Rohde&Schwarz NRP-Z11, NRP-Z21 instruction manual & service manual

Test and Measurement
Division

Manual

Average Power Sensor

R&S NRP-Z11

10 MHz to 8 GHz / 200 pW to 200 mW

1138.3004.02

R&S NRP-Z21

10 MHz to 18 GHz / 200 pW to 200 mW

1137.6000.02

Printed in the Federal
Republic of Germany

1137.7406.32-02- 1

Dear Customer,
R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. K G.

Trade names are trademarks of the owners.

1137.7406.32-02- 2

R&S NRP-Z11/-Z21 Supplement

Operation of Power Sensor R&S NRP-Z11

from R&S NRP base unit

The power sensor sh ipped with this m anual has firmware revision 02.00 or higher. For oper ation from
an R&S NRP base unit, all soft ware com ponents within th e base unit m ust also be of revisio n 02.00 or
higher.

Revision numbers f or the soft ware com ponents instal led in th e bas e unit can be disp layed under menu
item ’System Info’, lines ’Main Program’, ’Bootloader’ and ’Keybd. Ctrl.’. The ’System Info’ can be found
in the ’File’ menu for revision numbers lower than 02.00 and in the ’System’ menu otherwise.

1137.7406.32-01- Supplement 1 E-1

R&S NRP-Z11/-Z21 Tabbed Divider Overview

Tabbed Divider Overview

Data Sheet

Safety Instructi ons
Certificate of Quality
EU Certificate of Conformity
List of R&S Representatives

Tabbed Divider

1 Chapter 1: Putting into Operation

2 Chapter 2: Virtual Power Meter

3 Chapter 3: Operation

4 Chapter 4: for future extensions

5 Chapter 5: Remote Control – Basics

6 Chapter 6: Remote Control – Commands

7 Chapter 7: for future extensions

8 Service Instructions

1137.7406.32 RE E-1

Before putting the product into operation for

the first time, make sure to read the following

Safety Instructions

Rohde & Schwarz makes every effort to keep the safety standard of its products up to date and to offer
its customers the highest possible degree of safety. Our products and the auxiliary equipment required
for them are designed and tested in accordance with the relevant safety standards. Compliance with
these standards is continuously monitored by our quality assurance system. This product has been
designed and tested in accordance with the EC Certificate of Conformity and has left the manufacturer’s
plant in a condition fully complying with safety standards. To maintain this condition and to ensure safe
operation, observe all instructions and warnings provided in this manual. If you have any questions
regarding these safety instructions, Rohde & Schwarz will be happy to answer them.

Furthermore, it is your responsibility to use the product in an appropriate manner. This product is
designed for use solely in industrial and laboratory environments or in the field and must not be used in
any way that may cause personal injury or property damage. You are responsible if the product is used
for an intention other than its designated purpose or in disregard of the manufacturer's instructions. The
manufacturer shall assume no responsibility for such use of the product.

The product is used for its designated purpose if it is used in accordance with its operating manual and
within its performance limits (see data sheet, documentation, the following safety instructions). Using
the products requires technical skills and knowledge of English. It is therefore essential that the
products be used exclusively by skilled and specialized staff or thoroughly trained personnel with the
required skills. If personal safety gear is required for using Rohde & Schwarz products, this will be
indicated at the appropriate place in the product documentation.

Observe
operating
instructions

Supply
voltage
ON/OFF

Weight
indication for
units >18 kg

Standby
indication

Symbols and safety labels

Danger of
electric
shock

Direct
current
(DC)

Warning!
Hot
surface

PE terminal Ground

Alternating
current (AC)

Direct/alternating
current (DC/AC)

Ground
terminal

Device fully
protected by
double/reinforced
insulation

Attention!
Electrostatic
sensitive
devices

1171.0000.42-02.00 Sheet 1

Safety Instructions

Observing the safety instructions will help prevent personal injury or damage of any kind caused by
dangerous situations. Therefore, carefully read through and adhere to the following safety instructions
before putting the product into operation. It is also absolutely essential to observe the additional safety
instructions on personal safety that appear in other parts of the documentation. In these safety
instructions, the word "product" refers to all merchandise sold and distributed by Rohde & Schwarz,
including instruments, systems and all accessories.

Tags and their meaning

DANGER

WARNING

CAUTION This tag indicates a safety hazard with a low potential of risk for the user

ATTENTION

NOTE

These tags are in accordance with the standard definition for civil applications in the European
Economic Area. Definitions that deviate from the standard definition may also exist. It is therefore
essential to make sure that the tags described here are always used only in connection with the
associated documentation and the associated product. The use of tags in connection with unassociated
products or unassociated documentation can result in misinterpretations and thus contribute to personal
injury or material damage.

This tag indicates a safety hazard with a high potential of risk for the
user that can result in death or serious injuries.

This tag indicates a safety hazard with a medium potential of risk for the
user that can result in death or serious injuries.

that can result in slight or minor injuries.

This tag indicates the possibility of incorrect use that can cause damage
to the product.

This tag indicates a situation where the user should pay special attention
to operating the product but which does not lead to damage.

Basic safety instructions

1. The product may be operated only under
the operating conditions and in the
positions specified by the manufacturer. Its
ventilation must not be obstructed during
operation. Unless otherwise specified, the
following requirements apply to
Rohde & Schwarz products:
prescribed operating position is always with
the housing floor facing down, IP protection
2X, pollution severity 2, overvoltage
category 2, use only in enclosed spaces,
max. operation altitude max. 2000 m.
Unless specified otherwise in the data
sheet, a tolerance of ±10% shall apply to
the nominal voltage and of ±5% to the
nominal frequency.

2. Applicable local or national safety
regulations and rules for the prevention of
accidents must be observed in all work
performed. The product may be opened
only by authorized, specially trained
personnel. Prior to performing any work on
the product or opening the product, the

product must be disconnected from the
supply network. Any adjustments,
replacements of parts, maintenance or
repair must be carried out only by technical
personnel authorized by Rohde & Schwarz.
Only original parts may be used for
replacing parts relevant to safety (e.g.
power switches, power transformers,
fuses). A safety test must always be
performed after parts relevant to safety
have been replaced (visual inspection, PE
conductor test, insulation resistance
measurement, leakage current
measurement, functional test).

3. As with all industrially manufactured goods,
the use of substances that induce an
allergic reaction (allergens, e.g. nickel)
such as aluminum cannot be generally
excluded. If you develop an allergic
reaction (such as a skin rash, frequent
sneezing, red eyes or respiratory
difficulties), consult a physician immediately
to determine the cause.

1171.0000.42-02.00 Sheet 2

Safety Instructions

4. If products/components are mechanically
and/or thermically processed in a manner
that goes beyond their intended use,
hazardous substances (heavy-metal dust
such as lead, beryllium, nickel) may be
released. For this reason, the product may
only be disassembled, e.g. for disposal
purposes, by specially trained personnel.
Improper disassembly may be hazardous to
your health. National waste disposal
regulations must be observed.

5. If handling the product yields hazardous
substances or fuels that must be disposed
of in a special way, e.g. coolants or engine
oils that must be replenished regularly, the
safety instructions of the manufacturer of
the hazardous substances or fuels and the
applicable regional waste disposal
regulations must be observed. Also
observe the relevant safety instructions in
the product documentation.

6. Depending on the function, certain products
such as RF radio equipment can produce
an elevated level of electromagnetic
radiation. Considering that unborn life
requires increased protection, pregnant
women should be protected by appropriate
measures. Persons with pacemakers may
also be endangered by electromagnetic
radiation. The employer is required to
assess workplaces where there is a special
risk of exposure to radiation and, if
necessary, take measures to avert the
danger.

7. Operating the products requires special
training and intense concentration. Make
certain that persons who use the products
are physically, mentally and emotionally fit
enough to handle operating the products;
otherwise injuries or material damage may
occur. It is the responsibility of the
employer to select suitable personnel for
operating the products.

8. Prior to switching on the product, it must be
ensured that the nominal voltage setting on
the product matches the nominal voltage of
the AC supply network. If a different voltage
is to be set, the power fuse of the product
may have to be changed accordingly.

9. In the case of products of safety class I with
movable power cord and connector,
operation is permitted only on sockets with
earthing contact and protective earth
connection.

10. Intentionally breaking the protective earth
connection either in the feed line or in the
product itself is not permitted. Doing so can
result in the danger of an electric shock
from the product. If extension cords or
connector strips are implemented, they
must be checked on a regular basis to
ensure that they are safe to use.

11. If the product has no power switch for
disconnection from the AC supply, the plug
of the connecting cable is regarded as the
disconnecting device. In such cases, it
must be ensured that the power plug is
easily reachable and accessible at all times
(length of connecting cable approx. 2 m).
Functional or electronic switches are not
suitable for providing disconnection from
the AC supply. If products without power
switches are integrated in racks or systems,
a disconnecting device must be provided at
the system level.

12. Never use the product if the power cable is
damaged. By taking appropriate safety
measures and carefully laying the power
cable, ensure that the cable cannot be
damaged and that no one can be hurt by
e.g. tripping over the cable or suffering an
electric shock.

13. The product may be operated only from
TN/TT supply networks fused with max.
16 A.

14. Do not insert the plug into sockets that are
dusty or dirty. Insert the plug firmly and all
the way into the socket. Otherwise this can
result in sparks, fire and/or injuries.

15. Do not overload any sockets, extension
cords or connector strips; doing so can
cause fire or electric shocks.

16. For measurements in circuits with voltages
V

> 30 V, suitable measures (e.g.

rms

appropriate measuring equipment, fusing,
current limiting, electrical separation,
insulation) should be taken to avoid any
hazards.

17. Ensure that the connections with
information technology equipment comply
with IEC 950/EN 60950.

18. Never remove the cover or part of the
housing while you are operating the
product. This will expose circuits and
components and can lead to injuries, fire or
damage to the product.

1171.0000.42-02.00 Sheet 3

Safety Instructions

19. If a product is to be permanently installed,
the connection between the PE terminal on
site and the product's PE conductor must
be made first before any other connection
is made. The product may be installed and
connected only by a skilled electrician.

20. For permanently installed equipment
without built-in fuses, circuit breakers or
similar protective devices, the supply circuit
must be fused in such a way that suitable
protection is provided for users and
products.

21. Do not insert any objects into the openings
in the housing that are not designed for this
purpose. Never pour any liquids onto or into
the housing. This can cause short circuits
inside the product and/or electric shocks,
fire or injuries.

22. Use suitable overvoltage protection to
ensure that no overvoltage (such as that
caused by a thunderstorm) can reach the
product. Otherwise the operating personnel
will be endangered by electric shocks.

23. Rohde & Schwarz products are not
protected against penetration of water,
unless otherwise specified (see also safety
instruction 1.). If this is not taken into
account, there exists the danger of electric
shock or damage to the product, which can
also lead to personal injury.

24. Never use the product under conditions in
which condensation has formed or can form
in or on the product, e.g. if the product was
moved from a cold to a warm environment.

matching Rohde & Schwarz type (see
spare parts list). Batteries and storage
batteries are hazardous waste. Dispose of
them only in specially marked containers.
Observe local regulations regarding waste
disposal. Do not short-circuit batteries or
storage batteries.

28. Please be aware that in the event of a fire,
toxic substances (gases, liquids etc.) that
may be hazardous to your health may
escape from the product.

29. Please be aware of the weight of the
product. Be careful when moving it;
otherwise you may injure your back or other
parts of your body.

30. Do not place the product on surfaces,
vehicles, cabinets or tables that for reasons
of weight or stability are unsuitable for this
purpose. Always follow the manufacturer's
installation instructions when installing the
product and fastening it to objects or
structures (e.g. walls and shelves).

31. Handles on the products are designed
exclusively for personnel to hold or carry
the product. It is therefore not permissible
to use handles for fastening the product to
or on means of transport such as cranes,
fork lifts, wagons, etc. The user is
responsible for securely fastening the
products to or on the means of transport
and for observing the safety regulations of
the manufacturer of the means of transport.
Noncompliance can result in personal injury
or material damage.

25. Do not close any slots or openings on the
product, since they are necessary for
ventilation and prevent the product from
overheating. Do not place the product on
soft surfaces such as sofas or rugs or
inside a closed housing, unless this is well
ventilated.

26. Do not place the product on heat­generating devices such as radiators or fan
heaters. The temperature of the
environment must not exceed the maximum
temperature specified in the data sheet.

27. Batteries and storage batteries must not be
exposed to high temperatures or fire. Keep
batteries and storage batteries away from
children. If batteries or storage batteries are
improperly replaced, this can cause an
explosion (warning: lithium cells). Replace
the battery or storage battery only with the

1171.0000.42-02.00 Sheet 4

32. If you use the product in a vehicle, it is the
sole responsibility of the driver to drive the
vehicle safely. Adequately secure the
product in the vehicle to prevent injuries or
other damage in the event of an accident.
Never use the product in a moving vehicle if
doing so could distract the driver of the
vehicle. The driver is always responsible for
the safety of the vehicle; the manufacturer
assumes no responsibility for accidents or
collisions.

33. If a laser product (e.g. a CD/DVD drive) is
integrated in a Rohde & Schwarz product,
do not use any other settings or functions
than those described in the documentation.
Otherwise this may be hazardous to your
health, since the laser beam can cause
irreversible damage to your eyes. Never try
to take such products apart, and never look
into the laser beam.

Por favor lea imprescindiblemente antes de
la primera puesta en funcionamiento las
siguientes informaciones de seguridad

Informaciones de seguridad

Es el principio de Rohde & Schwarz de tener a sus productos siempre al día con los estandards de
seguridad y de ofrecer a sus clientes el máximo grado de seguridad. Nuestros productos y todos los
equipos adicionales son siempre fabricados y examinados según las normas de seguridad vigentes.
Nuestra sección de gestión de la seguridad de calidad controla constantemente que sean cumplidas
estas normas. Este producto ha sido fabricado y examinado según el comprobante de conformidad
adjunto según las normas de la CE y ha salido de nuestra planta en estado impecable según los
estandards técnicos de seguridad. Para poder preservar este estado y garantizar un funcionamiento
libre de peligros, deberá el usuario atenerse a todas las informaciones, informaciones de seguridad y
notas de alerta. Rohde&Schwarz está siempre a su disposición en caso de que tengan preguntas
referentes a estas informaciones de seguridad.

Además queda en la responsabilidad del usuario utilizar el producto en la forma debida. Este producto
solamente fue elaborado para ser utilizado en la indústria y el laboratorio o para fines de campo y de
ninguna manera deberá ser utilizado de modo que alguna persona/cosa pueda ser dañada. El uso del
producto fuera de sus fines definidos o despreciando las informaciones de seguridad del fabricante
queda en la responsabilidad del usuario. El fabricante no se hace en ninguna forma responsable de
consecuencias a causa del maluso del producto.

Se parte del uso correcto del producto para los fines definidos si el producto es utilizado dentro de las
instrucciones del correspondiente manual del uso y dentro del margen de rendimiento definido (ver
hoja de datos, documentación, informaciones de seguridad que siguen). El uso de los productos hace
necesarios conocimientos profundos y el conocimiento del idioma inglés. Por eso se deberá tener en
cuenta de exclusivamente autorizar para el uso de los productos a personas péritas o debidamente
minuciosamente instruidas con los conocimientos citados. Si fuera necesaria indumentaria de
seguridad para el uso de productos de R&S, encontrará la información debida en la documentación del
producto en el capítulo correspondiente.

Símbolos y definiciones de seguridad

Ver manual
de
instrucciones
del uso

Informaciones
para
maquinaria
con uns peso
de > 18kg

Peligro de
golpe de
corriente

¡Advertencia!
Superficie
caliente

Conexión a
conductor
protector

Conexión
a tierra

Conexión
a masa
conductora

¡Cuidado!
Elementos de
construción
con peligro de
carga
electroestática

El aparato está
protegido en su
totalidad por un
aislamiento de
doble refuerzo

potencia EN
MARCHA/PARADA

Indicación
Stand-by

Corriente
continua
DC

Corriente
alterna AC

Corriente
continua/alterna
DC/AC

1171.0000.42-02.00 página 1

Informaciones de seguridad

Tener en cuenta las informaciones de seguridad sirve para tratar de evitar daños y peligros de toda
clase. Es necesario de que se lean las siguientes informaciones de seguridad concienzudamente y se
tengan en cuenta debidamente antes de la puesta en funcionamiento del producto. También deberán
ser tenidas en cuenta las informaciones para la protección de personas que encontrarán en otro
capítulo de esta documentación y que también son obligatorias de seguir. En las informaciones de
seguridad actuales hemos juntado todos los objetos vendidos por Rohde&Schwarz bajo la
denominación de „producto“, entre ellos también aparatos, instalaciones así como toda clase de
accesorios.

Palabras de señal y su significado

PELIGRO Indica un punto de peligro con gran potencial de riesgo para el

ususario.Punto de peligro que puede llevar hasta la muerte o graves
heridas.

ADVERTENCIA Indica un punto de peligro con un protencial de riesgo mediano para el

usuario. Punto de peligro que puede llevar hasta la muerte o graves
heridas .

ATENCIÓN Indica un punto de peligro con un protencial de riesgo pequeño para el

usuario. Punto de peligro que puede llevar hasta heridas leves o
pequeñas

CUIDADO Indica la posibilidad de utilizar mal el producto y a consecuencia

dañarlo.

INFORMACIÓN Indica una situación en la que deberían seguirse las instrucciones en el

uso del producto, pero que no consecuentemente deben de llevar a un
daño del mismo.

Las palabras de señal corresponden a la definición habitual para aplicaciones civiles en el ámbito de la
comunidad económica europea. Pueden existir definiciones diferentes a esta definición. Por eso se
debera tener en cuenta que las palabras de señal aquí descritas sean utilizadas siempre solamente en
combinación con la correspondiente documentación y solamente en combinación con el producto
correspondiente. La utilización de las palabras de señal en combinación con productos o
documentaciones que no les correspondan puede llevar a malinterpretaciones y tener por
consecuencia daños en personas u objetos.

Informaciones de seguridad elementales

1. El producto solamente debe ser utilizado
según lo indicado por el fabricante referente
a la situación y posición de funcionamiento
sin que se obstruya la ventilación. Si no se
convino de otra manera, es para los
productos R&S válido lo que sigue:
como posición de funcionamiento se define
principialmente la posición con el suelo de la
caja para abajo , modo de protección IP 2X,
grado de suciedad 2, categoría de
sobrecarga eléctrica 2, utilizar solamente en
estancias interiores, utilización hasta 2000 m
sobre el nivel del mar.
A menos que se especifique otra cosa en la
hoja de datos, se aplicará una tolerancia de
±10% sobre el voltaje nominal y de ±5%
sobre la frecuencia nominal.

2. En todos los trabajos deberán ser tenidas en
cuenta las normas locales de seguridad de
trabajo y de prevención de accidentes. El
producto solamente debe de ser abierto por
personal périto autorizado. Antes de efectuar
trabajos en el producto o abrirlo deberá este
ser desconectado de la corriente. El ajuste,
el cambio de partes, la manutención y la
reparación deberán ser solamente
efectuadas por electricistas autorizados por
R&S. Si se reponen partes con importancia
para los aspectos de seguridad (por ejemplo
el enchufe, los transformadores o los
fusibles), solamente podrán ser sustituidos
por partes originales. Despues de cada
recambio de partes elementales para la
seguridad deberá ser efectuado un control de

1171.0000.42-02.00 página 2

Informaciones de seguridad

seguridad (control a primera vista, control de
conductor protector, medición de resistencia
de aislamiento, medición de medición de la
corriente conductora, control de
funcionamiento).

3. Como en todo producto de fabricación
industrial no puede ser excluido en general
de que se produzcan al usarlo elementos
que puedan generar alergias, los llamados
elementos alergénicos (por ejemplo el
níquel). Si se producieran en el trato con
productos R&S reacciones alérgicas, como
por ejemplo urticaria, estornudos frecuentes,
irritación de la conjuntiva o dificultades al
respirar, se deberá consultar inmediatamente
a un médico para averigurar los motivos de
estas reacciones.

4. Si productos / elementos de construcción son
tratados fuera del funcionamiento definido de
forma mecánica o térmica, pueden generarse
elementos peligrosos (polvos de sustancia
de metales pesados como por ejemplo
plomo, berilio, níquel). La partición elemental
del producto, como por ejemplo sucede en el
tratamiento de materias residuales, debe de
ser efectuada solamente por personal
especializado para estos tratamientos. La
partición elemental efectuada
inadecuadamente puede generar daños para
la salud. Se deben tener en cuenta las
directivas nacionales referentes al
tratamiento de materias residuales.

5. En el caso de que se produjeran agentes de
peligro o combustibles en la aplicación del
producto que debieran de ser transferidos a
un tratamiento de materias residuales, como
por ejemplo agentes refrigerantes que deben
ser repuestos en periodos definidos, o
aceites para motores, deberan ser tenidas en
cuenta las prescripciones de seguridad del
fabricante de estos agentes de peligro o
combustibles y las regulaciones regionales
para el tratamiento de materias residuales.
Cuiden también de tener en cuenta en caso
dado las prescripciones de seguridad
especiales en la descripción del producto.

6. Ciertos productos, como por ejemplo las
instalaciones de radiación HF, pueden a
causa de su función natural, emitir una
radiación electromagnética aumentada. En
vista a la protección de la vida en desarrollo
deberían ser protegidas personas
embarazadas debidamente. También las
personas con un bypass pueden correr

peligro a causa de la radiación
electromagnética. El empresario está
comprometido a valorar y señalar areas de
trabajo en las que se corra un riesgo de
exposición a radiaciones aumentadas de
riesgo aumentado para evitar riesgos.

7. La utilización de los productos requiere
instrucciones especiales y una alta
concentración en el manejo. Debe de
ponerse por seguro de que las personas que
manejen los productos estén a la altura de
los requerimientos necesarios referente a
sus aptitudes físicas, psíquicas y
emocionales, ya que de otra manera no se
pueden excluir lesiones o daños de objetos.
El empresario lleva la responsabilidad de
seleccionar el personal usuario apto para el
manejo de los productos.

8. Antes de la puesta en marcha del producto
se deberá tener por seguro de que la tensión
preseleccionada en el producto equivalga a
la del la red de distribución. Si es necesario
cambiar la preselección de la tensión
también se deberán en caso dabo cambiar
los fusibles correspondientes del prodcuto.

9. Productos de la clase de seguridad I con
alimentación móvil y enchufe individual de
producto solamente deberán ser conectados
para el funcionamiento a tomas de corriente
de contacto de seguridad y con conductor
protector conectado.

10. Queda prohibida toda clase de interrupción
intencionada del conductor protector, tanto
en la toma de corriente como en el mismo
producto ya que puede tener como
consecuencia el peligro de golpe de corriente
por el producto. Si se utilizaran cables o
enchufes de extensión se deberá poner al
seguro, que es controlado su estado técnico
de seguridad.

11. Si el producto no está equipado con un
interruptor para desconectarlo de la red, se
deberá considerar el enchufe del cable de
distribución como interruptor. En estos casos
deberá asegurar de que el enchufe sea de
fácil acceso y nabejo (medida del cable de
distribución aproximadamente 2 m). Los
interruptores de función o electrónicos no
son aptos para el corte de la red eléctrica. Si
los productos sin interruptor están integrados
en construciones o instalaciones, se deberá
instalar el interruptor al nivel de la
instalación.

1171.0000.42-02.00 página 3

Informaciones de seguridad

12. No utilice nunca el producto si está dañado el
cable eléctrico. Asegure a través de las
medidas de protección y de instalación
adecuadas de que el cable de eléctrico no
pueda ser dañado o de que nadie pueda ser
dañado por él, por ejemplo al tropezar o por
un golpe de corriente.

13. Solamente está permitido el funcionamiento
en redes de distribución TN/TT aseguradas
con fusibles de como máximo 16 A.

14. Nunca conecte el enchufe en tomas de
corriente sucias o llenas de polvo. Introduzca
el enchufe por completo y fuertemente en la
toma de corriente. Si no tiene en
consideración estas indicaciones se arriesga
a que se originen chispas, fuego y/o heridas.

15. No sobrecargue las tomas de corriente, los
cables de extensión o los enchufes de
extensión ya que esto pudiera causar fuego
o golpes de corriente.

16. En las mediciones en circuitos de corriente
con una tensión de entrada de Ueff > 30 V se
deberá tomar las precauciones debidas para
impedir cualquier peligro (por ejemplo
medios de medición adecuados, seguros,
limitación de tensión, corte protector,
aislamiento etc.).

17. En caso de conexión con aparatos de la
técnica informática se deberá tener en
cuenta que estos cumplan los requisitos de
la EC950/EN60950.

18. Nunca abra la tapa o parte de ella si el
producto está en funcionamiento. Esto pone
a descubierto los cables y componentes
eléctricos y puede causar heridas, fuego o
daños en el producto.

19. Si un producto es instalado fijamente en un
lugar, se deberá primero conectar el
conductor protector fijo con el conductor
protector del aparato antes de hacer
cualquier otra conexión. La instalación y la
conexión deberán ser efecutadas por un
electricista especializado.

20. En caso de que los productos que son
instalados fijamente en un lugar sean sin
protector implementado, autointerruptor o
similares objetos de protección, deberá la
toma de corriente estar protegida de manera
que los productos o los usuarios estén
suficientemente protegidos.

21. Por favor, no introduzca ningún objeto que
no esté destinado a ello en los orificios de la
caja del aparato. No vierta nunca ninguna
clase de líquidos sobre o en la caja. Esto
puede producir corto circuitos en el producto
y/o puede causar golpes de corriente, fuego
o heridas.

22. Asegúrese con la protección adecuada de
que no pueda originarse en el producto una
sobrecarga por ejemplo a causa de una
tormenta. Si no se verá el personal que lo
utilice expuesto al peligro de un golpe de
corriente.

23. Los productos R&S no están protegidos
contra el agua si no es que exista otra
indicación, ver también punto 1. Si no se
tiene en cuenta esto se arriesga el peligro de
golpe de corriente o de daños en el producto
lo cual también puede llevar al peligro de
personas.

24. No utilice el producto bajo condiciones en las
que pueda producirse y se hayan producido
líquidos de condensación en o dentro del
producto como por ejemplo cuando se
desplaza el producto de un lugar frío a un
lugar caliente.

25. Por favor no cierre ninguna ranura u orificio
del producto, ya que estas son necesarias
para la ventilación e impiden que el producto
se caliente demasiado. No pongan el
producto encima de materiales blandos como
por ejemplo sofás o alfombras o dentro de
una caja cerrada, si esta no está
suficientemente ventilada.

26. No ponga el producto sobre aparatos que
produzcan calor, como por ejemplo
radiadores o calentadores. La temperatura
ambiental no debe superar la temperatura
máxima especificada en la hoja de datos.

1171.0000.42-02.00 página 4

Informaciones de seguridad

27. Baterías y acumuladores no deben de ser
expuestos a temperaturas altas o al fuego.
Guardar baterías y acumuladores fuera del
alcance de los niños. Si las baterías o los
acumuladores no son cambiados con la
debida atención existirá peligro de explosión
(atención celulas de Litio). Cambiar las
baterías o los acumuladores solamente por
los del tipo R&S correspondiente (ver lista de
piezas de recambio). Baterías y
acumuladores son deshechos problemáticos.
Por favor tirenlos en los recipientes
especiales para este fín. Por favor tengan en
cuenta las prescripciones nacionales de cada
país referente al tratamiento de deshechos.
Nunca sometan las baterías o acumuladores
a un corto circuito.

28. Tengan en consideración de que en caso de
un incendio pueden escaparse gases tóxicos
del producto, que pueden causar daños a la
salud.

29. Por favor tengan en cuenta que en caso de
un incendio pueden desprenderse del
producto agentes venenosos (gases, líquidos
etc.) que pueden generar daños a la salud.

30. No sitúe el producto encima de superficies,
vehículos, estantes o mesas, que por sus
características de peso o de estabilidad no
sean aptas para él. Siga siempre las
instrucciones de instalación del fabricante
cuando instale y asegure el producto en
objetos o estructuras (por ejemplo paredes y
estantes).

31. Las asas instaladas en los productos sirven
solamente de ayuda para el manejo que
solamente está previsto para personas. Por
eso no está permitido utilizar las asas para la
sujecion en o sobre medios de transporte
como por ejemplo grúas, carretillas
elevadoras de horquilla, carros etc. El
usuario es responsable de que los productos
sean sujetados de forma segura a los medios
de transporte y de que las prescripciones de
seguridad del fabricante de los medios de
transporte sean tenidas en cuenta. En caso
de que no se tengan en cuenta pueden
causarse daños en personas y objetos.

32. Si llega a utilizar el producto dentro de un
vehículo, queda en la responsabilidad
absoluta del conductor que conducir el
vehículo de manera segura. Asegure el
producto dentro del vehículo debidamente
para evitar en caso de un accidente las
lesiones u otra clase de daños. No utilice
nunca el producto dentro de un vehículo en
movimiento si esto pudiera distraer al
conductor. Siempre queda en la
responsabilidad absoluta del conductor la
seguridad del vehículo y el fabricante no
asumirá ninguna clase de responsabilidad
por accidentes o colisiones.

33. Dado el caso de que esté integrado un
producto de laser en un producto R&S (por
ejemplo CD/DVD-ROM) no utilice otras
instalaciones o funciones que las descritas
en la documentación. De otra manera pondrá
en peligro su salud, ya que el rayo laser
puede dañar irreversiblemente sus ojos.
Nunca trate de descomponer estos
productos. Nunca mire dentro del rayo laser.

1171.0000.42-02.00 página 5

Certified Quality System

Certified Environmental System

ISO 9001

DQS REG. NO 1954 QM

Qualitätszertifikat

Sehr geehrter Kunde,

Sie haben sich für den Kauf eines Rohde &
Schwarz-Produktes entschieden. Hiermit
erhalten Sie ein nach modernsten Ferti­gungsmethoden hergestelltes Produkt. Es
wurde nach den Regeln unseres Qualitäts­managementsystems entwickelt, gefer­tigt und geprüft. Das Rohde & Schwarz­Qualitätsmanagementsystem ist u.a. nach
ISO 9001 und ISO14001 zertifiziert.

ISO 14001

Certificate of quality

Dear Customer,

You have decided to buy a Rohde &
Schwarz product. You are thus assured of
receiving a product that is manufactured
using the most modern methods available.
This product was developed, manufac­tured and tested in compliance with our
quality management system standards.
The Rohde & Schwarz quality manage­ment system is certified according to stan­dards such as ISO9001 and ISO14001.

DQS REG. NO 1954 UM

Certificat de qualité

Cher client,

Vous avez choisi d'acheter un produit
Rohde & Schwarz. Vous disposez donc
d'un produit fabriqué d'après les métho­des les plus avancées. Le développement,
la fabrication et les tests respectent nos
normes de gestion qualité. Le système de
gestion qualité de Rohde & Schwarz a été
homologué, entre autres, conformément
aux normes ISO 9001 et ISO14001.

Certificate No.: 2002-36
This is to certify that:

Equipment type Stock No. Designation

NRP 1143.8500.02 Power Meter
NRP-B1 1146.9008.02 Sensor Check Source

NRP-B2 1146.8801.02 Second Sensor Input
NRP-B5 1146.9608.02 3rd und 4th Sensor
NRP-B6 1146.9908.02 Rear-Panel Sensor

NRP-Z3 1146. 7005.02 USB Adapter
NRP-Z4 1146. 8001.02 USB Adapter
NRP-Z11 1138.3004.02 Average Power Sensor
NRP-Z21 1137.6000.02 Average Power Sensor

EC Certificate of Conformity

complies with the provisions of the Directive of the Council of the European Union on the
approximation of the laws of the Member States

- relating to electrical equipment for use within defined voltage limits
(73/23/EEC revised by 93/68/EEC)

- relating to electromagnetic compatibility
(89/336/EEC revised by 91/263/EEC, 92/31/EEC, 93/68/EEC)

Conformity is proven by compliance with the following standards:
EN61010-1 : 1993 + A2 : 1995

EN55011 : 1998 + A1 : 1999
EN61326 : 1997 + A1 : 1998 + A2 : 2001

For the assessment of electromagnetic compatibility, the limits of radio interference for Class
B equipment as well as the immunity to interference for operation in industry have been used
as a basis.

Affixing the EC conformity mark as from 2002

ROHDE & SCHWARZ GmbH & Co. KG
Mühldorfstr. 15, D-81671 München

Munich, 2002-06-27 Central Quality Management FS-QZ / Becker

1143.8500.02 CE E-1

Support Center

Telefon / Telephone: [phone]

Fax: [phone]
E-mail: [e-mail]

Für technische Fragen zu diesem Rohde & Schwarz-Gerät steht Ihnen
die Hotline der Rohde & Schwarz Vertriebs-GmbH, Support Center, zur
Verfügung.

Unser Team bespricht mit Ihnen Ihre Fragen und sucht Lösungen für Ihre
Probleme.

Die Hotline ist Montag bis Freitag von 8.00 bis 17.00 Uhr MEZ besetzt.
Bei Anfragen außerhalb der Geschäftszeiten hinterlassen Sie bitte eine

Nachricht oder senden Sie eine Notiz per Fax oder E-Mail. Wir setzen
uns dann baldmöglichst mit Ihnen in Verbindung.

Um Ihr Gerät stets auf dem neuesten Stand zu halten,

Should you have any technical questions concerning this Rohde &
Schwarz product, please contact the hotline of Rohde & Schwarz
Vertriebs-GmbH, Support Center.

Our hotline team will answer your questions and find solutions to your
problems.

You can reach the hotline Monday through Friday from 8:00 until 17:00
CET.

If you need assistance outside office hours, please leave a message or
send us a fax or e-mail. We will contact you as soon as possible.

abonnieren Sie bitte Ihren persönlichen Newsletter unter

http://www.rohde-schwarz.com/www/response.nsf/newsletterpreselection.

Sie erhalten dann regelmäßig Informationen über Rohde &
Schwarz-Produkte Ihrer Wahl, über Firmware-Erweiterungen,
neue Teiber und Applikationsschriften.

To keep your instrument always up to date, please subscribe
to your personal newsletter at

http://www.rohde-schwarz.com/www/response.nsf/newsletterpreselection.

As a subscriber, you will receive information about your
selection of Rohde & Schwarz products, about firmware
extensions, new drivers and application notes on a regular
basis.

1007.8684.14-02.00

Adressen/Addresses

FIRMENSITZ/HEADQUARTERS

Rohde & Schwarz GmbH & Co. KG
Mühldorfstraße 15 · D-81671 München
Postfach 80 14 69 · D-81614 München

WERKE/PLANTS

Rohde & Schwarz Messgerätebau GmbH
Riedbachstraße 58 · D-87700 Memmingen
Postfach 1652 · D-87686 Memmingen

Rohde & Schwarz GmbH & Co. KG
Werk Teisnach
Kaikenrieder Straße 27 · D-94244 Teisnach
Postfach 1149 · D-94240 Teisnach

Rohde & Schwarz GmbH & Co. KG
Dienstleistungszentrum Köln
Graf-Zeppelin-Straße 18 · D-51147 Köln
Postfach 98 02 60 · D-51130 Köln

TOCHTERUNTERNEHMEN/SUBSIDIARIES

Rohde & Schwarz Vertriebs-GmbH
Mühldorfstraße 15 · D-81671 München
Postfach 80 14 69 · D-81614 München

Rohde & Schwarz International GmbH
Mühldorfstraße 15 · D-81671 München
Postfach 80 14 60 · D-81614 München

Rohde & Schwarz Engineering and Sales
GmbH
Mühldorfstraße 15 · D-81671 München
Postfach 80 14 29 · D-81614 München

R&S BICK Mobilfunk GmbH
Fritz-Hahne-Str. 7 · D-31848 Bad Münder
Postfach 2062 · D-31844 Bad Münder

Rohde & Schwarz FTK GmbH
Wendenschlossstraße 168, Haus 28
D-12557 Berlin

Rohde & Schwarz SIT GmbH
Agastraße 3
D-12489 Berlin

ADRESSEN DEUTSCHLAND/ADDRESSES GERMANY

Rohde & Schwarz Vertriebs-GmbH
Mühldorfstraße 15 · D-81671 München
Postfach 80 14 69 · D-81614 München

Zweigniederlassungen der Rohde &
Schwarz Vertriebs-GmbH/Branch offices of
Rohde & Schwarz Vertriebs-GmbH

Zweigniederlassung Nord, Geschäftsstelle
Berlin
Ernst-Reuter-Platz 10 · D-10587 Berlin
Postfach 100620 · D-10566 Berlin

Zweigniederlassung Büro Bonn
Josef-Wirmer-Straße 1-3 · D-53123 Bonn
Postfach 140264 · D-53057 Bonn

Zweigniederlassung Nord, Geschäftsstelle
Hamburg
Steilshooper Alle 47 · D-22309 Hamburg
Postfach 60 22 40 · D-22232 Hamburg

Zweigniederlassung Mitte, Geschäftsstelle
Köln
Niederkasseler Straße 33 · D-51147 Köln
Postfach 900 149 · D-51111 Köln

[e-mail]

[phone]

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Fax

E-mail

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-

-

-

-

-

-

-

-

-

-

-

-

-

Algeria

Argentina

Australia

Austria

Azerbaijan

Countries

Bangladesh

Belgium

Brasil

Brunei

Bulgaria

Herzegovina

Zweigniederlassung Süd, Geschäftsstelle
München
Mühldorfstraße 15 · D-81671 München
Postfach 80 14 69 · D-81614 München

Zweigniederlassung Süd, Geschäftsstelle
Nürnberg
Donaustraße 36
D-90451 Nürnberg

Zweigniederlassung Mitte, Geschäftsstelle
Neu-Isenburg
Siemensstraße 20
D-63263 Neu-Isenburg

ADRESSEN WELTWEIT/ADDRESSES WORLDWIDE

siehe / see AustriaAlbania

ROHDE & SCHWARZ
Bureau d'Alger
5B Place de Laperrine
16035 Hydra-Alger

PRECISION ELECTRONICA S.R.L.
Av. Pde Julio A. Roca 710 - 6° Piso
(C1067ABP) Buenos Aires

ROHDE & SCHWARZ (AUSTRALIA) Pty. Ltd.
Sales Support
Unit 6
2-8 South Street
Rydalmere, N.S.W. 2116

ROHDE & SCHWARZ-ÖSTERREICH
Ges.m.b.H.

Sonnleithnergasse 20
1100 Wien

ROHDE & SCHWARZ Azerbaijan
Liaison Office Baku
ISR Plaza
340 Nizami Str.
370000 Baku

siehe / see DenmarkBaltic

BIL Consortium Ltd.
Corporation Office
House No: 95/A, Block - 'F'
Road No. 4, Banani
Dhaka-1213

ROHDE & SCHWARZ BELGIUM N.V.
Excelsiorlaan 31 Bus 1
1930 Zaventem

ROHDE & SCHWARZ DO BRASIL LTDA.
Av. Alfredo Egidio de Souza Aranha n° 177,
1° andar - Santo Amaro
04726-170 Sao Paulo - SP

GKL Equipment PTE. Ltd.
Jurong Point Post Office
P.O.Box 141
Singapore 916405

ROHDE & SCHWARZ ÖSTERREICH
Representation Office Bulgaria
39, Fridtjof Nansen Blvd.
1000 Sofia

siehe / see SloveniaBosnia-

[e-mail]

[e-mail]-

[e-mail]

[e-mail]-

[e-mail]

[phone] (general)

[phone] (sales)

[e-mail]-

[e-mail]

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[phone]

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schwarz.com

[phone]

[phone]

[phone]
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Schwarz.com

[phone]
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schwarz.com

[phone]
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-

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-

Adressen/Addresses

Canada

Canada

Chile

China

China

China

China

China

China

China

China

Cyprus

Czech Republic

ROHDE & SCHWARZ CANADA Inc.
555 March Rd.
Kanata, Ontario K2K 2M5

TEKTRONIX CANADA Inc.
Test and Measurement
4929 Place Olivia
Saint-Laurent, Pq

Montreal H4R 2V6

DYMEQ Ltda.
Av. Larrain 6666
Santiago

ROHDE & SCHWARZ China Ltd.
Representative Office Shanghai
Central Plaza
227 Huangpi North Road
RM 807/809
Shanghai 200003

ROHDE & SCHWARZ China Ltd.
Representative Office Beijing
Room 602, Parkview Center
2 Jiangtai Road
Chao Yang District
Beijing 100016

ROHDE & SCHWARZ China Ltd.
Representative Office Guangzhou
Room 2903, Metro Plaza
183 Tianhe North Road
Guangzhou 510075

ROHDE & SCHWARZ China Ltd.
Representative Office Chengdu
Unit G, 28/F, First City Plaza
308 Shuncheng Avenue
Chengdu 610017

ROHDE & SCHWARZ China Ltd.
Unit 3115
31/F Entertainment Building
30 Queen's Road Central
Hongkong

ROHDE & SCHWARZ China Ltd.
Representative Office Xi'an
Room 10125, Jianguo Hotel Xi'an
No. 2, Huzhu Road
Xi'an 710048

Shanghai ROHDE & SCHWARZ
Communication Technology Co.Ltd.
Central Plaza, Unit 809
227 Huangpi North Road
Shanghai 200003

Beijing ROHDE & SCHWARZ Communication
Technology Co.Ltd.
Room 106, Parkview Centre
No. 2, Jiangtai Road
Chao Yang District
Beijing 100016

siehe / see SloveniaCroatia

HINIS TELECAST LTD.
Agiou Thoma 18
Kiti

Larnaca 7550

ROHDE & SCHWARZ - Praha s.r.o.
Hadovka Office Park
Evropská 33c
16000 Praha 6

[e-mail]

[phone]
[phone]

[e-mail]

[phone]
[phone]

[phone]
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[e-mail]

[phone]
[phone]

[phone]
[phone]

[e-mail]-

[phone] to 09

[e-mail]

[e-mail]

schwarz.com

[phone]
[phone]

[phone]

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[phone]
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[phone]
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[e-mail]

[phone]
[phone]

Denmark

Ecuador

Egypt

El Salvador

Estonia

Finland

France

France

France

France

France

France

Ghana

Greece

Hongkong

Hungary

ROHDE & SCHWARZ DANMARK A/S
Ejby Industrivej 40
2600 Glostrup

REPRESENTACIONES MANFRED
WEINZIERL
Vía Láctea No. 4 y Via Sta. Inés
P.O.Box 17-22-20309
1722 Cumbayá-Quito

U.A.S. Universal Advanced Systems
31 Manshiet El-Bakry Street
Heliopolis
11341 Cairo

siehe / see Mexico

ROHDE & SCHWARZ DANMARK A/S
Estonian Branch Office
Narva mnt. 13
10151 Tallinn

Orbis Oy
P.O.Box 15
00421 Helsinski 42

ROHDE & SCHWARZ FRANCE
Immeuble "Le Newton"
9-11, rue Jeanne Braconnier
92366 Meudon La Forêt Cédex

Niederlassung/Subsidiary Rennes
37 Rue du Bignon
Bât. A
F-35510 Cesson Sevigne

Niederlassung/Subsidiary Toulouse
Technoparc 3
B.P. 501
F-31674 Labège Cédex

Aix-en-Provence [phone]

Office Lyon [phone]

Office Nancy [phone]

KOP Engineering Ltd.
P.O. Box 11012
3rd Floor Akai House, Osu
Accra North

MERCURY S.A.
6, Loukianou Str.
10675 Athens

siehe / see Mexico Guatemala

siehe / see Mexico Honduras

Electronic Scientific Engineering
36/F Dorset House, Taikoo Place
979 King's Road
Quarry Bay
Hong Kong

ROHDE & SCHWARZ
Budapesti Iroda
Váci út 169
1138 Budapest

siehe / see DenmarkIceland

[e-mail]

[phone]
[phone]

[phone]
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[e-mail]

[phone]
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[e-mail]

[phone]
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[e-mail]-

[e-mail]

schwarz.com

[phone]
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Adressen/Addresses

India

India

India

India

Indonesia

Iran

Israel

Israel

Italy

Italy

Japan

Jordan

Kazakhstan

ROHDE & SCHWARZ India Pvt. Ltd.
Bangalore Office
No. 24, Service Road, Domlur
2nd Stage Extension
Bangalore - 560 071

ROHDE & SCHWARZ India Pvt. Ltd.
Hyderabad Office
302 & 303, Millenium Centre
6-3-1099/1100, Somajiguda

Hyderabad - 500 016

ROHDE & SCHWARZ India Pvt. Ltd.
244, Okhla Industrial Estate, Phase-III
New Delhi 110020

ROHDE & SCHWARZ India Pvt. Ltd.
RS India Mumbai Office
B-603, Remi Bizcourt, Shah Industrial
Estate, Off Veera Desai Road
Mumbai - 400 058

PT ROHDE & SCHWARZ Indonesia

Graha Paramita 5th Floor
Jln. Denpasar Raya Blok D-2

Jakarta 12940

ROHDE & SCHWARZ IRAN

Groundfloor No. 1, 14th Street
Khaled Eslamboli (Vozara) Ave.
15117 Tehran

siehe / see United KingdomIreland

EASTRONICS LTD.
Messtechnik / T&M Equipment
11 Rozanis St.
P.O.Box 39300
Tel Aviv 61392

J.M. Moss (Engineering) Ltd.
Kommunikationstechnik/ Communications
Equipment
9 Oded Street
P.O.Box 967
52109 Ramat Gan

ROHDE & SCHWARZ ITALIA S.p.a.
Centro Direzionale Lombardo
Via Roma 108
20060 Cassina de Pecchi (MI)

ROHDE & SCHWARZ ITALIA S.p.a.
Via Tiburtina 1182
00156 Roma

ADVANTEST Corporation
RS Sales Department
1-32-1, Asahi-cho
Nerima-ku
Tokyo 179-0071

Jordan Crown Engineering & Trading Co.

Jabal Amman, Second Circle
Youssef Ezzideen Street
P.O.Box 830414
Amman, 11183

ROHDE & SCHWARZ Kazakhstan
Representative Office Almaty
Pl. Respubliki 15
480013 Almaty

[e-mail]

[phone]
[phone]

[e-mail]

[phone]
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[e-mail]

[phone]
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[e-mail]-schwarz

[phone]
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[e-mail]

[phone]

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[e-mail]

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[e-mail]-

[e-mail]

RS-Kazakhstan@RUS-Rohde-

schwarz.com

[phone]
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[phone]
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[e-mail]

[phone]
[phone]

Schwarz.com

Kenya

Korea

Kuwait

Latvia

Lebanon

Lithuania

Malaysia

Malta

Mexico

Mexico

Netherlands

New Zealand

Nigeria

Excel Enterprises Ltd
Dunga Road
P.O.Box 42 788
Nairobi

ROHDE & SCHWARZ Korea Ltd.
83-29 Nonhyun-Dong, Kangnam-Ku

Seoul 135-010

Group Five Trading & Contracting Co.
Mezanine Floor
Al-Bana Towers
Ahmad Al Jaber Street
Sharq

ROHDE & SCHWARZ DANMARK A/S
Latvian Branch Office
Merkela iela 21-301
1050 Riga

ROHDE & SCHWARZ Liaison Office
c/o Haji Abdullah Alireza Co. Ltd.
P.O.Box 361
Riyadh 11411

siehe / see SwitzerlandLiechtenstein

ROHDE & SCHWARZ DANMARK A/S
Lithuanian Office
Lukiskiu 5-228
2600 Vilnius

siehe / see BelgiumLuxembourg

siehe / see SloveniaMacedonia

DAGANG TEKNIK SDN. BHD.
No. 9, Jalan SS 4D/2
Selangor Darul Ehsan

47301 Petaling Jaya

ITEC International Technology Ltd
B'Kara Road
San Gwann SGN 08

Rohde & Schwarz de Mexico (RSMX)
S. de R.L. de C.V.
German Centre Oficina 4-2-2
Av. Santa Fé 170
Col. Lomas de Santa Fé
01210 Mexico D.F.

Rohde & Schwarz de Mexico (RSMX)
Av. Prol. Americas No. 1600, 2° Piso
Col. Country Club
Guadalajara, Jal.
Mexico CP, 44610

siehe / see RomaniaMoldavia

ROHDE & SCHWARZ NEDERLAND B.V.
Perkinsbaan 1
3439 ND Nieuwegein

Nichecom
1 Lincoln Ave.

Tawa, Wellington

siehe / see MexicoNicaragua

Ferrostaal (NIGERIA) Ltd.
P.O. Box 72021
27/29 Adeyamo Alkaija Street
Victoria Island
Lagos

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R&S NRP-Z11/-Z21 Table of Contents Chapter 1

Table of Contents

1 Putting into Operation ..................................................................................................... 1.1

Unpacking the sensor ..................................................................................................................... 1.1

Connecting the sensor....................................................................................................................1.1

Operation with the R&S NRP basic unit..................................................................................... 1.2

Connecting the sensor to the R&S NRP basic unit........................................................ 1.2

Connecting the sensor to the DUT................................................................................. 1.2

PC control................................................................................................................................... 1.2

Hardware and software requirements............................................................................1.2

Operation via the Active USB Adapter R&S NRP-Z3 .................................................... 1.4

Operation via the Passive USB Adapter R&S NRP-Z4.................................................. 1.5

Connecting the sensor to the DUT................................................................................. 1.5

1137.7406.12 I-1.1 E-2

Figs. Chapter 1 R&S NRP-Z11/-Z21

Figs.

Fig. 1-1 Displaying the total available power of a USB port..........................................................1.3

Fig. 1-2 Configuration with Active USB Adapter R&S NRP-Z 3 .....................................................1.4

Fig. 1-3 Changing the primary adapter..........................................................................................1.4

Fig. 1-4 Configuration with Passive USB Adapter R&S NRP-Z4 ..................................................1.5

1137.7406.12 I-1.2 E-2

R&S NRP-Z11/-Z21 Unpacking the sensor

1 Putting into Operation

Follow the instructions below precisely to prevent damage to the sensor – particularly
when you are putting it into operation for the first time.

Unpacking the sensor

Remove the sensor from its pac king and chec k that nothing is miss ing. Inspect all item s for dam age. If
you discover any damage, inf orm the carrier responsible im mediately and keep t he packing to su pport
any claims for compensation.

It is also best to use the original packing if the sensor is to be shipped or transported at a later date..

The sensor contains c omponents wh ich can be destroy ed by e lectrostatic discharges . To
prevent this happening, nev er touch the inner conductor of the RF connector and never
open the sensor.

Connecting the sensor

To prevent EMI, the sensor must never be op erated with its enclosur e wholly or partially
removed. Only use shielded cables that meet the relevant EMC standards.

Never exceed the maximum RF power limit. Even brief overloads can destroy the sensor.
In many cases, the RF connector o nly requires manua l tightening. Howev er, for maximal

measurement accuracy, the RF connector must be tightened using a torque wrench with a
nominal torque of 1.36 Nm (12" lbs.).

1137.7406.12 1.1 E-2

Connecting the sensor R&S NRP-Z11/-Z21

Operation with the R&S NRP basic unit

Connecting the sensor to the R&S NRP basic unit

The sensor can be connected to the R&S NRP basic unit when it is in operation. The interface
connector must be inserted, red marking upwards, into one of the R&S NRP basic unit’s sensor
connectors. When the sensor is connected, it is detected by the R&S NRP basic unit and initialized.

Connecting the sensor to the DUT

The Sensor R&S NRP-Z11/-Z21 has a male N connector and so can be connected to any standard
female N connector. Using light pressure, and keeping the male N connector perpendicular, insert it into
the female N connector and tighten the N connector locking nut (right-hand thread).

PC control

Hardware and software requirements

The following requirements must be met if the sensor is to be controlled by a PC via an interface
adapter:

• The PC must have a USB port.

• The PC’s operating system must support the USB port. This is the case with Windows™ 98,

Windows™ ME, Windows™ 2000, Windows™ XP and more recent versions of the Windows™
operating system.

• The USB device drivers in the supplied NRP Toolkit software package must be installed.
If these requirements are m et, the sensor can be controlled using a suitable applicat ion program such

as the NrpFlashup pr ogram contained in the NRP Toolk it (includes the modules Power Viewer, USB
Terminal, Firmware Update and Update S-Parameters).

When you insert the CD-RO M s up pl ied with the R&S NRP, the NRP T oolkit is automatically installed on
your PC. The rest of the procedure is self-explanatory.

The sensor can be powered in two ways:

• Self-powered from a separate power supply via the Active USB Adapter R&S NRP-Z3.

• Bus-powered from the PC or a USB hub with its own power supply (self-powered hub) via the

Active USB Adapter R&S NRP-Z3 or via the Passive USB Adapter R&S NRP-Z4.

As the sensor is a high-power device, there is no guarantee that it can be powered from all types of
laptop or notebook in the bus-powered m ode. T o be sur e, you should determ ine t he c urrent at the US B
connectors beforehand:

1137.7406.12 1.2 E-2

R&S NRP-Z11/-Z21 Connecting the sensor

• In the Windows™ start menu, select Settings – Control Panel

• Select the System icon

• Select the Hardware tab

• By clicking on the button with that name, start the Device Manager

• Open USB Controller (all USB controllers, hubs and USB devices are listed here)

• Double-click on USB Root Hub or select Properties in the context menu (use the

right-hand mouse button)

• Select the Power tab (Fig. 1-1). If the hub is self-powered and the total power
available is, as indicated by Hub Information, 500 mA per port, high-power dev ices
can be connected.

Fig. 1-1 Displaying the total available power of a USB port

If you have any doubts , ask the manufacturer if the USB port on your lap top or notebook can handle
high-power devices.

1137.7406.12 1.3 E-2

Connecting the sensor R&S NRP-Z11/-Z21

Operation via the Active USB Adapter R&S NRP-Z3

Figure 1-2 shows the configuration with the Active USB Adapter R&S NRP-Z3, which also makes it
possible to feed in a trigger signal for the Timeslot and Scope modes. T he order i n wh ich the cables are
connected is not critical.

Signal sourc

G

e

NRP−Z11/−Z21

NRP−Z3

U

SB

PC with U
ho

SB

st interface

~

AC supply

onnection

c

Tri

gger sourc
(

opti

G

TTL /

CMO

Fig. 1-2 Configuration with Active US B Adap ter R &S NR P- Z3

The plug-in power suppl y for the R&S NRP-Z3 can be powered from a single-phase AC sour ce with a
nominal voltage range of 100 V to 240 V and a nominal frequenc y between 50 Hz and 60 Hz. The p lug­in power supply autosets to the applied AC voltage. No manual voltage selection is required.

S

onal)

e

P

BNC cable

(not supplied with NRP−Z3)

lug−in powe

s

(

opti

onal, supplied

with NRP−Z3)

r

upply

The plug-in power su ppl y com es with f our pr im ary adapter s fo r Eur ope, the UK, the USA an d A ustral ia.
No tools of any kind are required to change the primary adapter. The adapter is pulled out manually and
another adapter inserted until it locks (Fig. 1-3).

Fig. 1-3 Changing the primary adapter

1137.7406.12 1.4 E-2

R&S NRP-Z11/-Z21 Connecting the sensor

The plug-in power supply is short-c ircuit-pr oof and has an intern al fuse. It is not p ossible to r eplace th is
fuse or open the plug-in power supply.

The plug-in power supply is not intended for outdoor use.
Keep within the temperature range of 0°C to 50°C.
If there is any condensation on the plug-in power supply, dry it off before connecting it to

the AC supply.

Operation via the Passive USB Adapter R&S NRP-Z4

Fig. 1-4 is a schematic of the measurem ent setup. The order in which the cables are con nected is not
critical.

Signal Sourc

G

e

NRP−Z11/−Z21

NRP−Z4

U

SB

PC with U
host Interfac

SB

e

~

Fig. 1-4 Configuration with Passive USB Adapter R&S NRP-Z4

Connecting the sensor to the DUT

See the section “Operation wit h the R &S NRP basic unit” f or inform ation on how to c onnect the sens or
to the DUT.

1137.7406.12 1.5 E-2

R&S NRP-Z11/-Z21 Table of Contents Chapter 2

Table of Contents

2 Virtual Power Meter...........................................................................................................2.1

Overview...........................................................................................................................................2.1

Menus.........................................................................................................................................2.3

1137.7406.12 I-2.1 E-2

List of Figs. and Tables Chapter 2 R&S NRP-Z11/-Z21

Figs.

Fig. 2-1 Power Viewer virtual power meter ..................................................................................2.1

Tables

Table 2-1 Virtual power meter keys..................................................................................................2.2

Table 2-2 Virtual power meter entry fields........................................................................................ 2.2

1137.7406.12 I-2.2 E-2

R&S NRP-Z11/-Z21 Overview

2 Virtual Power Meter

You will find the NrpFlashup program for controlling sensors with a PC under Windows™ on the
CD-ROM that accompanies the sens or. The program compr ises several m odules which c an be star ted
centrally via the Windows™ start-menu entry NRP Toolkit.

This section describes the Power Viewer program m odule. This is a virtual power m eter which only
uses a cut-down set of the sens or’s functions. This m eans that after an extrem ely brief familiarization
period, the user can measure the average power of modulated signals.

The other modules in NrpFlashup are described in Chapter 3 of the operatin g manual (Terminal and

Update S-Parameters modules) or in the service manual (Firmware Update module).

Overview

Start the virtual power meter using the NRP Toolkit – Power Viewer start-menu entry. The Power
Viewer program window is displayed (Fig. 2-1) .

Fig. 2-1 Power Viewer – virtual power meter
The result displa y occupies most of the program window. T he result, unit and additional s ensor status

information are displayed. The serial number of the sensor is displayed in the bottom right. The program
window also contains animated buttons and entry fields (see Table 2-1 and Table 2-2).

1137.7406.12 2.1 E-2

Overview R&S NRP-Z11/-Z21

Table 2-1 Virtual power meter keys

Button Function Key combination

Exit Terminates the program. The current settings are saved and recalled the

W Selects Watt as the display unit. Alt + W

dBm Selects dBm as the display unit. Alt + M

Zero Zeroes the sensor. Alt + Z

dB Selects dB as the display unit. This is the log of the ratio of the measured

¨

M2Ref Makes the current measured value the reference value for the relative

Offset
On/Off

Averaging
Man/Auto

Apply

next time the program is started.

value to the reference value.

Selects % as the display unit. The difference between the measured value
and the reference value is expressed as a percentage.

display units dB and %.

Turns the offset correction for the sensor on or off. If the offset correction is
Off, the Offset/dB entry field has a grey background.

Turns auto-averaging on or off. When auto-averaging is on, the Length entry
field has a grey background; the current averaging factor is displayed.

Accepts edited numerical values in the Frequency/Hz, Value/dB and
Length entry fields and transfers them to the sensor.

Alt + E

Alt + B

Alt + %

Alt + R

Alt + N

Alt + T

Alt + A
or Enter key

Table 2-2 Virtual power meter entry fields

Entry field Function

Frequency/Hz Frequency of the RF carrier in Hertz.

Value/dB Attenuation in dB of the twoport connected to the sensor. The valid range is –100 to 100. The offset

Length Length of the averaging filter (= averaging factor). The valid range is 1 to 65536. Averaging must be set

correction must be activated beforehand with the Offset On/Off button if this entry field is to be edited.

to manual with the Averaging Man/Auto button if this entry field is to be edited.

Scientific notat ion can a lso be used for the e ntry fields . If an i nvalid e ntry is m ade, an error m essage is
output. An edited num er ical val ue wil l not b e trans fer red to the s ensor u nles s you use the Apply button
or the Enter key to terminate the entry.

1137.7406.12 2.2 E-2

R&S NRP-Z11/-Z21 Overview

Menus

The menu bar can be used to call less frequently used functions.

File Start Log ...

Stop Log

View Display Refresh Rate

Colours

Result
Unit
Edit
Button

Resolution

Opens a file-selection dialog to specify the path and name
of the log file. Clicking the Save button starts the
recording. All displayed values are written line-by-line to
the log file with the date (format: YY/MM/DD) and time
(format: hh:mm:ss.ms). Example:

-22.51 dBm (03/02/25 15:37:25.310)

Ends the log-file recording.
Opens a dialog box to

adjust the display refresh
rate. The time in
milliseconds between two
refresh operations is
entered. The default
setting is 200 ms.

Opens a dialog box to select the background colour for

• the result,

• the unit,

• the text in the number fields or

• the key labelling.

For setting the result
resolution. If auto­averaging has been
selected, a higher
resolution leads to a
greater averaging factor,
which means a longer
result settling time.

Options Read Sensor Status …

Read Error Queue …

1137.7406.12 2.3 E-2

Reads the current sensor
status. A parameter list is
output.

Reads the error queue. All
the error messages that
have been issued since
the last call are read line­by-line. A tick before this
menu entry indicates that
an error has occurred.

Overview R&S NRP-Z11/-Z21

Simulation …

Reset Sensor

Help Contents

About

For trying out the functions
of the virtual power meter
without actually connecting
a sensor. The display
alternates between

Measurement Value 1 &
Measurement Value 2

with a period given by
Interval. Simulation can
be activated immediately
with the Activate check
box.

Initializes the sensor. Any previous zeroing remains valid.
Opens the table of contents for the online-help facility.
Displays information about the program version used, etc.

1137.7406.12 2.4 E-2

R&S NRP-Z11/-Z21 Table of Contents Chapter 3

Table of Contents

3 Manual Operation...............................................................................................................3.1

Program module "Terminal"........................................................................................................... 3.1

Main control elements................................................................................................................ 3.1

Menus.........................................................................................................................................3.3

Program module "Firmware Update" ............................................................................................ 3.6

Program module "Update S-Parameters".....................................................................................3.6

Fundamentals ............................................................................................................................3.6

Procedure...................................................................................................................................3.9

1137.7406.12 I-3.1 E-2

List of Figs. and Tables Chapter 3 R&S NRP-Z11/-Z21

Figs.

Fig. 3-1 Sending commands using the Input field................................................................................. 3.1

Fig. 3-2 Sending commands using command files................................................................................ 3.2

Fig. 3-3 Dialog window for loading an s-parameter table...................................................................... 3.9

Fig. 3-4 Dialog window for loading the backup file of a calibration data set........................................3.10

Tables

Table 3-1 Buttons assigned to the Input field.......................................................................................3.2

Table 3-2 Buttons assigned to the Command File field.......................................................................3.2

Table 3-3 Buttons assigned to the Output field....................................................................................3.3

Table 3-4 Uncertainties of the s-parameter test system (example)......................................................3.7

Table 3-5 Interpolated uncertainties of measurement frequencies for s-parameters (example)..........3.7

1137.7406.12 I-3.2 E-2

R&S NRP-Z11/-Z21 Program module "Terminal"

3 Manual Operation

The previous secti on describes the Power Vi ewer program m odule supplied with the instrument. This
module simplifies the most frequently used function of a power meter – measuring the average power of
an RF signal of almost any modulation. O ther pr ogr am modules are also par t of the s up pl ied equipment
and can be selected in the Start menu:

• Power Viewer: A detailed description of this virtual power meter module is provided in section 2.

• Terminal: Program module for sending comm ands and comm and seque nces to the s ensor an d for

displaying measurement results, status information and other data from the sensor

• Firmware Update: Program module for updating the sensor firmware

• Update S-Parameters: Program module for loading an s-parameter table into the sensor

Program module "Terminal"

Main control elements

With the USB term inal, com mands and com m and sequences can be sent to the sens or in two diff erent
ways:

• Commands are entered in the Input field (Fig. 3-1). Consecutive commands can be entered as
separate lines, one below the other. The butt ons associated with the Input field are described in
Table 3-1.

• Commands or command sequences are stored in command files. Command files are created with a

text editor, for instance, and then stored. They can be cal led as often as required (Fig. 3-2) . The
buttons of the Command File field are described in Table 3-2.

Fig. 3-1 Sending commands using the Input field

1137.7406.12 3.1 E-2

Program module "Terminal" R&S NRP-Z11/-Z21

Fig. 3-2 Sending commands using command files

Table 3-1 Buttons assigned to the Input field

Button Function Key combination

Send

Loop

Clear

Font key

Colour key

Sends the content of the Input entry field to the sensor.

With Loop the command or command sequence is cyclically sent. Pressing
the button again terminates the cyclic transmission. The repetition rate is set
in a dialog window that can be opened with View - Loop...

Clears the content of the Input field.

Opens a dialog window where the font for the Input field can be selected.

Opens a dialog window where the background colour of the Input field can
be selected.

Alt + S

Alt + L

Alt + R

Table 3-2 Buttons assigned to the Command File field

Button Function Key combination

Send Sends the content of the command file to the sensor. Alt + E

Loop

With Loop the command or command sequence is cyclically sent. Pressing
the button again terminates the cyclic transmission. The repetition rate is set
in a dialog window that can be opened with View - Loop...

Alt + O

History

Edit Opens the selected command file in the Windows™ text editor. Alt + D

… Opens a file opening dialog for selecting the command file.

Opens a window for editing the command file name in the Command File
field.

Alt + H

1137.7406.12 3.2 E-2

R&S NRP-Z11/-Z21 Program module "Terminal"

A command line st arting with a tab, a blank or a s pecial character is cons idered a comment and not
forwarded to the sensor.

Measurement results, parameters and status inform ation returned by the sensor ar e displayed in the
Output field.

Table 3-3 Buttons assigned to the Output field

Button Function Key combination

Clear

Copy

Font button

Colour button

Clears the content of the Output field

Copies the content of the Output field to the clipboard. (Another possiblity:
mark the desired information in the output window with the mouse cursor,
press the right mouse key or Ctrl+C and then copy the selected text to the
clipboard using the menu item Copy in the opened context menu.)

Opens a dialog window where the font for the Output field can be selected.

Opens a dialog window where the background colour of the Output field can
be selected.

Alt + A

Alt + Y

Close the USB terminal with OK.

Menus

View Post Filter … Opens the Out put Postfilter dialog window where the lines stored in

the input buffer can be filtered according to different criteria.

Filter criteria:
Only + Starting with: Only lines starting with the entered character

string are displayed.
Not + Starting with: Only lines not starting with the entered character

string are displayed.
Only + Containing: Only lines containing the entered character strin g

are displayed.
Not + Containing: Only lines not containing the entered character

string are displayed.
Lines not matching the specific filter criterion are blanked but not

cleared.

1137.7406.12 3.3 E-2

Program module "Terminal" R&S NRP-Z11/-Z21

Output Postfilter

Filtering is starte d with Apply. The number of lines matching the f ilter
criterion is displayed in the Linecounter field. If Open on startup is
active, the Output Po stfilter dialog is autom atically opened when the
terminal is started. The dialog window is closed with OK.

.

Response
Time …

Opens the Response tim e dialog window where the response tim e of
the sensor can be set.

Current indicates the time elapsed between dispatch of the last
command and receipt of an acknowledgement from the sensor.
When the Max button is clicked, the response times exceeding the
value in the limit / ms field are recorded. When the Min button is
clicked, the respons e times within the valu e in the limit / ms field ar e
recorded.

If Trigger on first incoming response is active, the time
measurement is terminated as s oo n as t he f irs t r espons e ar ri ves af ter a
command is sent. If T rigger on response matching filter settings is
active, the time measurement is terminated as soon as the first
response matching the filter criterion in the
window is received.

If Open on startup is active, the Response Time dialog is
automatically displayed when the Terminal module is started. The
dialog window is closed with OK.

Loop … Opens the Loop controls dialog

window where the cyclic transfer of
commands and command sequences
can be controlled.

In the Delay / ms field, the time
interval for the cyclic transfer is
specified in millisec onds .

The number of completed transfer
cycles is displayed in the Counter
field. If Open on startup is active, the
Response time dialog is
automatically opened when the
Terminal module is started. The
dialog window is closed with OK.

dialog

1137.7406.12 3.4 E-2

R&S NRP-Z11/-Z21 Program module "Terminal"

Options Protocol Mode

Hex Mode

Auto Delete With this option active, the Output

Auto Scroll

LF at EOT

Delete on Start With this option active, the Output

Send as Hex

In this mode, a time stamp is adde d to
each response block.

In this mode, the response blocks
from the sensor are displayed in
hexadecimal format.

field is automaticall y cle ared whe n the
Send button is pressed.

With this option act ive, older items in
the Output field are automatically
shifted upward and off the display if
space is required for new values.

With this option act ive, a line f eed is
appended to each response block
from the sensor.

field is automaticall y cle ared whe n the
Terminal module is started.

With this option act ive, the text in the
Input field is interpreted as a
hexadecimal character sequence.

Advanced … Opens a dialog window where the buf fer size for the Output field can

Help Contents

About

be set.

Opens the table of contents for the online help.
Displays information about the program version, etc.

1137.7406.12 3.5 E-2

Program module "Firmware Update" R&S NRP-Z11/-Z21

[

]

[

]

Program module "Firmware Update"

A detailed description of the program module for firmware updates is provided in the Service Manual.

Program module "Update S-Parameters"

Fundamentals

With the Sensor R&S NRP-Z11/-Z21 the influence of any twoport connected to the input on the
measurement res ult can be correc ted by wa y of calcu lation. A precondit ion is that a complete set of s­parameters of the t woport is avai lable in the f requency r ange in questio n. The set of calibratio n data in
the R&S NRP-Z11/-Z21 therefore includes an s-parameter table with up to 1000 measurement
frequencies. The real and the imaginary part of each frequency as well as the uncertainty of

s-parameters
s-parameter table ar e independent of the calibrat ion frequencies, they can be s et so that the t woport

frequency range of interest is optimally covered. The real and the imaginary parts between these
measurement frequencies are linearly interpolated, while the more substantial measurement uncertainty
at the two neighbouring frequency points is used for calculating the uncertainty of the measurement
result. Below the f irst and above the last meas urement frequency, the values of the first and the last
measurement frequency are used, respectively.

s , 12s , 21s and 22s can be stored. Since the measurement frequencies in the

11

The NrpFlashup progr am ( menu item Update S-Parameters) is used for loading an s-param eter table.
To ensure compatibility with a great number of network analyzers, NrpFlashup can process
measurement data f iles in S2P form at. All standard frequenc y units (Hz, k Hz, MHz, GH z) and displa y
formats (real and imaginary part, linear magnitude and phase, magnitude in dB and phase) are
supported. The only restriction is that a reference impedance of 50 Ω must be used for the
s-parameters. Other noise parameters in the measurement data file are not evaluated.

Structure of the S2P measurement data file:

1. The option line has the following format:

# [<frequency unit>] [<parameter>] [<format>] [<R n>]
# identifies the option line.
The <frequency unit> m ay be Hz, kHz, MH z or GH z. If a f requenc y unit is n ot specif ied, GH z is
implicitly assumed.
If a parameter is s pecified, S m ust be used i n <parameter> for s-param eter files . If a par am eter
is not specified, S is implicitly assumed.
The <format> m a y be MA ( lin ear magnitude and phase in degree), DB ( magnitude in dB, phase
in degree) or RI (real and imaginary part). If a format is not specified, MA is implicitly assumed.
R is optional and followed by the reference impedance in Ω. If an entry is made for R, R50 m us t
be specified. If no entry is made, R50 is implicitly assumed.
The option line should therefore read:
# [HZ | KHZ | MHZ | GHZ] [S] [MA | DB | RI] [R 50]

2. The measurement frequencies in ascending order are specified as follows:

() () () ()

()

where

() ()

fs is the specified display format for the option line.

ijk

fsfs arg (display format for linear magnitude and phase in degree) or

ijkijk

fsfsfsfsf

,

iiiii

22122111

() ()

()

1137.7406.12 3.6 E-2

fsfs arg lg20⋅ (display format for magnitude in dB and phase in degree)

ijkijk

()

fsfs Im Re (display format for real and imaginary part)

ijkijk

R&S NRP-Z11/-Z21 Program module "Update S-Parameters"

3. Comments: Any line starting with an exclamation mark (!) is interpreted as a comment line.

To characterize the measurement uncertainty of the s-parameter test system, another data file can
optionally be creat ed. Without this file, the m easurement uncertaint y cannot be correctly c alculated in
the sensor. The syntax of the u nc ertai nty data file is sim ilar to that of the S2P data f ile but U is s pec if ie d
as <Parameter> in the option line so that the option line reads # Hz U for frequencies in Hz.
The measurement frequencies must not be identical to those of the S2 P measurement data files. In
most cases a few entries will be sufficient to characterize the measurement uncertainty of the s­parameter test system. An s- parameter uncertainty as high as that of the neighbouring m easurement
frequencies of the uncertain ty data file is th en selecte d. If differ ent values are available, th e higher on e
is chosen. This is illustrated in the example below:

Table 3-4 Uncertainties of the s-parameter test system (example)

f in GHz unc [sik(f)]

0.1 0.01

1.0 0.01

1.1 0.005

10.0 0.005

10.1 0.01

40.0 0.01

Table 3-5 Interpolated uncertainties of measurement frequencies for s-parameters (example)

f in GHz unc [sik(f)]

0.9 0.01

0.95 0.01

1.0 0.01

1.05 0.01

1.1 0.005

1.15 0.005

1.2 0.005

At 1.05 GHz, the higher uncertainty of the two adjacent 1.0 GHz and 1.1 GHz measurement
frequencies is entered in the s-param eter table. If an u ncertainty of 0.0 05 is desired f or all freque ncies
above 1.0 GHz, the first measurem ent frequency in the uncerta inty data file m ust above 1.0 GHz, e.g.

1.000001 GHz.

1137.7406.12 3.7 E-2

Program module "Update S-Parameters" R&S NRP-Z11/-Z21

Structure of the uncertainty data file:

1. The option line has the following format:

# [<frequency unit>] <parameter> [<format>] [<R n>]
# identifies the option line.
The <frequency unit> m ay be Hz, kHz, MH z or GH z. If a f requenc y unit is n ot specif ied, GH z is
implicitly assumed.
U must be specified for <p arameter> i n uncertai nty data files. If a param eter is not spec ified, S
is implicitly assumed and as a result an error message is triggered.
<format> is ignored in uncertainty measurement files; the entry is therefore irrelevant.
R is optional and followed by the reference impedance in Ω. If an entry is made for R, R50 m us t
be specified. If no entry is made, R50 is implicitly assumed.
The option line should therefore read:
# [HZ | KHZ | MHZ | GHZ] U [MA | DB | RI] [R 50]

2. Measurement frequencies in ascending order are specified in the following form:

()

[]

The s-parameters uncertainties are forwarded as follows:

• as extended absolute uncertaint ies (
and

s , for instance 0.015,

22

• as extended uncertainties (
and

s , for instance 0.015.

12

()

[]

()

[]

2=k ) in dB for the magnitude of transmission parameters

()

[]

fsfsfsfsf

unc unc unc unc .

iiiii

22122111

2=k ) for the magnitude of reflection parameters

s

11

s

21

3. Comments: Any line starting with an exclamation mark (!) is interpreted as a comment line.
Two additional valu es must be specified when th e s-parameters are loaded: th e lower and the up per

nominal measurem ent lim it of the sens or-t woport c om bination . If s -param eter corr ection is ac tive, th ese
values are transferred by the sensor in response to SYSTem:INFO? The values cannot always be
derived from the lo wer or upper m easur ement lim it of the s ensor alo ne and from the loss or g ain of the
preconnected twoport. The upper measurement limit of the sensor-twoport combinat ion may also be
limited by the twop ort’s maximum power-handling capacit y. Furthermore, the lower m easurement limit
may be raised not only by the loss but also by the inherent noise of the twoport. For this reason,
NrpFlashup allows these values to be entered.

The upper nominal measurement limit of the sensor-twoport combination entered when
loading the s-parameters should be carefully specified, as automatic test systems may
evaluate it and an incorrect value may cause the sensor and/or the twoport to be
overloaded.

1137.7406.12 3.8 E-2

R&S NRP-Z11/-Z21 Program module "Update S-Parameters"

Procedure

To load an s-parameter table into the calibration set of the sensor, proceed as follows:

1. Connect the sensor to the USB port of the PC and start NrpFlashup.

2. Activate Update S-Parameters in the menu. The corresponding dialog window is opened (Fig.
3-3).

3. Under S-Parameter File enter the search path and the name of the S2P file containing the
parameters. Press the Browse... button to open a file- opening dialog wh ere the S2P meas urement
data file can be easily selected.

4. Under Uncertainty File enter the search path and the nam e of the measurement uncertaint y file
containing the measurement uncertainty of the s-parameter test system. Press the Browse...
button to open a file-opening dialog where the measurement uncertainty file can be easily selected.

5. Enter the upper and lower nominal measurement limit of the sensor-twoport combination in the
Lower Power Limit and Upper Power Limit fields.

6. Enter a name for the loaded s-parameter set in the S-Parameter Device Mnemonic field. This
name can later be quer ied with SYSTem:INFO? "SPD Mnemonic" and is displayed on the NRP
basic unit when s-parameter correction is switched on.

7. Activate S-Parameter Correction on by Default if the SENSe:CORRection:TRANsmission switch
should be automatically set to ON when the sensor is put into operation.

8. Press Start for loading. (The dia log is closed with OK and the set param eters are retained. W hen

the dialog is exited with Cancel, all parameter modifications are ignored.)

Fig. 3-3 Dialog window for loading an s-parameter table
During loading, the current calibr ation data set of the sensor is overwritten. To be on the saf e side, a

backup copy of the current calibration data set is therefore automatically stored before s-parameters are
loaded. The names of the backup files have the struc ture <batch number>_<da te><time>.bak, where
<batch number> is the batch number of the sensor, <date> the date of the s-parameter update in
yymmdd format and <time> the time of the s-parameter update in the format hhmmss.

Store the automatically created backup files on a separate data medium (e.g. diskette,
CD-ROM or network drive) and, if required, assign an meaningful name to them to
simplify reloading. With the aid of t hese files, a pr eviously us ed calibrati on data set o f the
sensor can be restored.

1137.7406.12 3.9 E-2

Program module "Update S-Parameters" R&S NRP-Z11/-Z21

To reload the backup file of a calibration data set into the sensor, proceed as follows:

• Press the Restore... button. The Restore S-Parameters window is op ened (Fig. 3-4).

• Enter the search path and the name of the backup file in the Backup File field. Pr es s the Browse...

button to open a dialog where the backup file can be easily selected.

• Press OK to start the restore procedure. (W ith Cancel the dialog window is exited without data

being restored).

Fig. 3-4 Dialog window for loading the backup file of a calibration data set

1137.7406.12 3.10 E-2

R&S NRP-Z11/-Z21 Table of Contents Chapter 5

Table of Contents

5 Remote Control – Fundamentals................................................................................5.1

1137.7406.12 I-5.1 E-3

R&S NRP-Z11/-Z21 Remote Control – Fundamentals

5 Remote Control – Fundamentals

Rohde & Schwarz recommends to util ize th e VXI P lug & Play Driver f or the r em ote contro l of R& S NRP
power sensors. T his driver c an b e found on the CD-RO M sup plie d with t he s ensor or do wnloaded in its
most recent version via the internet (http://rohde-schwarz.com/).

The old remote contro l interface provided by the Dy namic Link Library Nrp Control.dll is not developed
further, but remains on the CD-ROM and can be downloaded via the internet.

1137.7406.12 5.1 E-3

R&S NRP-Z11/-Z21 Table of Contents Chapter 6

Table of Contents

6 Remote Control – Commands...................................................................................... 6.1

Notation ............................................................................................................................................6.1

Commands as per IEEE 488.2 ........................................................................................................ 6.2

*IDN? – IDentification Query......................................................................................................6.2

*RST – Reset .............................................................................................................................6.2

*TRG – Trigger........................................................................................................................... 6.2

*TST? – Self Test Query............................................................................................................ 6.2

SCPI Commands.............................................................................................................................. 6.3

CALibration................................................................................................................................. 6.3

CALibration:DATA[?] <calibration data set as definite length block> ..........................6.3

CALibration:DATA:LENGth?..........................................................................................6.3

CALibration:ZERO:AUTO[?] OFF | ON | ONCE .......................................................... 6.4

SENSe (Sensor Configuration).................................................................................................. 6.5

SENSe:AV E Ra g e: CO U Nt [? ] 1 to 65536...................................................................... 6.7

SENSe:AVERage:COUNt:AUTO[?] OFF | ON | ONCE............................................... 6.7

SENSe:AVERage:COUNt:AUTO:MTIMe[?] 1.0 to 999.99...........................................6.8

SENSe:AVERage:COUNt:AUTO:NSRatio[?] 0.0001 to 1.0 ........................................6.8

SENSe:AVERage:COUNt:AUTO:RESolution[?] 1 to 4................................................ 6.8

SENSe:AVERage:COUNt:AUTO:SLOT[?] 1 to <SENSe:POWer:TSLot:AVG:COUNt>.....6.8

SENSe:AVERage:COUNt:AUTO:TYPE[?] RESolution | NSRatio...............................6.9

SENSe:AVERage:RESet ............................................................................................... 6.9

SENSe:AVERage:STATe[?] OFF | ON........................................................................ 6.9

SENSe:AVERage:TCONtrol[?] MOVing | REPeat.......................................................6.9

SENSe:CORRection:DCYCle[?] 0.001 to 99.999...................................................... 6.10

SENSe:CORRection:DCYCle:STATe[?] OFF | ON ................................................... 6.10

SENSe:CORRection:OFFSet[?] –200.0 to 200.0 ......................................................6.10

SENSe:CORRection:OFFSet:STATe[?] OFF | ON.................................................... 6.10

SENSe:CORRection:SPDev:STATe[?] OFF | ON ..................................................... 6.11

SENSe:FREQuency[?] 10.0e6 to 8.0e9 (NRP-Z11) or 18.0e9 (NRP-Z21) ............... 6.11

SENSe:FUNCtion[?] <sensor_function>....................................................................6.12

SENSe:POWer:AVG:APERture[?] 0.0001 to 0.3.......................................................6.13

SENSe:POWer:AVG:B UF Fe r : SI ZE [? ] 1 to 1024.......................................................6.13

SENSe:POWer:AVG:BUFFer:STATe[?] OFF | ON.................................................... 6.14

SENSe:POWer:AVG:SMOothing:STATe[?] OFF | ON..............................................6.14

SENSe:POWer:BURSt:DTOLerance[?] 0.0 to 0.003.................................................6.14

SENSe:POWer:TSLot:AVG:COUNt[?] 1 to 128......................................................... 6.15

SENSe:POWer:TSLot:AVG:WIDTh[?] 0.0001 to 0.1................................................. 6.15

SENSe:RANGe[?] 0 to 2 ............................................................................................6.15

SENSe:RANGe:AUTO[?] OFF | ON .......................................................................... 6.16

SENSe:RANGe:AUTO:CLEVel[?] –20.0 to 0.0..........................................................6.16

SENSe:SAMPling[?] FREQ1 | FREQ2.......................................................................6.16

SENSe:SGAMma:CORRection:STATe[?] OFF | ON................................................. 6.16

SENSe:SGAMma:MAGNitude[?] 0.0 to 1.0............................................................... 6.17

1137.7406.12 I-6.1 E-2

Table of Contents Chapter 6 R&S NRP-Z11/-Z21

SENSe:SGAMma:PHASe[?] –360.0 to 360.0............................................................6.17

SENSe:TRACe:AVERage:COUNt[?] 1 to 65536....................................................... 6.17

SENSe:TRACe:AVERage:COUNt:AUTO[?] OFF | ON | ONCE................................6.17

SENSe:TRACe:AVERage:COUNt:AUTO:MTIMe[?] 1.0 to 999.99............................ 6.18

SENSe:TRACe:AVERage:COUNt:AUTO:NSRatio[?] 0.0001 to 1.0 ......................... 6.18

SENSe:TRACe:AVERage:COUNt:AUTO:RESolution[?] 1 to 4................................. 6.18

SENSe:TRACe:AVERage:COUNt:AUTO:POINt[?] 1 to <SENSe:TRACe:POINts>..6.18

SENSe:TRACe:AVERage:COUNt:AUTO:TYPE[?] RESolution | NSRatio................ 6.19

SENSe:TRACe:AVERage:STATe[?] OFF | ON.........................................................6.19

SENSe:TRACe:AVERage:TCONtrol[?] MOVing | REPeat........................................ 6.19

SENSe:TRACe:MPWidth?...........................................................................................6.19

SENSe:TRACe:OFFSet:TIME[?] – (<TRIGger:DELay> + 0.005) to 100.0................ 6.20

SENSe:TRACe:POINts[?] 1 to 1024..........................................................................6.20

SENSe:TRACe:REALtime[?] OFF | ON..................................................................... 6.20

SENSe:TRACe:TIME[?] 0.0001 to 0.3.......................................................................6.20

SENSe:TIMing:EXCLude:STARt[?] 0.0 to 0.1 ........................................................... 6.20

SENSe:TIMing:EXCLude:STOP[?] 0.0 to 0.003........................................................ 6.21

SYSTem................................................................................................................................... 6.22

SYSTem:INFO? [Item] ................................................................................................. 6.22

SYSTem:INITialize....................................................................................................... 6.23

SYSTem:MINPower? ...................................................................................................6.24

SYSTem:TRANsaction:BEGin ..................................................................................... 6.24

SYSTem:TRANsaction:END........................................................................................6.24

TEST........................................................................................................................................ 6.25

TEST:SENSor? ............................................................................................................6.25

TRIGger ...................................................................................................................................6.26

ABORt .......................................................................................................................... 6.26

INITiate:CONTinuous[?] OFF | ON ............................................................................ 6.26

INITiate:IMMediate....................................................................................................... 6.27

TRIGger:ATRigger:STATe[?] OFF | ON .................................................................... 6.27

TRIGger:COUNt[?] 1 to 2 × 10

TRIGger:DELay[?] x to 100.0.....................................................................................6.28

TRIGger:DELay:AUTO[?] OFF | ON..........................................................................6.28

TRIGger:HOLDoff[?] 0.0 to 10.0 ................................................................................ 6.28

TRIGger:HYSTeresis[?] 0.0 to 10.0 ........................................................................... 6.28

TRIGger:IMMediate...................................................................................................... 6.28

TRIGger:LEVel[?] x to y ............................................................................................. 6.29

TRIGger:SLOPe[?] POSitive | NEGative ................................................................... 6.29

TRIGger:SOURce[?] BUS | EXTernal | HOLD | IMMediate | INTernal...................... 6.29

9

..................................................................................6.27

List of Remote-Control Commands.............................................................................................6.30

1137.7406.12 I-6.2 E-2

Figures and List of Tables Chapter 6 R&S NRP-Z11/-Z21

Figs.

Fig. 6-1 Effect of SENSe:POWer:BURSt:DTOLerance............................................................... 6.15

Fig. 6-2 Effect of SENSe:TIMing:EXCLude:STARt and :END in the Burst Average mode......... 6.21

Fig. 6-3 Effect of SENSe:TIMing:EXCLude:STARt and :END in the Timeslot mode.................. 6.21

Tables

Table 6-1 Commands of the CALibration system.............................................................................6.3

Table 6-2 Commands of the SENSe system....................................................................................6.5

Table 6-3 Measurement modes......................................................................................................6.12

Table 6-4 Optimum selection of the sampling window size (N = 1, 2, 3, …).................................. 6.13

Table 6-5 Commands of the SYSTem system............................................................................... 6.22

Table 6-6 Meaning of Item in the SYSTem:INFO? command........................................................ 6.22

Table 6-7 Commands of the TEST system .................................................................................... 6.25

Table 6-8 Commands of the TRIGger system................................................................................6.26

Table 6-9 List of remote-control commands................................................................................... 6.30

1137.7406.12 I-6.3 E-2

R&S NRP-Z11/-Z21 Remote Control - Commands

6 Remote Control – Commands

Notation

In the following secti ons , a l l co m mands implemented in th e s ensor are first liste d i n a t ab le ac c ord ing to
command systems and are then described in detail. The notation is largely in line with the SCPI
standard.

Command tables

Indentations

[?]
?

For a quick overview of available comm ands, the commands are listed in a table
before they are described. These tables contain the following four columns:

Command: Commands and their tree structure.
Parameters: Possible parameters.
Unit: The basic unit of the physical parameters (must not be sent with

parameters).

Remarks: Identification of all commands

• that have no query form

• that are available as query only

The various levels of the SCPI command hierarchy are shown in the table by
indentations to the right. T he lower the l evel, the greater th e indentat ion to the r ight.
It should be noted that the complete notation of the command includes the higher
levels too.

Example:

SENSe:AVERage:COUNt is represented in the table as follows:
SENSe first level

:AVERage second level
:COUNt third level

In the individual des cr ipt ion, the c om mand is shown in full length. An example of the
command is given at the end of the description.

A question mark in square brackets at the end of a command indicates that this
command can either be us ed as a s etting com m and (with out ques tion m ark) or as a
query (with question mark). If the question mark is not in square brackets, the
command is a query only.

Example:

SENSe:POWer:AVG:APERture[?]
SENSe:POWer:AVG:APERture 1e-3 sets the length of the sampling window to

1 ms.

SENSe:POWer:AVG:APERture? Returns the currently set length as a response.
*IDN? Queries the sens or id entification string t hat of c our se c annot be c h an ged. F or

this reason, this command is only available as a query.

Special
characters | for
parameters

{numeric
expression}

<parameter>
<variable>

1137.7406.12 6.1 E-2

A vertical bar between parameters is used to separate alternative options (OR link).

Example:

NITiate:CONTinuous OFF | ON

The parameter OFF or ON can be entered.
A numeric expression in braces means that it has been rounded to the nearest

integral value.
A parameter or a variable in triangular brackets expresses its current value.

Remote Control - Commands R&S NRP-Z11/-Z21

Commands as per IEEE 488.2

The sensor supports a subset of the pos s i ble setti ng c om mands and queries (Comm o n Co mma nds a nd
Queries) in line with IEEE 488.2.

*IDN? – IDentification Query

*IDN? returns a string with inf ormation on the sens or’s identity (device identification code) . In addition,
the version num ber of the ins talled f irmware is indicated . The st ring for a sensor of type R &S NRP-Z21
has the following structure:

ROHDE&SCHWARZ,NRP- Z21, <s er i al nu mber >,<firmware version>
<serial number>: Serial number in ASCII

<firmware version>: Firmware version number in ASCII

*RST – Reset

*RST sets the sensor to the default state, i.e. the default settings for all test parameters are loaded.

*TRG – Trigger

*TRG triggers a m easurement. For this purpose, the sens or is in the WAIT_FOR_TRIGGER state and
the source for the trigger event is set to BUS (TRIGger :S OURc e BU S).

*TST? – Self Test Query

*TST? starts a selftest and returns 0 (no error found) or 1 (an error has occurred). The selftest
comprises the following functions:

• RAM test

• Operating voltages

• Temperature measurement

• Calibration data set

• Noise

• Zero-point offsets.

1137.7406.12 6.2 E-2

R&S NRP-Z11/-Z21 Remote Control - Commands

SCPI Commands

The sensors R&S NRP-Z11/-Z21 are controlled via the groups of commands

• CALibration (zeroing)

• SENSe (measurement configurations)

• SYSTem

• TRIGger

• SERVice.

CALibration

Table 6-1 Commands of the CALibration system

Command Parameter Unit Remarks

CALibration

:DATA[?] <calibration data set as definite length block>

:LENGth? Bytes Query only

:ZERO

:AUTO[?] OFF | ON | O N C E

CALibration:DATA[?] <calibration data set as definite length block>

CALibration:DATA is used for writing a calibration data set in the flash memory of the sensor.
The query yields the calibration data set currently stored in the flash memory as a definite length block.

CALibration:DATA:LENGth?

CALibration:DATA:LENGth? yields the length in bytes of the c alibration dat a set currentl y stored in the
flash memory. Progr am s that read o ut the c alibr ation da ta se t can us e th is inform ation t o de term ine the
capacity of the buffer memory required.

1137.7406.12 6.3 E-2

Remote Control - Commands R&S NRP-Z11/-Z21

CALibration:ZERO:AUTO[?] OFF | ON | ONCE

The commands CALibration:ZERO:AUTO ON and CALibration:ZERO:AUTO ONCE zeroes the three
measurement paths of the sensor. For this p urpose, the test sig nal must be deactiva ted or the sens or
disconnected from the signal source. The s ensor automatic ally detects the prese nce of any signif icant
power to be meas ured. T his caus es zero ing to be aborte d and error m ess age NRPERROR_CALZERO
to be output. The CALibration:ZERO:AUTO OFF is ignored. Zer oing takes four seconds at a m inimum ,
but at least as long as the selected averaging filter needs for settling (only fixed-filter mode).

Repeat zeroing

• during warm-up after switching on or connecting the instrument

• after a substantial variation of the ambient temperature

• after fastening the sensor to an RF connector at high temperature

• after several hours of operation

• when very low-power signals are to be measured, e.g. less than 10 dB above the

lower measurement limit.

For zeroing switch off the test signal and do not remove the sensor from the signal source.
Apart from keeping the thermal balance, this has the advantage that the noise
superimposed on the test signal (e.g. from a broadband amplifier) can be detected on
zeroing and does not impair the measurement result.

The query always yields 1 (= OFF).

Default setting

After a power-on rese t, the zero offsets determined durin g the last calibration are used until t he first
zeroing. Therefore, very slight zero off s ets are to be expected with a warmed up sensor. Initial i zation b y
means of *RST or SYSTem:INITialize has no influence on the current zero offsets.

1137.7406.12 6.4 E-2

R&S NRP-Z11/-Z21 Remote Control - Commands

SENSe (Sensor Configuration)

The sensor is configured by means of the commands of the groups SENSe and TRIGger.

Table 6-2 Commands of the SENSe system

Command Parameter Unit Remarks

SENSe

:AVERage

:RESet No query

:STATe[?] OFF | ON

:TCONtrol[?] MOVing | REPeat

:COUNt[?] 1 to 65536

:AUTO[?] OFF | ON | ONCE

:TYPE[?] RESolution | NSRatio

:MTIMe[?] 1.0 to 999.99 s

:NSRatio[?] 0.0001 to 1.0 dB

:RESolution[?] 1 to 4

:SLOT[?] 1 to <SENSe:POWer:TSLot:AVG:COUNt>

:CORRection

:OFFSet[?] -200.0 to 200.0 dB

:STATe[?] OFF to ON

:DCYCle[?] 0.001 to 99.999 %

:STATe[?] OFF to ON

:SPDevice:STATe[?] OFF to ON

:FREQuency[?] 10.0e6 to 8.0e9 (NRP-Z11) or 18.0e9 (NRP-Z21) Hz

:FUNCtion[?] “POWer:AVG“ | “POWer:TSLot:AVG“ |

:POWer

“POWer:BURSt:AVG“ | “XTIME:POWer“

:AVG

:APERture[?] 1.0e-6 to 0.3 s

:BUFFer

:STATe[?] OFF | ON

:SIZE[?] 1 to 1024

1137.7406.12 6.5 E-2

Remote Control - Commands R&S NRP-Z11/-Z21

Command Parameter Unit Remarks

:SMOothing:STATe[?] OFF | ON

:BURSt:DTOLerance[?] 0.0 to 3.0e-3 s

:TSLot:AVG

:COUNt[?] 1 to 128

:WIDTh[?] 10e-6 to 100e-3 s

:RANGe [?] 0 to 2

:AUTO[?] OFF | ON

:CLEVel[?] 0.0 to 20.0 dB

:SAMPling[?] FREQ1 | FREQ2

:SGAMma

:CORRection:STATe[?] OFF | ON

:MAGNitude[?] 0.0 to 1.0

:PHASe[?] -360. 0 to 360.0 degree

:TRACe

:AVERage

:STATe[?] OFF | ON

:TCONtrol[?] MOVing | REPeat

:COUNt[?] 1 to 65536

:AUTO[?] OFF | ON | ONCE

TYPE[?] RESolution | NSRatio

:MTIMe[?] 1.0 to 999.99 s

:NSRatio[?] 0.0001 to 1.0 dB

:RESolution[?] 1 to 4

:POINt[?] 1 to <SENSe:TRACe:POINts>

:MPWidth? s Query only

:OFFSet:TIME[?] – (<TRIGger:DELay> + 0.005) to 100.0 s

:POINts[?] 1 to 1024

:REALtime[?] OFF | ON

1137.7406.12 6.6 E-2

R&S NRP-Z11/-Z21 Remote Control - Commands

Command Parameter Unit Remarks

:TIME[?] 0.0001 to 0.3

:TIMing

:EXCLude

:STARt[?] 0.0 to 3.0e-3 s

:STOP[?] 0.0 to 3.0e-3 s

SENSe:AVERage:COU N t[ ? ] 1 to 65536

SENSe:AVERage:COUNt sets the number of measured values that have to be averaged for f orming
the measurement result in the modes Continuous Average, Burs t Av erage and Timeslot. The higher this
averaging factor, the less the meas ured values fluctuate and the longer the measurement time lasts.
The parameter is rounded off to the nearest power-of-two number.

The query yields the averaging factor used in the modes Continuous Average, Burst Average and

Timeslot.

The averaging functio n must be activated with S ENSe:AVERage:STATe ON so that t he
set averaging factor becomes effective.

Default setting: 4

SENSe:AVERage:COUNt:AUTO[?] OFF | ON | ONCE

SENSe:AVERage:COUNt:AUTO activates (auto-aver aging) or deac tivates (fix ed-filter mode) automatic
determination of the a veraging factor in the modes Continuous Av erage , Burst Average and Timeslot. If
auto-averaging is activat ed, the averaging factor is continuously determ ined and set depen ding on the
level of power and other parameters.

SENSe:AVERage:COUNt:AUTO ON activates auto-averaging and SENSe:AVERage:COUNt
:AUTO OFF deactivates it. On deactivation, the previous, automatically det ermined averaging f actor is

used in the fixed-filter mode. The SENSe:AVERage:COUNt:AUTO ONCE command ensures that a new
averaging factor is determined by the filter automatic function under the current measurement
conditions and used in the fixed-filter mode.

The query yields

• 1 for OFF,

• 2 for ON.

Default setting: OFF

1137.7406.12 6.7 E-2

Remote Control - Commands R&S NRP-Z11/-Z21

SENSe:AVERage:COUN t:AUTO:MTIMe[?] 1.0 to 999.99

SENSe:AVERage:COUNt:AUTO:MTIMe sets the settling tim e upper limit of the averaging filter in the
auto-averaging mode f or the Continuous Average, Burst Average and Timeslot modes an d limits the
length of the filter.

The query yields the cur rent settling tim e upper lim it of the averaging f ilter in the a uto-averaging m ode
for the Continuous Aver ag e, Burst Average and Timeslot modes.

Default setting: 30.0 [s]

SENSe:AVERage:COUNt :A U TO:N SR atio[ ?] 0.0001 to 1.0

SENSe:AVERage:COUNt:AUTO:NSRatio determines the relative noise component in the measurement
result for the Continuous Average, Burst Average and Timeslot modes if auto-averaging is oper ated in
the corresponding mode (SENSe:AVERage:COUNt:AUTO:TYPE NSRatio). The noise component is
defined as the magnitude of the level variation in dB caused by the inherent noise of the sensor (two
standard deviations).

The query yields the r elative no ise component in the resu lt for the Conti nuous Avera ge, Burst Average
or Timeslot modes.

Default setting: 0.01 [dB]

SENSe:AVERage:COUNt:AUTO:RESolution[?] 1 to 4

SENSe:AVERage:COUNt:AUTO:RESolution sets the reso lution index f or the autom atic averaging filt er
in the Continuous Average, Burst Average and Timeslot modes if it is opera ted in the RESolution mode.
The resolution index equals the number of decimal places that have to be tak en into account for the
further processing of the measurem ent result in dBm, dBµ V or dB. T he normal m ode is des igned in a
similar manner as for the predec es sor s R& S NRV S an d R &S NRVD or other comm er c ial power meters.
The higher the select ed index, the better th e measurement res ult is filtered without the last signif icant
place (0.01 dB with an index of 3) actually being set. The NSRatio setting is recommended instead.

The query yields the resolution index for the Continuous Average, Bu r s t Aver ag e and Timeslot modes.

Default setting: 3

SENSe:A VERage :COUNt:A UTO:SLOT [?] 1 to <SENSe:PO Wer:TSL ot:A VG:COUNt>

SENSe:AVERage:COUNt:AUTO:SLOT defines the timeslot, whose power is referenced by
auto-averaging in the Timeslot mode. The timeslot is addressed via its num ber , the count ing begin ning
with 1. The timeslot number must not exceed the number of the currently set timeslots. If a valid
timeslot number is initially se t and then the number of timeslots r educed to a va lue that is sm aller than
the initial timeslot number, the initial value is automatically set to the new timeslot number, i.e.
auto-averaging references the most recent timeslot.

The query yields the num ber of the current tim eslot, whose power is referenced by auto-ave raging in
the Timeslot mode.

Default setting: 1

1137.7406.12 6.8 E-2

R&S NRP-Z11/-Z21 Remote Control - Commands

SENSe:AVERage:COUNt:AUTO:TYPE[?] RESolution | NSRatio

SENSe:AVERage:COUNt:AUTO:TYPE defines the au tomatic averaging filter mode in the Continuous
Average, Burst Average and Timeslot modes. The RESolution parameter sets the mode usual for

power meters; NSRatio predefines the compliance to an exactly defined noise component.
The query yields

• 1 for RESolution,

• 2 for NSRatio.

Default setting: RESolution

SENSe:AVERage:RESet

SENSe:AVERage:RESet initializes the averaging filter for the Cont inuous Average, Burst Average or
Timeslot modes. This is useful if a high averaging factor is set in the SENSe:AVERage
:TCONtrol MOVing filter m ode and if the power to be meas ured has signific antly decreased since the

previous measurem ent, e.g. by several powers of ten. In this case, pre vious measurem ent results stil l
contained in the a veraging filter strongly aff ect the settling of the displa y; as a result, the advantage of
the SENSe:AVERage:TCONtrol MOVing filter mode, i.e. the abil ity to detect trends in the meas urem ent
result while the m easur em ent is s till in progres s, is lost. T he SENSe:AVERage:RESet c omm and solves
this problem by deleting all previous measurement results that the averaging filter contains. After
initialization, the filt er length graduall y increases from 1 to its nom inal value SENSe:AVERage:COUNt,
so that trends in the measurement r esult become quickly app arent. However, this proc edure does not
shorten the measurement time required in order for the averaging filter to settle completely.

SENSe:AVERage:STATe[?] OFF | ON

SENSe:AVERage:STATe switches on or off the averaging filter for the Continuous Average, Burst
Average and Timeslot modes.

The query yields

• 1 for OFF,

• 2 for ON.

Default setting: ON

SENSe:AVERage:TCONtrol[?] MOVing | REPeat

SENSe:AVERage:TCONtrol (terminal control) defines the behaviour of the averaging filter in the
Continuous Average, Burst Av erage an d Timeslot modes. As soo n as a new m easured va lue is shifted

to the FIR filter, a ne w average value is availa ble at the filter output, which is obtained from the ne w
measured value and the other values stored in the filter.

The MOVing param eter defines that each n ew average value is output as a measurement r esult. This
allows tendencies in the result to be recognized during the measurement procedure.

The REPeat param eter defines that a ne w result is output after th e FIR filter has been filled with ne w
measured values. This ensures that no redundant information is output.

The query yields

• 1 for MOVing,

• 2 for REPeat.

Default setting: MOVing

1137.7406.12 6.9 E-2

Remote Control - Commands R&S NRP-Z11/-Z21

SENSe:CORRection:DCYCle[?] 0.001 to 99.999

SENSe:CORRection:DCYCle sets the duty cycle to a percent value for the correction of pulse­modulated signals. With the correcti on act ivate d, the sensor calculates t he s i gna l pu ls e po wer from this
value and the mean power. Since t he duty cycle is only usef ul i n th e Co nti nuo us A vera ge mode and the
normal mode, it is evaluated only there.

The query yields the current duty cycle in percent.

Default setting: 1.0 [%]

SENSe:CORRection:DCYCle:STATe[?] OFF | ON

SENSe:CORRection:DCYCle:STATe ON activates the dut y cycle correction and t hus the pulse-power
measurement whereas SENSe:CORRection:DCYCle:STATe OFF deactivates it.

The query yields

• 1 for OFF,

• 2 for ON.

Default setting: OFF

SENSe:CORRection:OFFSet[?] –200.0 to 200.0

SENSe:CORRection:OFFSet defines a fixed offset in dB, which is used to correct th e measured v alue.
(When a log scale is used, the offset is added to the measured value; this is the reason why the
command has this name.)

The attenuation of an at tenuator located ahe ad of th e s ensor or the coupling atten uat ion of a directiona l
coupler is taken into account with a posit ive offset, i.e. the sensor calculat es the power at the input of
the attenuator or directional coup ler. A negative offset can be used to correc t the influence of a gain
connected ahead.

The query yields the set offset in dB.

Default setting: 0.0 [dB]

SENSe:CORRection:OFFSet:STATe[?] OFF | ON

SENSe:CORRection:OFFSet:STATe ON activates the offset correction and
SENSe:CORRection:OFFSet:STATe OFF deactiv ates it.

The query yields

• 1 for OFF,

• 2 for ON.

Default setting: OFF

1137.7406.12 6.10 E-2

R&S NRP-Z11/-Z21 Remote Control - Commands

SENSe:CORRection:SPDev:STATe[ ?] OFF | ON

SENSe:CORRection:SPDevice:STATe ON activates the s-parameter data set for a component
(attenuator, directional coupler) connected ahead of the sensor. Parameter OFF deactivates it.

The use of s-parameters instead of a fixed offset
(see group of commands SENSe:CORRection:OFFSet)
allows more precise measurements, since the interactions between the sensor, the source and
components connected betwe en them can be taken into ac count. (For detailed i nformation on loadin g
s-parameter data sets, ref er to section 3.) The sens or has no factory-set s-par ameter data set. In th is
state, the SENSe:CORRection:SPDevice:STATe ON command generates an error message.

The query yields

• 1 for OFF,

• 2 for ON.

Default setting:

The factory-set default setting of the sensor is OFF. On loading an s-parameter table, the def ault s et ting
can be redefined (see section 3).

SENSe:FREQuency[?] 10.0e6 to 8.0e9 (NRP-Z11) or 18.0e9 (NRP-Z21)

SENSe:FREQuency transfers the carrier frequency of the RF s ignal to be m easured; this frequenc y is
used for the frequenc y-response correc tion of the m easurement result. T he center freque ncy is s et for
broadband signals (spread-spectrum signals, multicarrier signals).

The query yields the set carrier frequency in Hz.
Default setting: 50.0e6 [Hz]

1137.7406.12 6.11 E-2

Remote Control - Commands R&S NRP-Z11/-Z21

SENSe:FUNCtion[?] <sensor_function>

SENSe:FUNCtion <sensor_function> sets the sensor to one of the following measurement modes:
Table 6-3 Measurement modes

<sensor_function> Description of the measurement mode

"POWer:AVG"

"POWer:TSLot:AVG"

"POWer:BURSt:AVG"

Continuous Average

After occurrence of the trigger event, the mean power is measured in a time interval (sampling
window) whose width is defined with SENSe:POWer:AVG:APERture.
The single measurements are performed in pairs to obtain a more accurate measurement result by
differentiation. With the averaging function activated, this operat i on is repeated the number of times
specified by the averaging factor. With the averaging function activated, t he actual m easurem ent time
is thus
2 × <SENSe:AVERage:COUNt> × <SENSe:POWer:AVG:APERture>
and with deactivated averaging function
2 × <SENSe:POWer:AVG:APERture>.
Trigger events start one or several measurements in the Continuous Average mode (depending on the
TRIGger:COUNt parameter).

Timeslot

The power is measured in a defined number of consecutive timeslots. Up to 128 timeslots have the
same width, which is defined by SENSe:POWer:TSLot :WIDTh. Their quantity is defined by
SENSe:POWer:TSLot:COUNt. The measurement result is an array, which contains as many elements
as timeslots. Each element represents the average power in one of the timeslots. After each
occurrence of the trigger event, a measurement is performed in all timeslots. The single
measurements are also performed in pairs in this mode to obtain a more accurate measurement result
by differentiation. With the averaging function activated, this operation is repeated the number of times
specified by the averaging factor. With the averaging function activated, t he actual m easurem ent time
is thus
2 × <SENSe:AVERage:COUNt> × <SENSe:POWer:TSLot:AVG:WIDTh>
and with deactivated averaging function
2 × <SENSe:POWer:TSLot:AVG:WIDTh>.
Note that a corresponding number of trigger events must be available.

Burst Average

This mode is used for the measurement of the average power of repetitive single bursts, for example.
The time interval (integration time) in which the average power is measured is not predefined. Instead,
a special algorithm detects the beginning and end of the burst and ensures the synchronization of the
sampling window. However, the user must define the dropout tolerance, a time criterion for detecti ng
the pulse or burst end, using SENSe:POWer:BURSt:DTOLerance.
In the Burst Average mode, external trigger events (irrespective of the setti ng of the TRIGger:SOURc e
parameter) and the TRIGger:DELay parameter are ignored.

"XTIMe:POWer"

Scope

The Scope mode is similar to the Timeslot mode. Since, however, up to 1024 consecutive timeslots
(called "points" here) are possible, the maximum averaging factor is limited to 8192 due to the storage
capacity. In the Scope mode, other limits than in the Timeslot mode apply to the timeslot width.
SENSe:TRACe:REALtime ON optimizes the time resolution. The differentiation and averagi ng f ilter are
ignored.

1137.7406.12 6.12 E-2

R&S NRP-Z11/-Z21 Remote Control - Commands

Time intervals that are excluded from the measurement c an be set at the beginning a nd the end of the
sampling window or timeslot in the measurement modes Burst Average and Timeslot.
(SENSe:TIMing:EXCLude:STARt and -:STOP).

The query yields

• 1 for "POWer:AVG",

• 2 for "POWer:TSLot:AVG",

• 4 for "POWer:BURSt:AVG",

• 8 for "XTIMe:POWer".

Default setting: "POWer:AVG"

SENSe:POWer:A VG:APERture[?] 0.0001 to 0.3

SENSe:POWer:AVG:APERture def in es the time interval (sampling window) for the Con tinuo us Av erage
mode; measured values are continuously recorded in this interval. In manual operation, the default
setting of 20 ms in conjunction with the activated smoothing (see
SENSe:POWer:AVG:SMOothing:STATe) is sufficient in most cases. Another value, which is normally
higher, is required when the measurement result s hows variations due to modulation. Especiall y with
low-frequency modulation, it is useful to adapt the size of the sampling window exactly to the
modulation period, which yields an optimum stable display.

Table 6-4 Optimum selection of the sampling window size (N = 1, 2, 3, …)

Smoothing Optimum sampling window size

OFF

ON

N × modulation period / 2

N × modulation period × 2

The theoretically shor test m eas urem ent tim e can then be obta ined onl y with sm oothing deact ivated . As
the number of modulation periods that fit into a sam pling window increas es, the issue of whether N is
an integer becomes more cr itical. With smoothing activated, appr ox. 5 periods are s ufficient to reduc e
variations due to modulation to an acceptable extent; variations are no longer perce ptible with more
than 9 periods. W ith smoothing deactivated, the situation is significantl y unfavourable. In this case, 5
instead of 300 periods are required and the variations completely disappear as of 3000 periods.

The query yields the currently set width of the sampling window in seconds.

Default setting: 0.02 [s]

SENSe:POWer: AVG:BUFFe r: SI ZE[?] 1 to 1024

SENSe:POWer:AVG:BUFFer:SIZE sets the buffer size for the buffered Continuous Average mode.
The query yields the current buffer size for the buffered Continu ous Aver age mode.
Default setting: 1

1137.7406.12 6.13 E-2

Remote Control - Commands R&S NRP-Z11/-Z21

SENSe:POWer:AVG:BUFFer:STA Te[ ?] OFF | ON

The buffered Continuo us Average mode is activated with ON and deacti vated with OFF. In this mode,
the results generated by trigger events are co llect ed in the sens or until the buf fer is f illed. A ll res ults ar e
then transferred as b lock data. The m easurem ent rate obtained is thus h igher than in the non-buff ered
Continuous Average mode. The maximum measurement rate is obtained by combining the buffered
mode with multiple tr iggering ( see param eter TRIGger:COUNt). The size of the result buff er is set with
the SENSe:POWer:AVG:BUFFer:SIZe command.

The query yields

• 1 for OFF,

• 2 for ON.

Default setting: OFF

SENSe:POWer:AVG:SMOothing:STATe[?] OFF | ON

The ON parameter activates a s moothing filt er for modulated s ignals in t he Continuous Aver age mode
and OFF deactivates it. The smoothing filter is a steep-edge digital lowpass filter used to suppress
variations of results c ause d by low-frequency m odula tion. This param eter s hould be acti vat ed to reduce
variations in results due to modulation when the size of the sampling window cannot or shoul d not be
exactly adapted to the modulation period. If the s elected sam pling windo w is 5 to 9 tim es larger than a
modulation period, the variations in display are normally sufficiently reduced. With smoothing
deactivated, 300 to 3000 periods are required to obtain the same effect.

With smoothing deactivated, the sampling values are considered equivalent and averaged in a
sampling window, which yields an integrating behaviour of the measuring instrument. As described
above, optimum suppr ession of variations in the resu lt is thus obtained when the size of the sam pling
window is exactly adapted to the modulation period. Otherwise, the modulation can have a
considerable influence, even if the sampling window is much larger than the modulation period. The
behaviour can be consid erably improved by subjecting sam pling values to weighting (raise d-von-Hann
window), which corresponds to video filtering. This is exactly what happens with activated smoothing.

Since the smoothing f ilter increases the inherent no ise of the sens or by approx. 20% , it s hould remain
deactivated if it is not required.

The query yields

• 1 for OFF,

• 2 for ON.

Default setting: ON

SENSe:POWer:BURSt:DTOLerance[?] 0.0 to 0.003

SENSe:POWer:BURSt:DTOLerance defines the dropout tolerance, a parameter f or reliably detecting
the burst end in the B urst Average mode with modulated si gnals (e. g. with digital s tandards NADC,
PDC, PHS, etc.). The dropo ut toler ance s hould be sel ected larger than th e long est am plitu de drop and
smaller than the g ap between two cons ecutive bur sts. T he defau lt va lue is suf ficient for al l usua l dig ital
communication standards.

The query yields the dropout tolerance for the Burst Average mode.
Default setting: 0.0001 [s]

1137.7406.12 6.14 E-2

R&S NRP-Z11/-Z21 Remote Control - Commands

Power

Trigger

level

Time

Dropout time

BURSt:DTOLerance

Pulse duration

Fig. 6-1 Effect of SENSe:POWer:BURSt:DTOLerance

BURSt:DTOLerance

SENSe:POWer:TSLot:AVG:COUNt [? ] 1 to 128

For the Timeslot m ode, SENSe:POWer:TSLot:AVG:COUNt sets the number of consecutive timeslots
that are to be processed after each trigger event.

The query yields the number of consecutive timeslots.

Default setting: 1

SENSe:POWer:TSLot:AVG:WIDTh[?] 0.0001 to 0.1

SENSe:POWer:TSLot:AVG:WIDTh sets the length of a timeslot in seconds for the Timeslot mode.
The query yields the length of a timeslot in seconds for the Timeslot mode.

Default setting: 0.001 [s]

SENSe:RANGe[?] 0 to 2

SENSe:RANGe selects the measurement path of the sensor. The sensor has three separate
measurement paths. Path 1 is the most sensitive, path 2 medium and path 3 the least sensitive.
SENSe:RANGe 0 selects path 1, SENSe:RANGe 1 path 2 and SENSe:RANGe 2 path 3.
The dynamic ranges of these measurement paths depend on temperature and are model-specific.
Reference values are 40 µW(–14 dBm ) for the m os t sens itive measurement path, 4 mW (6 dBm) for the
medium one and 400 mW (26 dBm) for the least sensitive.

The query yields

• 0 for path 1,

• 1 for path 2,

• 2 for path 3.

If the measurement path is selected manually (SENSe:RANGe: A U T O O FF), the currently selected
measurement path is output. With automatic selection, the last path that was set manually is output. It is
therefore immediately reset after deactivating the automatic function.

Default setting: 2 (least sensitive path)

1137.7406.12 6.15 E-2

Remote Control - Commands R&S NRP-Z11/-Z21

SENSe:RANGe:AUTO[?] OFF | ON

SENSe:RANGe:AUTO ON activates the automatic selection of the measurement path and
SENSe:RANGe:AUTO OFF deactivates it.

The query yields

• 1 for OFF,

• 2 for ON.

Default setting: ON

SENSe:RANGe:AUTO:CLEVel[?] –20.0 to 0.0

SENSe:RANGe:AUTO:CLEVel is used t o reduce the transition range between m easurement paths 1
and 2 or 2 and 3 by the indicated value (in dB). This can improve the measurement accuracy for
signals with a high peak-to-average ratio, since the headroom for modulation peaks becomes larger.
The disadvantage is that the S/N ratio is reduced at the lower limits of the transition ranges.

The query yields the offset of transition ranges between measurement channels 1 and 2 or 2 and 3.

Default setting: 0.0 [dB]

SENSe:SAMPling[?] FREQ1 | FREQ2

SENSe:SAMPling is used to vary the s ampling fr equency of the an alog-digital converter in the s ensor.
With parameter specification FREQ1 the sampling frequency is 133.400 kHz, and 119.467 kHz with
parameter FREQ2. This is provided to suppr ess interfering low-frequenc y mixture products from signal
components and the sampling fr eque ncy.

The query yields

• 1 for FREQ1,

• 2 for FREQ2.

Default setting: FREQ1

SENSe:SGAMma:CORRection:STATe[?] OFF | ON

SENSe:SGAMma:CORRection:STATe ON initiates the us e of the complex reflection coefficient of the
source defined with SENSe:SGAMma:MAGNitude a nd SENSe:SGAMma:PHASe for the correction of
interactions between the sensor, the source and the components connected between them (see
SENSe:CORRection:SPDevice:STATe). This compensates for the source mismatch, which often
largely contributes to measurement uncertainty.

The query yields

• 1 for OFF,

• 2 for ON.

Default setting: OFF

1137.7406.12 6.16 E-2

R&S NRP-Z11/-Z21 Remote Control - Commands

SENSe:SGAMma:MAGNitude[?] 0.0 to 1.0

SENSe:SGAMma:MAGNitude defin es the magnitud e of the complex reflection co eff icient of the s our ce.
A value of 0.0 corresponds to an ideal matched source and a value of 1.0 to total reflection.

The query yields the set magnitude.

Default setting: 0.0

SENSe:SGAMma:PHASe[?] –360.0 to 360.0

SENSe:SGAMma:MAGNitude def in es the phase angle (in degrees ) of the c omplex reflection c o ef f icient
of the source.

The query yields the set phase angle.

Default setting: 0.0 [°]

SENSe:TRACe:A VER age:C OU N t [ ?] 1 to 65536

SENSe:TRACe:AVERage:COUNt is used to set the num ber of m easured values to be averaged in the
Scope mode for the formation of the meas urement result. The higher this averaging f actor, the lesser

the fluctuation the m easured values and the longer the measurem ent time. The parameter is rounded
off to the next power-of-two number.

The query yields the averaging factor used in the Scope mode.

The averaging function must be activated with SENSe:TRACe:AVERage:STATe ON so
that the set averaging factor becomes effective.

Default setting: 4

SENSe:TRACe:AVERage:COUNt:AUTO[?] OFF | ON | ONCE

SENSe:SWep:AVERage:COUNt:AUTO activates (auto-avera ging) or d eactivates ( fixed-filter mode) the
automatic determ ination of the averag ing factor in t he Scope mode. If auto-averaging is activated, the
averaging factor is continuously determined and set depending on the level of power and other
parameters.

SENSe:TRACe:AVERage:COUNt:AUTO ON activates auto-averaging and SENSe:TRACe
:AVERage:COUNt:AUTO OFF deactivates it. When deactivation occurs, the previous, automatically
determined averaging factor is used in the fixed-filter mode. The SENSe:TRACe:AVERage
:COUNt:AUTO ONCE command ensures that a new averaging factor is determined by the filter

automatic function un der the current meas urement conditions an d that this factor is used in the fixed­filter mode.

The query yields

• 1 for OFF,

• 2 for ON.

Default setting: OFF

1137.7406.12 6.17 E-2

Remote Control - Commands R&S NRP-Z11/-Z21

SENSe:TRACe:A VERage:C OU N t:AUTO:MTIMe[?] 1.0 to 999.99

SENSe:TRACe:AVERage:COUNt:AUTO:MTIMe sets the settlin g time upper l imit of the avera ging filter
in the auto-averaging mode for the Scope mode and limits the length of the filter.

The query yields the cur rent settling tim e upper lim it of the averaging f ilter in the a uto-averaging m ode
for the Scope mode.

Default setting: 30.0 [s]

SENSe:TRACe:A VERage:C OU Nt :AUTO:NSRatio[?] 0.0001 to 1.0

SENSe:TRACe:AVERage:COUNt:AUTO:NSRatio determines the relative noise component in the
measurement result for the Scope mode if auto-averaging is operated in the corresponding mode
(SENSe:TRACe:AVERage:COUNt:AUTO:TYPE NSRatio). The noise component is defined as the
magnitude of the level variation in dB caused by the inherent noise of the sensor (two standard
deviations).

The query yields the relative noise component in the measurement result in the Scope mode.

Default setting: 0.01 [dB]

SENSe:TRACe:AVERage:COUNt:AUTO:RESolution[?] 1 to 4

SENSe:TRACe:AVERage:COUNt:AUTO:RESolution sets the resolution index for the automatic
averaging filter in th e Scope mode when it is operated in the RESolution m ode. The resolut ion index is
equal to the number of decimal places that have to be taken into account for the f urther processing of
the measurement result in dBm , dBµV or dB. Thus, the d esign of the normal m ode is sim ilar to that for
the predecessors R&S NRVS and R&S NRVD or other commercial power meters. The higher the
selected index, the better the m easurement result is f iltered without the last sig nificant place (0.01 dB
with an index of 3) being actually set. The NSRatio setting is recommended instead.

The query yields the resolution index for the Scope mode.

Default setting: 3

SENSe:TRACe:AVERage:COUNt:AUTO:POINt[?] 1 to <SENSe:TRACe:POINts>

SENSe:TRACe:AVERage:COUNt:AUTO:SLOT defines the "point" whose power is referenced by
auto-averaging in the Scope mode. The "point" is addressed via its number , the counting beginning
with 1. The "point" number must not exc eed the number of the current ly set "points". If a valid "po int"
number is initiall y set and th en the num ber of "points" r educed to a v alue that is sm aller than th e initia l
"point" number, the initial value is automatically set to the new "point" number, i.e. auto-averaging
references the most recent "point".

The query yields the number of the current "p oint" whose power is ref erenced b y auto-averagi ng in the
Scope mode.

Default setting: 1

1137.7406.12 6.18 E-2

R&S NRP-Z11/-Z21 Remote Control - Commands

SENSe:TRACe:AVERage:COUNt:AUTO:TYPE[?] RESolution | NSRatio

SENSe:TRACe:AVERage:COUNt:AUTO:TYPE defines the mode of the automatic averaging filter in the
Scope mode. The RESolution parameter sets the mode usual for power meters; NSRatio predefines the

compliance to an exactl y defined nois e component.
The query yields

• 1 for RESolution,

• 2 for NSRatio.

Default setting: RESolution

SENSe:TRACe:AVERage:STA T e[?] OFF | ON

SENSe:TRACe:AVERage:STATe switches the averaging filter on or off for the Scope mode.
The query yields

• 1 for OFF,

• 2 for ON.

Default setting: ON

SENSe:TRACe:AVERage:TCONtrol[?] MOVing | REPeat

SENSe:TRACe:AVERage:TCONtrol (terminal control) defines the behaviour of the averaging filter in
the Scope m ode. As soon as a ne w m easured value is s hifted to the FIR f ilter , a new m ean is a vailabl e
at the filter output, which is obtained fr om the new measured value and th e other values stored i n the
filter.

The MOVing param eter defines that each n ew average value is output as a measurement r esult. This
allows trends in the result to be recognized during the measurement procedure.

The REPeat param eter defines that a ne w result is output after th e FIR filter has been filled with ne w
measured values. This ensures that no redundant information is output.

The query yields

• 1 for MOVing,

• 2 for REPeat.

Default setting: MOVing

SENSe:TRACe:MPWidth?

SENSe:TRACe:MPWidth? provides the mini mum po int width for the Scope m ode, i.e. t ime r esolution in
seconds is determ ined as a func tion of the TRIGger:SOURce param eter while tak ing into co nsiderati on
how the sensor operates. The display may be incorrect if

<SENSe:TRACe:POINts> × <SENSe:TRACe:MPWidth> < SENSe:TRACE:TIME>

One way to prevent this is to decrease the number of points of the Scope measurement sequence.

1137.7406.12 6.19 E-2

Remote Control - Commands R&S NRP-Z11/-Z21

SENSe:TRACe:OFFSet:TIME[?] – (<TRIGg er:D ELay> + 0.005) to 100.0

This command is used to shift the timeslot for measured-data acquisition along the time axis in the
Scope mode without m odifying the value of TRIGger:DELay. Positive valu es yield an additional dela y
and negative values a correspondingly earlier measured-data acquisition.

The query yields the set time in seconds.

Default setting: 0.0 [s]

SENSe:TRACe:POINts[?] 1 to 1024

This command def ines the time resolution of the measurement result. Each "point" represents a tim e
interval whose duration is obtained from the length of the timeslot (command SENSe:TRACe:TIME)
divided by the number of "points". T he measurem ent result for a "po int" equa ls the a verage po wer over
the associated time interval.

The query yields the number of set "points".

Default setting: 100

SENSe:TRACe:REALtime[?] OFF | ON

SENSe:TRACe:REALtime ON suppresses the measured-value acquisition in pairs so that single
operations can be recorded in this setting. Since the averaging filter of the sensor is not used,
SENSe:AVERage:STATe is ignored, but is not affected.

The query yields

• 1 for OFF,

• 2 for ON.

Default setting: OFF

SENSe:TRACe:TIME[?] 0.0001 to 0.3

SENSe:TRACe:TIME sets the duration of the t imeslot in the Scope mode. This tim eslot is divid ed into a
number of equal intervals, in which the average power is determined. The number of intervals equals
the number of test points, which is set with the command SENSe:TRACe:POINts.

The query yields the duration of the timeslot in the Scope mode (in s).

Default setting: 0.01 [s]

SENSe:TIMing:EXCLude:STARt[?] 0.0 to 0.1

SENSe:TIMing:EXClude:STARt defines the exclusion time at the beginning of the measurement
window in the Burst Average (Fig. 6-2) and Timeslot (Fig. 6-3) modes.

The query yields the exclusion time at the beginning of the measurement window.
Default setting: 0.0 [s]

1137.7406.12 6.20 E-2

R&S NRP-Z11/-Z21 Remote Control - Commands

SENSe:TIMing:EXCLude:STOP[?] 0.0 to 0.003

SENSe:TIMing:EXClude:STOP defines the exclusio n time at the end of the measurement windo w i n th e
Burst Average (Fig. 6-2) and Timeslot (Fig. 6-3) modes.

The query yields the exclusion time at the end of the measurement window.

Default setting: 0.0 [s]

Measurement

window

r

e
w

o
P

T

START

T

STOP

Triggering
(Start)

Trigger level

Time

Triggering
(Stop)

Fig. 6-2 Effect of SENSe:TIMing:EXCLude:STARt and :END in the Burst Average mode

Nominal Width Nominal Width

Measurement

window

r

e
w

o
P

T

START

T

STOP

Time

Trigger Delay (< 0 ) Triggering

(Start)

Fig. 6-3 Effect of SENSe:TIMing:EXCLude:STARt and :END in the Timeslot mode

1137.7406.12 6.21 E-2

Remote Control - Commands R&S NRP-Z11/-Z21

SYSTem

With the aid of the SYST em system, administrativ e device settings can be defined and querie d. This
includes detailed infor m ation on the s ens or and its in itial ization and the tr ansf er of ava ilabl e c omm ands
and their parameter limits.

Table 6-5 Commands of the SYSTem system

Command Parameter Unit Remarks

SYSTem

:INFO? [Item] Query only

:INITialize No query

MINPower? W Query only

:TRANsaction

:BEGIN: No query

:END No query

SYSTem:INFO? [Item]

SYSTem:INFO? yields a s tring cont aining i nform ation that is mor e detailed th an the ident ificatio n str ing
delivered by the sensor as a response to *IDN?. If no Item is specified, the response string is a
sequence of entries in the form Item:Information-String s eparated by CR and LF (in C notation: \r\n).
With the Item optional ly append ed to th e com m and, the entr y for t he re quired Item can be queried. T he
response string is zero-terminated, i.e. its end identification is a zero byte (in C notation: \0).

Table 6-6 Meaning of Item in the SYSTem:INFO? command

Item Information string Remarks

"MANUFACTURER" "Rohde & Schwarz GmbH & Co. KG" Manufacturer

"TYPE" "NRP-Z11" or "NRP-Z21" Type designation

"STOCK NUMBER" "1138.3004.02" or "1137.6000.02" Material number

"SERIAL" "<serial number>" 6-digit serial number

"HWVERSION" "000000000" Hardware version (standard)

"HWVARIANT" "000000000" Hardware model (standard)

"SW BUILD" "<build number>" Version number of sensor firmware

"TECHNOLOGY" "3 Path Diode" Detector technology used

"FUNCTION" "Power Terminating" The R&S NRP-Z11/-Z21 is a termination power sensor.

1137.7406.12 6.22 E-2

R&S NRP-Z11/-Z21 Remote Control - Commands

Item Information string Remarks

"MINPOWER" "<nominal lower test limit in W>" The nominal lower test limit of the R&S NRP-Z11/-Z21 is

"MAXPOWER" "<nominal upper test limit in W>" The nominal upper test limit of the R&S NRP-Z11/-Z21 is

"MINFREQ" "1e+07" The minimum measuring frequency of the R&S NRP-Z11/-Z21

"MAXFREQ" "8e+09" or "1.8e+10" The maximum measuring frequency is 8 GHz for the R&S NRP-

"RESOLUTION" “2.5µs Ext, 10µs Int” The maximum time resolution that can be reached in the Scope

"IMPEDANCE" "50" The R&S NRP-Z11/-Z21 RF input has a nominal input

"COUPLING" " A C/DC" The RF input of the R&S NRP-Z11/-Z21 is DC-coupled, but DC

200 pW, i.e. with s-parameter correction deactivated, the
sensor returns the information string "2e-10" as a response to
"SYSTem:INFo? "MINPOWER". With s-parameter correction
activated, the information string depends on the nominal lower
limit of the sensor/twoport combination.

200 mW, i.e. with s-parameter correction deactivated, the
sensor returns the information string "0.2" as a response to
"SYSTem:INFo? "MAXPOWER". With s-parameter correction
activated, the information string depends on the nominal upper
limit of the sensor/twoport combination.

is 10 MHz.

Z11 and 18 GHz for the R&S NRP-Z21.

mode is 2.5 µs for internal triggering and 10 µs for external
triggering.

impedance of 50 Ω.

voltages superimposed on the RF signal are suppressed by the
measurement amplifier.

"CAL. ABS." "<date>" Date of absolute calibration in the format YYYY-MM-DD. "Invalid

"CAL. REFL." "<date>" Date of reflection-coefficient calibration in the format YYYY-MM-

"CAL. S PARA." "<date>" Date of s-parameter calibration in the format YYYY-MM-DD. If

"CAL. MISC." "<date>" Date of the calibration of other parameters in the format YYYY-

"SPD MNEMONIC" "<mnemonic string>" Clear-text designat i on of t he components connec ted ahead of

Calibration Date" is returned with an invalid date entry.

DD. "Invalid Calibration Date" is returned with an invalid date
entry.

no S parameter set is loaded, the sensor returns the string "not
applicable". "Invalid Calibration Date" is returned with an invalid
date entry.

MM-DD. "Invalid Calibration Date" is returned with an invalid
date entry.

the sensor.

SYSTem:INITialize

SYSTem:INITialize sets the sensor to the sta ndard state, i.e. the d efault set tings f or all test p aram eters
are loaded in the sam e way as with *RST. The sensor then outputs a complete list of all supported
commands and parameters . With the comm and, the rem ote-c ontrol sof t ware can au tom aticall y adapt t o
the features of different types of sensors with different functionality.

1137.7406.12 6.23 E-2

Remote Control - Commands R&S NRP-Z11/-Z21

SYSTem:MINPower?

SYSTem:MINPower? yields the lower test lim it of the sensor or the com bination com prising the sens or
and components connec ted ahead of it, if the SENSe:CORRection:SPDevice parameter has the ON
value. This query can be used to deter mine a useful res ol ution for the result display n ear t he lower test
limit.

SYSTem:TRANsaction:BEGin

SYSTEM:TRANsaction:BEGin marks the beginning of a sequenc e of settin g com m ands betwee n whic h
the parameter limits must not be check ed. This preve nts the displa y of error mess ages when a setting
command causes a conflict that is resolved by a subsequent setting command. See
SYSTEM:TRANsaction:END.

SYSTem:TRANsaction:END

SYSTEM:TRANsaction:END marks the end of a sequence of setting commands between which the
parameter limits must not be checked. After this command, the parameter limits are checked.

1137.7406.12 6.24 E-2

R&S NRP-Z11/-Z21 Remote Control - Commands

TEST

Table 6-7 Commands of the TEST system

Command Parameter Unit Remarks

TEST:SENSor? Query only

TEST:SENSor?

TEST:SENSor? triggers a selftest of the sensor. In contrast to *TST, this command yields detailed
information, which is useful for troubleshooting.

1137.7406.12 6.25 E-2

Remote Control - Commands R&S NRP-Z11/-Z21

TRIGger

Table 6-8 Commands of the TRIGger system

Command Parameter Unit Remarks

ABORt No query

INITiate

:CONTinuous[?] OFF | ON

:IMMediate No query

TRIGger

:ATRigger:STATe[?] OFF | ON

:COUNt[?]

:DELay[?] x to 100.0 s

:AUTO[?] OFF | ON

:HOLDoff[?] 0.0 to 10.0 s

:HYSTeresis[?] 0.0 to 3.0 dB

:IMMediate No query

:LEVel[?] x to y W

:SLOPe[?] POSitive | NEGative

:SOURce[?] BUS | EXTernal | HOLD | IMMediate | INTernal

1 to 2×10

9

ABORt

ABORt interrupts the current measurement and sets the sensor to the IDLE state (normal case).
However, if the sensor is in the cont inuous m easurem ent mode (setting INITiate:CONTinuous ON), the
IDLE state is immediately exited and the sensor enters the WAIT_FOR_TRIGGER state.

INITiate:CONTinuous[?] OFF | ON

INITiate:CONTinuous ON activates the continuous measurement mode. In this mode, a new
measurement is autom atically started whe n a measurement is terminated. The s ensor first enters the
WAIT_FOR_TRIGGER state and begins with the measurement as soon as the trigger condition is
fulfilled. Once the measurement is completed, the sensor again enters the WAIT_FOR_TRIGGER
state. The sensor will measure continuously assuming continuous trigger events.

In contrast, each meas urement cycle must be ex plicitly started with the INITiate:IMMediate command
after the INITiate:CONTinuous OFF command has been sent. After triggering and completion of the
measurement, the sensor en ters th e IDLE status a nd rem ains in th is status unti l a new m eas urem ent is
started with the INITiate:IMMediate command.

1137.7406.12 6.26 E-2

R&S NRP-Z11/-Z21 Remote Control - Commands

The query yields

• 1 for OFF,

• 2 for ON.

Default setting: OFF

INITiate:IMMediate

INITiate:IMMediate starts a single m easurem ent c ycle. The sensor f irst chan ges f rom the IDLE state to
the WAIT_FOR_TRIGGER state and begins with th e measurement as soon as the tr igger condition is
fulfilled. Once the measurement is completed, the sensor again enters the IDLE state. Since the
command is ignored during measurement, it normally has no effect in the continuous mode (setting
INITiate:CONTinuous ON).

TRIGger:ATRigger:STATe[?] OFF | ON

TRIGger:ATRigger:STATe ON causes an artificial tri gger event to be tr iggered if no trigger is recor ded
more than 10 s after the measurement has been started (only in the Scope mode).
TRIGger:ATRigger:STATe OFF deactivates the trigger automatic function.

The query yields

• 1 for OFF,

• 2 for ON.

Default setting: OFF

TRIGger:COUNt[?] 1 to 2 × 10

This setting is designed for applications in which several consecutive measurements have to be
performed by sending the INITiate:IMMediate command only once, e.g. to obtain a higher measurement
speed. The gap between a single meas urem ent and the contin uous m eas urem ent m ode is thus closed .
The number of measurements is defined with the parameter associated with the TRIGger:COUNt
command. This number equals the number of results yielded by the sensor at the end of the
measurement.

The TRIGger:COUNt command does not define the number of trigger events r equired for
performing the entire measurement task. The number may vary depending on the
measurement mode.

A further increase in th e measurement speed can be obtained by combining the mode
used with the buffered mode. The results are not made available immediately but as a
block at the end of the measurement sequence (see group commands
SENSe:POWer:AVG:BUFFer).

The query yields the num ber of measurements performed with the INIT:IMMediate command after a
measurement start.

Default setting: 1

9

1137.7406.12 6.27 E-2

Remote Control - Commands R&S NRP-Z11/-Z21

TRIGger:DELay[?] x to 100.0

TRIGger:DELay defines th e delay (in seconds) between the occurrence of the trigger event and the
beginning of the m easurement itself for the Timeslot and Scope m odes. This parameter is ign ored in
the Burst Average mode. Pretriggering is obtained by means of negative values; with bus-triggered
measurements (s ee TRIGger:SOURce), the param eter must be set to positive va lues or zero to avoid
measurement errors.

The query yields the set trigger delay for the Timeslot and Scope modes (in seconds).

Lower limit x of the parameter

Modes Continuous Av erage, Burst Average and Timeslot: x = –0.005
Mode Scope: x = – (<SENSe:TRACe:OFFSet:TIME> + 0.005)

Default setting: 0.0 [s]

TRIGger:DELay:AUTO[?] OFF | ON

TRIGger:DELay:AUTO ON ensures by means of an automatically determined delay that a
measurement is only started after the sens or has settled. T his is important when thermal sensors are
used. The automatic ally determined delay is ignor ed if a longer period was set with TRIGger:DELay.
This does not overwrite the value of TRIGger:DELay. TRIGger:DELay:AUTO OFF deactivates this
function.

The query yields

• 1 for OFF,

• 2 for ON.

Default setting: ON

TRIGger:HOLDoff[?] 0.0 to 10.0

TRIGger:HOLDoff suppresses trigg er events within the set h oldoff time (in s), s tarting from the tim e of
the last successful triggering.

The query yields the set holdoff time (in s).

Default setting: 0.0 [s]

TRIGger:HYSTeresis[?] 0.0 to 10.0

TRIGger:HYSTeresis sets the h ysteresis of the internal trigger threshold (parameter TRIGger:LEVel).
Hysteresis is the m agnitude (in dB) by which the trigger signal level falls belo w the trigger thres hold
(with positive trigger edge) to enable triggering again. The case is exactl y the opposite with a negative
trigger edge. The trigger hysteresis setting is only relevant to the INTernal trigger source.

The query yields the trigger hysteresis in dB.

Default setting: 0.0 [dB]

TRIGger:IMMediate

TRIGger:IMMediate triggers a generic trigger event that causes the sensor to exit immediately the
WAIT_FOR_TRIGGER state irrespective of the trigger source and the trig ger delay and begin with the

measurement. T he command is the onl y means of starting a measurem ent when the tr igger source is
set to HOLD.

1137.7406.12 6.28 E-2

R&S NRP-Z11/-Z21 Remote Control - Commands

TRIGger:LEVel[?] x to y

TRIGger:LEVel sets t he trigger thr eshold f or internal trig gering deri ved from the test signal (in W). This
setting is irrelevant to all other trigger sources.

The query yields the trigger threshold in W.

Lower limit x and upper limit y of parameter

SENSe:CORRection:OFFSet:STATe OFF: x = 500 × <lower test limit>

y = <upper test limit >

SENSe:CORRection:OFFSet:STATe ON: x = 500 × < lower test limit > ×

10^(<SENSe:CORRection:OFFSet> / 10)

y = < upper test limit > ×

10^(<SENSe:CORRection:OFFSet> / 10)

< lower test limit >: 200.0e-12 (with SENSe:CORRection:SPDevice:STATe OFF) or

entered lower test limit of sensor/twoport combination
(with SENSe:CORRection:SPDevice:STATe ON)

< upper test limit >: 0.2 (with SENSe:CORRection:SPDevice:STATe OFF) or entered

upper test limit of sensor/twoport combination
(with SENSe:CORRection:SPDevice:STATe ON)

Default setting: 10 × x

TRIGger:SLOPe[?] POSitive | NEGative

TRIGger:SLOPe defines the edge of the trigger event with internal and external triggering in the
Timeslot and Scope modes. In this conn ec tio n, p os it ive means increasing env el ope po wer (with internal

triggering) or incre a sing v olta ge ( with ex ter n al tr iggering). As in t he Bu rst Av erage mode, this comm and
has no effect in conjunction with trigger sources BUS, HOLD and IMMediate.

The query yields

• 1 for POSitive,

• 2 for NEGative.

Default setting: POSitive

TRIGger:SOURce[?] BUS | EXTernal | HOLD | IMMediate | INTernal

TRIGger:SOURce sets the trigger source.

• BUS: Triggering with command *TRG or TRIGger:IMMediate.

• EXTernal: Triggering via USB Adapter R&S NRP-Z3. Relevant trigger parameters:

TRIGger:DELay and TRIGger:SLOPe.

• HOLD: Triggering only with command TRIGger:IMMediate.

• IMMediate: Automatic triggering without explicit event.

• INTernal: Triggering by the measurement signal. Relevant trigger parameters:

TRIGger:LEVel, TRIGger:DELay and TRIGger:SLOPe (not in the Burst Average mode).

The query yields

• 1 for BUS,

• 2 for EXTernal,

• 4 for HOLD,

• 8 for IMMediate,

• 16 for INTernal.

Default setting: IMMediate

1137.7406.12 6.29 E-2

Remote Control - Commands R&S NRP-Z11/-Z21

List of Remote-Control Commands

The remote-control commands of the R&S NRP-Z11/-Z21 have a syntax based on standard SCPI

1999.0, but they comply with it only to a limited extent .

Table 6-9 List of remote-control commands

Command Parameter Unit Default setting Page

* Commands

*IDN? 6.2

*RST 6.2

*TRG 6.2

*TST? 6.2

CALibration Commands

CALibration:DATA[?] <calibrat i on data set as definite length

CALibration:DATA:LENGth? Bytes 6.3

CALibration:ZERO:AUTO[?] OFF | ON | ON C E OFF (fixed) 6.4

SENSe Commands

SENSe:AVERage:COUNt[?] 1 to 65536 4 6.7

SENSe:AVERage:COUNt:AUTO[?] OFF | ON | ONCE ON 6.7

SENSe:AVERage:COUNt:AUTO:MTIMe[?] 1.0 to 999.99 s 30.0 6.8

SENSe:AVERage:COUNt:AUTO:NSRatio[?] 0.0001 to 1.0 dB 0.01 6.8

SENSe:AVERage:COUNt:AUTO:RESolution[?] 1 to 4 3 6.8

SENSe:AVERage:COUNt:AUTO:SLOT[?] 1 to <SENSe:POWer:TSLot:AVG

SENSe:AVERage:COUNt:AUTO:TYPE[?] RESolution | NSRatio RESolution 6.9

SENSe:AVERage:RESet 6.9

SENSe:AVERage:STATe[?] OFF | ON ON 6.9

block>

16.8

:COUNt>

6.3

SENSe:AVERage:TCONtrol[?] MOVing | REPeat REPeat 6.9

SENSe:CORRection:DCYCle[?] 0.001 to 99.999 % 1.0 6.10

SENSe:CORRection:DCYCle:STATe[?] OFF | ON OFF 6.10

SENSe:CORRection:OFFSet[?] -200.0 to 200.0 dB 0.0 6.10

1137.7406.12 6.30 E-2

R&S NRP-Z11/-Z21 Remote Control - Commands

Command Parameter Unit Default setting Page

SENSe:CORRection:OFFSet:STATe[?] OFF | ON OFF 6.10

SENSe:CORRection:SPDev:STATe[?] OFF | ON OFF (can be

SENSe:FREQuency[?] 10.0e6 to 8.0e9 (NRP-Z11) or 18.0e9

(NRP-Z21)

SENSe:FUNCtion[?] "POWer:AVG" |

"POWer:TSLot:AVG" |
"POWer:BURSt:AVG" |
"XTIMe:POWer"

SENSe:POWer:AVG:APERture[?] 0.0001 to 0.3 s 0.02 6.13

SENSe:POWer:AVG:BUFFer:SIZE[?] 1 to 1024 1 6.13

SENSe:POWer:AVG:BUFFer:STATe[?] OFF | ON OFF 6.14

SENSe:POWer:AVG:SMOothing:STATe[?] OFF | ON ON 6.14

SENSe:POWer:BURSt:DTOLerance[?] 0.0 to 0.003 s 0.0001 6.14

SENSe:POWer:TSLot:AVG:COUNt[?] 1 to 128 8 6.15

SENSe:POWer:TSLot:AVG:WIDTh[?] 0.0001 to 0.1 s 0.001 6.15

SENSe:RANGe[?] 0 to 2 2 6.15

SENSe:RANGe:AUTO[?] OFF | ON ON 6.16

Hz 50.0e6 6.11

modified by the user)

"POWer:AVG" 6.12

6.11

SENSe:RANGe:AUTO:CLEVel[?] –20.0 to 0.0 dB 0.0 6.16

SENSe:SAMPLING[?] FREQ1 | FREQ2 FREQ1 6.16

SENSe:SGAMma:CORRection:STATe[?] OFF | ON OFF 6.16

SENSe:SGAMma:MAGNitude[?] 0.0 to 1.0 0.0 6.17

SENSe:SGAMma:PHASe[?] –360.0 to 360.0 degree 0.0 6.17

SENSe:TRACe:AVERage:COUNt[?] 1 to 65536 4 6.17

SENSe:TRACe:AVERage:COUNt:AUTO[?] OFF | ON | ONCE ON 6.17

SENSe:TRACe:AVERage:COUNt:AUTO
:MTIMe[?]

SENSe:TRACe:AVERage:COUNt:AUTO
:NSRatio[?]

SENSe:TRACe:AVERage:COUNt:AUTO
:POINt[?]

SENSe:TRACe:AVERage:COUNt:AUTO
:RESolution[?]

SENSe:TRACe:AVERage:COUNt:AUTO
:TYPE[?]

1.0 to 999.99 s 30.0 6.18

0.0001 to 1.0 dB 0.01 6.18

1 to <SENSe:TRACe:POINts> 1 6.18

1 to 4 3 6.18

RESolution | NSRatio RESolution 6.19

1137.7406.12 6.31 E-2

Remote Control - Commands R&S NRP-Z11/-Z21

Command Parameter Unit Default setting Page

SENSe:TRACe:AVERage:STATe[?] OFF | ON ON 6.19

SENSe:TRACe:AVERage:TCONtrol[?] MOVing | REPeat REPeat 6.19

SENSe:TRACe:MPWidth? s 6.19

SENSe:TRACe:OFFSet:TIME[?] – (<TRIGger:DELay> + 0.005) to

100.0

SENSe:TRACe:POINts[?] 1 to 1024 100 6.20

SENSe:TRACe:REALtime[?] OFF | ON OFF 6.20

SENSe:TRACe:TIME[?] 0.0001 to 0.3 s 0.01 6.20

SENSe:TIMing:EXCLude:STARt[?] 0.0 to 0.003 s 0.0 6.20

SENSe:TIMing:EXCLude:STOP[?] 0.0 to 0.003 s 0.0 6. 20

SYSTem Commands

SYSTem:INFO? [Item] 6.22

SYSTem:INITialize 6.23

SYSTem:MINPower? W 6.24

SYSTem:TRANsaction:BEGin 6.23

SYSTem:TRANsaction:END 6.24

Test Commands

s 0.0 6.19

TEST:SENSor? 6.25

Triggersystem Commands

ABORt 6.26

INITiate:CONTinuous[?] OFF | ON OFF 6.26

INITiate:IMMediate 6.27

TRIGger:ATRigger:STATe[?] OFF | ON OFF 6.27

TRIGger:COUNt[?]

TRIGger:DELay[?] x to 100.0 s 0.0 6.28

TRIGger:DELay:AUTO[?] OFF | ON OFF 6.28

TRIGger:HOLDoff[?] 0.0 to 10.0 s 0.0 6.28

TRIGger:HYSTeresis[?] 0.0 to 10. 0 dB 0.0 6.28

1 to 2×10

9

1 6.27

1137.7406.12 6.32 E-2

R&S NRP-Z11/-Z21 Remote Control - Commands

Command Parameter Unit Default setting Page

TRIGger:IMMediate 6.28

TRIGger:LEVel[?] x to y W 1.0e-6 6.29

TRIGger:SLOPe[?] POSitive | NEGative POSitive 6.29

TRIGger:SOURce[?] BUS | EXTernal | HOLD | IMMediate |

IMMediate 6.29

INTernal

SERVice Commands

SERVice:CALibration:DITHer ONCE OFF

SERVice:CALibration:DITHer:DATA? 0

SERVice:CALibration:TEMP ONCE OFF

SERVice:CALibration:TEMP:DATA? K 0.0

SERVice:CALibration:TEST[?] -1

SERVice:CALibration:ZERO:NEG0? 1

SERVice:CALibration:ZERO:POS0? 2

SERVice:CALibration:ZERO:NEG1? 3

SERVice:CALibration:ZERO:POS1? 4

SERVice:CALibration:ZERO:NEG2? 5

SERVice:CALibration:ZERO:POS2? 6

SERVice:DITHer OFF | ON ON

SERVice:MVCorrection[?] 0 to 63 63

SERVice:PARameter:RTEMp[?] <float value> K 0.0

SERVice:PARameter:RNULL0[?] <f l oat value>

SERVice:PARameter:RNULL1[?] <f l oat value>

SERVice:PARameter:RNULL2[?] <f l oat value>

SERVice:PARameter:RBAHN[?] <float value>

Ω

Ω

Ω

Ω

0.0

0.0

0.0

0.0

SERVice:PARameter:NREF[?] <float value> 0.0

SERVice:PARameter:ATHERM[?] <float value> K

-1

0.0

SERVice:PARameter:BTHERM[?] <float value> K 0.0

SERVice:PARameter:CTHERM[?] <float value> K

SERVice:PARameter:DTHERM[?] <float value> K

-1

0.0

-1

0.0

1137.7406.12 6.33 E-2

Remote Control - Commands R&S NRP-Z11/-Z21

Command Parameter Unit Default setting Page

SERVice:PARameter:CJUNC[?] <float value> F 0.0

SERVice:RCount[?] 1 to 32767 0

SERVice:RESult[?] 0.0 to 1.0e6 W 0.0

SERVice:SAMPle[?] 0 to 99999999 1000

SERVice:TDEScriptor?

SERVice:TDEScriptor:LENGth? Bytes

SERVice:UNLock 1234

1137.7406.12 6.34 E-2

Service Instructions

Test and Measurement
Division

1137.7406.82

R&S NRP-Z11/-Z21 Contents

Contents

1 Performance Test...............................................................................................................1.1

Preliminary Remarks....................................................................................................................... 1.1

Test Instructions..............................................................................................................................1.1

Measuring Equipment and Accessories .......................................................................................1.1

Performance Test ............................................................................................................................1.2

with Calibration Kit NRVC and Calibration Software Recal ........................................................1.2

Performance Test with Other Measuring Equipment...................................................................1.2

Checking Absolute Measuring Accuracy ................................................................................... 1.2

Checking the Linearity................................................................................................................1.3

Checking Matching.....................................................................................................................1.4

Quick Test......................................................................................................................................... 1.5

Test Instructions......................................................................................................................... 1.5

Measuring Equipment and Accessories Required for the Quick Test....................................... 1.6

Checking Zeroing....................................................................................................................... 1.6

Checking the Absolute Measuring Accuracy............................................................................. 1.7

Checking the Linearity................................................................................................................1.7

Checking Input Resistance ........................................................................................................1.8

Test Report ................................................................................................................................ 1.9

2Adjustment............................................................................................................................2.1

Preliminary Remarks....................................................................................................................... 2.1

3 Repair of Sensors R&S NRP-Z11/-Z21...................................................................... 3.1

Design and Circuit Description......................................................................................................3.1

Block Diagram............................................................................................................................ 3.1

Description of Block Diagram..................................................................................................... 3.2

Microwave Detector........................................................................................................ 3.2

Analog Board..................................................................................................................3.3

Digital Board...................................................................................................................3.3

1137.7406.82 I-1 E-1

Contents R&S NRP-Z11/-Z21

Module Replacement.......................................................................................................................3.4

Tools Required............................................................................................................... 3.4

List of Modules........................................................................................................................... 3.6

Opening and Reassembly (Exchang e of Plas tic She ll Halves) ..................................... 3.7

Replacement of Sensor Cable W1............................................................................................. 3.9

Removing the Sensor Cable .......................................................................................... 3.9

Installing the Sensor Cable ............................................................................................ 3.9

Troubleshooting ............................................................................................................................ 3.10

Overview of Errors, Causes and Corrective Steps .................................................................. 3.11

4 Firmware Update/Installation of Options................................................................. 4.1

Installation of New R&S NRP-Z11/-Z21 Software.......................................................................... 4.1

Hardware and software requirements........................................................................................ 4.1

Preparation................................................................................................................................. 4.2

Updating the application firmware..............................................................................................4.3

Updating the boot loader............................................................................................................4.4

5 Documents............................................................................................................................ 5.1

Shipping of Instrument and Ordering of Spare Parts.................................................................. 5.1

Shipping of Instrument...............................................................................................................5.1

Ordering Spare Parts .................................................................................................................5.1

Ordering Replacement Sensors................................................................................................. 5.2

Spare Parts.......................................................................................................................................5.3

1137.7406.82 I-2 E-1

List of figures and tables R&S NRP-Z11/-Z21

Figures

Fig. 1-1 Connection of DUT for measuring the input resistance ................................................... 1.8

Fig. 3-1 Block diagram of Sensors R&S NRP-Z11 and R&S NRP-Z21 ........................................3.1

Fig. 3-2 Membrane cables............................................................................................................. 3.5

Fig. 3-3 Opening the sensor.......................................................................................................... 3.7

Fig. 3-4 Replacement of sensor cable........................................................................................... 3.9

Tables

Table 1-1 Calibration powers............................................................................................................ 1.2

Table 1-2 Expanded calibration uncertainties of Sensors R&S NRP-Z11/-Z21 (in dB) ...................1.2

Table 1-3 Max. measurement error (in dB) between meas. paths 1 and 2

at –20 dBm (10 µW).........................................................................................................1.3

Table 1-4 Expanded linearity uncertainties of Sensors R&S NRP-Z11 and

R&S NRP-Z21 at 50 MHz (in dB, with reference to 0 dBm)............................................. 1.3

Table 1-5 Max. SWR of Sensors R&S NRP-Z11 and R&S NRP-Z21.............................................. 1.4

Table 2-1 Uncertainty of power calibration system at 0 dBm (in dB, including mismatch) .............. 2.1

Table 3-1 Assignment of flexstrip connector W3.............................................................................. 3.2

Table 3-2 List of modules/spare parts for R&S NRP-Z11 and R&S NRP-Z21................................. 3.6

1137.7406.82 I-3 E-1

R&S NRP-Z11/-Z21 Preliminary Remarks

1 Performance Test

Preliminary Remarks

Verifying the data sheet specifications for the Power Sensors R&S NRP-Z11 and R&S NRP-Z21
requires a considerable amount of equipment an d c ar e. R ohd e & Sc h warz therefore recommends using
the Power Calibration System R&S NRVC or corresponding equipm ent that yields the sam e accuracy.
The tests are to be carried out directly at the manufacturer, its representatives or subsidiaries or at
calibration sites that are equipped accordingly.

A quick test (see page 1.5) is recommended for checking the sensor with simple means.

Test Instructions

• The tests are to be performed at an ambient temperature of 20°C to 25°C. The DUT should be

connected to the (activated) R&S NRP base unit for at least 30 minutes before the tests are
performed.

• The test limits used in the following sections are based on the data sheet for the sensors

R&S NRP-Z11 and R&S NRP-Z21. The test limits are valid only on the conditions defined in the
corresponding test step. T hey are theref ore not legal l y bindin g as acc urac y specif ications ; onl y data
sheet specifications are legally binding.

Measuring Equipment and Accessories

Item Type of unit Recommended characteristics Recommended

1 Power calibration

system

2 Linearity

calibration system

3 Network analyzer 10 MHz to 18 GHz

4 Controller

5 Power meter To connect the DUT R&S NRP 1143.8500.02

1

10 MHz to 18 GHz
Calibration level 0 dBm

-30 dBm to +23 dBm
Test frequency 50 MHz

Test port: N connector
PC with IEC/IEEE-bus card (NI) In connection with

units

R&S NRVC
R&S NRVC-B1
R&S SMP02
R&S NRVD
R&S NRVC-B2
R&S SMGL
R&S ZVM 1127.8500.60 Matching

R&S order
number

1109.0500.02

1109.1007.02

1035.5005.02

0857.8008.02

1109.1207.02

1020.2005.52

Application

Absolute measuring
accuracy

Linearity

R&S NRVC and
R&S NRVC-B2

Absolute measuring
accuracy

1 For program-controlled calibration in connection with Calibrati on Kit R&S NRVC and Calibrati on Software Recal.

1137.7406.82 1.1 E-1

Performance Test R&S NRP-Z11/-Z21

Performance Test
with Calibration Kit NRVC and Calibration Software Recal

For detailed inform ation about the performance test, ref er to the operating manual for Calibr ation Kit
R&S NRVC.

SWR measurement has to be carried out on a separate network ana lyzer. Evaluation is performed by
Calibration Software Recal.

Performance Test with Other Measuring Equipment

Checking Absolute Measuring Accuracy

The sensor contains three measurement paths. Individual calibration factors are stored for these
measurement paths in th e sensor. The measurem ent paths therefore have t o be checked separ ately.
(Table 1-1 and Tabl e 1-2). The m aximum perm issible error depends on the calibration uncertaint ies of
the sensor (Table 1-2) and the uncertaint ies of the calibration system. It is recom mended to combine
both uncertainties according to the RS S method (s quare root based on the sum of squares ) and to use
the expanded combined uncertainty as the test limit.

To calibrate measurem ent path 1, the measurement result of meas urement path 2 can be used if the
calibration system does not provide a ca libration p ower of 10 µW or if its uncertaint y is too hig h. In this
case, only the displayed difference between the two measurement paths will be checked (Table 1-3).

Table 1-1 Calibration powers

Measurement path Power measurement range Calibration power

1 200 pW to 50 µW (-67 dBm to -13 dBm) 10 µW
2 20 nW to 5 mW (-47 dBm to +7 dBm) 1 mW
3 2 µW to 200 mW (-27 dBm to +23 dBm) 1 mW

Table 1-2 Expanded calibration uncertainties of Sensors R&S NRP-Z11/-Z21 (in dB)

Frequency

Measurement path

1 0.056 0.056 0.066 0.083 0.094 0.123
2 0.047 0.047 0.057 0.071 0.076 0.099
3 0.048 0.047 0.057 0.072 0.076 0.099

10 MHz to

<20 MHz

20 MHz to
<100 MHz

100 MHz to

4 GHz

>4 GHz to

8 GHz

>8 GHz to

12.4 GHz

Only R&S NRP-Z21

>12.4 GHz to

18 GHz

Calibration frequencies: 10 MHz, 15 MHz, 20 MHz, 30 MHz, 50 MHz, 100 MHz;

from 250 MHz to 18 GHz in 250 MHz steps.

1137.7406.82 1.2 E-1

R&S NRP-Z11/-Z21 Performance Test with Other Measuring Equipment

Table 1-3 Max. measurement error (in dB) between meas. paths 1 and 2 at –20 dBm (10 µW)

Frequency

Measurement error

10 MHz to

<20 MHz

0.045 0.044 0.048 0.054 0.063 0.079

20 MHz to
<100 MHz

100 MHz to

4 GHz

>4 GHz to

8 GHz

>8 GHz to

12.4 GHz

Only R&S NRP-Z21

>12.4 GHz to

18 GHz

Procedure:

• Perform zeroing (without power applied).

• Set measurement path in Sensor – Range menu on the R&S NRP.

• Set calibration frequency in Frequency menu on the R&S NRP.

• Read power on the R&S NRP and compare with p ower value of calibr ation system. At least three

measurements are recommended, with the sensor set to a different position with respect to the
output connector of the calibration system each time.

Checking the Linearity

The linearity check is performed at 50 MH z with autoranging act ivated. The referenc e power is 1 mW
(0 dBm). The maximum permissible linearity error depends on the linearity uncertainty of the sensor
(Table 1-4) and the l inearity uncertaint y of the calibration s ystem. It is recommended to combine bot h
uncertainties according to the RSS m ethod (square root based on the s um of squares) and to use the
expanded combined uncertainty as the test limit.

Table 1-4 Expanded linearity uncertainties of Sensors R&S NRP-Z11 and R&S NRP-Z21 at

50 MHz (in dB, with reference to 0 dBm)

Test level -30 dBm to -13 dBm -13 dBm to +1 dBm +1 dBm to +23 dBm

Uncertainty

0.044 0.022 0.044

Calibration levels: -30 dBm, -25 dBm, -20 dBm, -15 dBm, -10 dBm, -5 dBm, 0 dBm,

+5 dBm, +10 dBm, +15 dBm, +20 dBm, +23 dBm

Procedure:

• Perform zeroing (without power applied).

• Set autoranging in Sensor – Range menu on the R&S NRP.

• Set 50 MHz in Frequency menu on the R&S NRP.

• Appl y level of 0 dBm and activate Relati ve On in the Measurement menu on th e R&S NRP. Use

the current measurement value as the reference value (Reset) . Set un it to dB.

• Set the ca libration leve l and compar e the relative le vel measur ed by the R&S NRP with that of the
calibration system.

1137.7406.82 1.3 E-1

Performance Test with Other Measuring Equipment R&S NRP-Z11/-Z21

Checking Matching

For these measurements, the sensor can be operated with or without the R&S NRP base unit. The
measurement procedure depends on the network analyzer used.

Table 1-5 Max. SWR of Sensors R&S NRP-Z11 and R&S NRP-Z21

Frequency

Max. SWR

10 MHz to

<30 MHz

1.13 1.11 1.18 1.23 1.23

30 MHz to

2.4 GHz

>2.4 GHz to

8 GHz

>8 GHz to

12.4 GHz

Only R&S NRP-Z21

>12.4 GHz to

18 GHz

1137.7406.82 1.4 E-1

R&S NRP-Z11/-Z21 Quick Test

Quick Test

The following tests are used to check the R&S NRP-Z11 and R&S NRP-Z21 with s imple means. If the
tests are passed, compliance of the sensors with the specifications with in the complete fr equency and
power range is largely ensured.

The test consists of:

• Zeroing.

• Absolute measuring accuracy at 0 dBm (50 MHz).

• Linearity when changing the measurement path (50 MHz).

• Input resistance (for DC voltage/current).

Test Instructions

• The tests are to be performed at an ambient temperature of 15°C to 35°C. The DUT should be

connected to the (activated) R&S NRP base unit for at least 30 minutes before the tests are
performed.

• The test limits used in the following sections are b ased on the data s heet but are valid only on the

conditions defined for the corresponding test step. They are therefore not binding as far as accuracy
is concerned but are strictly data sheet information.

• The entries made on the Power Meter R&S NRP are abbreviated as follows:

[<KEY>] Press front-panel key, e.g. [FREQ].
[<SOFTKEY>] Press softkey, e.g. [Range].
[<nn unit>] Enter value and confirm with unit, e.g. [3 GHz].
Successive entries are separat ed b y [:], e.g. [ FREQ : 3 GHz ].

1137.7406.82 1.5 E-1

Quick Test R&S NRP-Z11/-Z21

Measuring Equipment and Accessories Required for the Quick Test

Item Type of unit Recommended characteristics Recommended

1 Power meter For connecting the DUT

with power reference 1 mW / 50 MHz
Expanded uncertainty <1.2 %

2 Signal

generator

3 System

voltmeter

4 Adapter BNC (plug) to 4-mm sockets (2-pin). 0017.6742.00 Input resistanc e
5 Adapter BNC (socket) to N (socket). Input resistance

50 MHz
Output level -20 dBm ... 0 dBm

4-wire resistance measurement at
50 Ω

Expanded measurement uncertainty
<0.2 Ω

units

R&S NRP
R&S NRP-B1

R&S SML01 1090. 3000. 11 Linearity

R&S order
number

1143.8500.02

1146.9008.02

Application

Absolute measuring
accuracy

Linearity

Input resistance

Checking Zeroing

Test setup - Sensor (DUT) is connec ted to p ower refer ence output of po wer

meter (1).

- Power reference is switched off.

Settings on R&S NRP - [ (PRE)SET: (PRE)SET ]

- [ ZERO/CAL: ZERO/CAL ]

Test - Message "Zeroing A(B) successful".

- Display value is within limits of test report.

1137.7406.82 1.6 E-1

R&S NRP-Z11/-Z21 Quick Test

Checking the Absolute Measuring Accuracy

Test setup - Sensor (DUT) is connected to power reference output.

- Power reference is switched off.

Setting on R&S NRP - [ (PRE)SET: (PRE)SET: System: Power Ref On ]

Test - Display value is within the limits of test report.

Checking the Linearity

Test setup -Sensor is connected to signal generator output
Setting on signal generator - Frequency 50 MHz, output level -20 dBm, unmodulated.

Setting on R&S NRP - [ (PRE)SET: (PRE)SET: Sensor: Range: Auto
Measurement - On R&S NRP, approx. -20 dBm must be displayed.

Setting on R&S NRP - [ Measurement: Relative On: Reset]
Measurement - On R&S NRP, 0.00 dB must be displayed.

Setting on R&S NRP - [ Sensor: Range: Auto
Test - Displayed value is within limits of Performance Test Report.

Setting on signal generator - Frequency 50 MHz, output level 0 dBm, unmodulated.

Setting on R&S NRP - [ Sensor: Range: Auto
Measurement - On R&S NRP, approx. 0 dBm must be displayed.

Setting on R&S NRP - [ Measurement: Relative On: Reset]
Measurement - On R&S NRP, 0.00 dB must be displayed.

Setting on R&S NRP - [ Sensor: Range: Auto

: Path 2]

: Path 2]

: Path 3]

: Path 1]

Test - Displayed value is within limits of Performance Test Report.

1137.7406.82 1.7 E-1

Quick Test R&S NRP-Z11/-Z21

Checking Input Resistance

Test setup - System voltm eter is set to 4-wir e im pedance measurement and

is connected to DUT according to figure.

Fig. 1-1 Connection of DUT for measuring the input resistance

Test - Check input resist ance of sensor for compliance with limits of

test report.

1137.7406.82 1.8 E-1

R&S NRP-Z11/-Z21 Quick Test

Test Report

Quick test

Power Sensor R&S NRP-Z11

Stock number: 1138.3004.02 Name: ............................

Serial number: ...................... Date: ............................

Item

no.

1 Zeroing ------- -67.0 dBm

2 Absolute measuring accur.

at 0 dBm / 50 MHz

3

Linear. of meas. path 1 → 2

4

Linear. of meas. path 2 → 3

5 Input resistance 50.2 51.8

Characteristic Min. value Actual value Max. value Unit

-0.10 +0.10 dBm

-0.10 +0.10 dB

-0.10 +0.10 dB

Quick test

Power Sensor R&S NRP-Z21

Stock number: 1137.6000.02 Name: ............................

Serial number: ...................... Date: ............................

Item

no.

Characteristic Min. value Actual value Max. value Unit

Ω

6 Zeroing ------- -67.0 dBm

7 Absolute measuring accur.

at 0 dBm / 50 MHz

8

Linear. of meas. path 1 → 2

9

Linear. of meas. path 2 → 3

10 Input resistance 50.2 51.8

-0.10 +0.10 dBm

-0.10 +0.10 dB

-0.10 +0.10 dB

Ω

1137.7406.82 1.9 E-1

R&S NRP-Z11/-Z21 Preliminary Remarks

2 Adjustment

Preliminary Remarks

The Sensors R&S NRP-Z11 and R&S NRP-Z21 cannot be adj usted manually but have to be adjusted
by updating the calibration data in the memory. Calibration Software Recal, which is part of the
equipment supplie d with t he Cal ibrat io n K it R & S NR VC, is ther ef or e re quired. The m eas ur ement results
for the absolute calibration of the three measurement paths which can be obtained during a
performance test (see Section 1) form the basis of the adjustm ent. The Calibration Kit R&S NR VC is
recommended but is not mandatory.

To ensure that the measuring accur acy corresponds t o the data sheet values after the adjustment, the
calibration system must not have any inaccuracies that are higher than those given in the table below.

Table 2-1 Uncertainty of power calibration system at 0 dBm (in dB, including mismatch)

Frequency

10 MHz to

<20 MHz

0.04 0.04 0.05 0.065 0.07 0.09

20 MHz to
<100 MHz

100 MHz to

4 GHz

>4 GHz to

8 GHz

>8 GHz to

12.4 GHz

Only R&S NRP-Z21

>12.4 GHz to

18 GHz

For further details, re f er to the operating manua l f or the Calibration Kit R&S NR VC or t he onl in e he lp for
the Recal program.

1137.7406.82 2.1 E-1

R&S NRP-Z11/-Z21 Design and Circuit Description

3 Repair of Sensors R&S NRP-Z11/-Z21

This section describes the des ign and simple measures for repairing and determining f aults as well as
the replacement of modules.

The firmware update is explained in section 4 of this service manual.

Design and Circuit Description

Block Diagram

A3

NRP-Z11
8 GHZ DETEKTOR

1138.3085.02
NRP-Z21

18 GKZ DETEKTOR

1137.6080.02

A2
ANALOG BOARD

1137.6900.02

A1
DIGITAL BOARD

1137.6800.02

Fig. 3-1 Block diagram of Sensors R&S NRP-Z11 and R&S NRP-Z21

1137.7406.82 3.1 E-1