HP (Hewlett-Packard) 11793A User Manual
OPERATING
AND
SERVICE
MANUAL
HP
M
I
C
11793A
R
0
WAVE
CONVERTER
September
1 1793-9001 1
111111111111111111111111111111111111111111111111111111111111ll111
1990
HEWLETT
PACKARD
CERTl FlCATlON
Hewlett-Packard Company certifies
from the factory. Hewlett-Packard further certifies that its calibration measurements are traceable to the United
States National Bureau of Standards, to the extent allowed by the Bureau’s calibration facility, and to the
calibration facilities of other International Standards Organization members.
that
this
product met its published specifications
ut
the time of shipment
WARRANTY
This Hewlett-Packard instrument product
of
of one year from date
shipment. During the warranty period, Hewlett-Packard Company will at its option,
is
warranted against defects in material and workmanship for a period
either repair or replace products which prove to be defective.
For warranty service or repair, this product must be returned
HP
prepay shipping charges to HP and
shall pay shipping charges
shall pay all shipping charges, duties, and taxes for products returned
HP warrants that its software
and
firmware designated by HP for use with an instrument will execute
to
a service facility designated by HP. Buyer shall
to
return the product
to
HP from another country.
to
Buyer. However, Buyer
its
programming instructions when properly installed on that instrument. HP does not warrant that the operation
of the instrument, or software, or firmware will be uninterrupted or error free.
LIMITATION OF WARRANTY
The foregoing warranty shall not apply
Buyer-supplied software or interfacing, unauthorized modification or misuse, operation outside
to
defects resulting from improper or inadequate maintenance by Buyer,
of
the environmental
specifications for the product, or improper site preparation or maintenance.
NO OTHER WARRANTY
IS
EXPRESSED OR IMPLIED. HP SPECIFICALLY DISCLAIMS THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
EXCLUSIVE
REMEDIES
THE REMEDIES PROVIDED HEREIN ARE BUYERS SOLE AND EXCLUSIVE REMEDIES. HP SHALL
NOT BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES, WHETHER BASED ON CONTRACT, TORT, OR ANY OTHER LEGAL THEORY.
ASSISTANCE
Product maintenance agreements and other customer assistance agreements are available
products.
For
any assistance, contact your nearest Hewlett-Packard Sales and Service Office. Addresses are provided at
this
the back of
manual.
for
Hewlett-Packard
e.
,
.'::is:.
.*a*..
:
-
:
.
Ag
i
I
en
t
.
Innovating the
June
8,2000
Dear Customer,
Techno
HP
Io
Way
g
i
es
Agilent Technologies.
24001
E
Mission
Liberty take, WA
Inc
99019
www
agilent
corn
As of November
semiconductor products, health care solutions, and chemical analysis became a new company,
Agilent Technologies. Now, many of your Hewlett-Packard products and services are in the care of
Agilent Technologies.
At Agilent Technologies, we are working diligently to make this transition as smooth as possible for
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HP
11793A
MICROWAVE
CONVERTER
EAST 24001
SERIAL
This manual applies directly to instruments with serial
numbers prefixed 2520A.
With changes described
also applies
2407A.
fixed
For
additional important information about serial
numbers, see INSTRUMENTS
MANUAL in Paragraph
MISSION
to
instruments with serial numbers pre-
OHEWLElT-PACKARD COMPANY 1985
AVENUE, TAF C-34, SPOKANE, WASHINGTON, U.S.A., 99220
NUMBERS
in
Paragraph
COVERED
4.
First Edition
31,
this manal
BY
THIS
Operating and Service Manual Part
Microfiche Operating and Service Manual Part
No.
11793-90011
No.
11793-90012
Printed.
MAY
1985
1
Regulatory
Information
(Updated
March
1999)
1
Regulatory Information (Updated March
1999)
Safety Considerations
GENERAL
This product and related documentation must be reviewed for familiarization with safety
markings and instructions before operation.
This product
"Safety Requirements for Electronic Measuring Apparatus," and
safe condition. This instruction documentation contains information and warnings which
must be followed by the
condition.
SAFETY EARTH
A
uninterruptible safety
product input wiring terminals, power cord, or supplied power cord set.
SAFETY
A
Indicates instrument damage can occur if indicated operating limits are exceeded.
A
Indicates hazardous voltages.
1-
Indicates
WARNING
has
been designed and tested
user
to ensure safe operation and to maintain the product in a safe
GROUND
earth
ground must be provided
SYMBOLS
earth
(ground) terminal
A
WARNING
practice, or the like, which,
could result in personal injury.
sign
until the indicated conditions are fully understood and met.
note denotes a hazard. It calls attention to a procedure,
in
accordance
if
not correctly performed or adhered to,
Do
with
IEC
Publication
has
been supplied in
from
the
main
power source to the
not proceed beyond a
WARNING
1010,
a
CAUTION
A
CAUTION
procedure, practice, or the like, which, if not correctly performed or adhered
to, could result in damage to or destruction of part or
not proceed beyond
understood and met.
note denotes a hazard.
an
CAUTION note
It
calls attention to an operation
all
of the product.
until
the indicated conditions are fully
Do
2
Chapter
1
Safety Considerations for this Instrument
Regulatory Information (Updated March
1999)
WARNING
This product
is
a
Safety Class I instrument (provided with a
protective earthing ground incorporated in the power cord). The
in
mains plug shall only be inserted
a socket outlet provided with
protective earth contact. Any interruption of the protective
conductor inside or outside
of
the product is likely to make the
product dangerous. Intentional interruption is prohibited.
Whenever it
is
likely that the protection has been impaired, the
instrument must be made inoperative and be secured against any
unintended operation.
If
this instrument is to be energized via an auto transformer (for
voltage reduction), make sure the common terminal
is
connected to
the earth terminal of the power source.
If
this product
the equipment could be impaired. This product must be used in
normal condition (in which all means
No
operator serviceable parts in this product. Refer servicing to
is
not used as specified, the protection provided by
for
protection are intact) only.
a
qualified personnel. To prevent electrical shock, do not remove
covers.
Servicing instructions are
for
use by qualified personnel only.
To
avoid electrical shock, do not perform any servicing unless you are
qualified to do
so.
a
The opening of covers
dangerous voltages. Disconnect the product
while it
The power cord
live for
is
being opened.
is
5
seconds after disconnecting the plug from
or
removal of parts is likely to expose
from
all
voltage sources
connected to internal capacitors that my remain
its
power supply.
For Continued protection against fire hazard, replace the line fuse(s)
only with
example, normal blow or time delay).
250
V
fuse(s)
or
the same current rating and type
Do
not use repaired fuses
(for
or
short circuited fuseholders.
Always
use the three-prong ac power cord supplied with this
product. Failure to ensure adequate earth grounding by not using
this cord may cause product damage.
This product
Pollution Degree
INDOOR
USE
is
designed
2
ONLY.
per
for
IEC
use in Installation Category
1010
and
IEC
664
respectively.
I1
and
FOR
This product has autoranging line voltage input, be sure the supply
voltage
is
within the specified range.
3
Regulatory
information
(Updated
March
1999)
To prevent electrical shock, disconnect instrument
before cleaning.
to clean the external case parts.
Ventilation Requirements: When installing the product in a cabinet,
the convection into and out
The ambient temperature (outside the cabinet) must be less than the
maximum operating temperature
watts dissipated in the cabinet.
cabinet
used.
Product
Markings
CE - the CE mark
accompanied by
CSA - the
CSA
a
mark
Use
a
is
greater than
is
a
registered trademark
dry cloth
800
or
one slightly dampened with water
Do
not attempt to clean internally.
of
the product must not be restricted.
of
the product by
If
the total power dissipated in the
watts, then forced convection
of
the European Community. A CE mark
year indicated the year the design was proven.
is
a
registered trademark
of
the Canadian Standards Association.
from
4"
C
mains (line)
for
every
must
be
100
4
Chapter
1
Model
Safety Considerations
SAFETY
CONSIDERATIONS
GENERAL
This product and related documentation must be
reviewed before operation for familiarization with
and
safety markings
This product
vided with
is
a
protective earth terminal).
instructions.
a Safety Class I instrument (pro-
BEFORE APPLYING POWER
Verify that the product
line voltage and the correct fuse is installed.
is
set
to
match the available
SAFETY EARTH GROUND
An uninterruptible safety earth ground must be
to
provided from the main power source
uct input wiring terminals, power cord, or supplied
power cord set.
the prod-
SAFETY SYMBOLS
Instruction manual symbol: the product
A
will be marked with this symbol when
necessary for the user
manual (refer
to
Table of Contents).
Indicates hazardous voltages.
to
refer
to
the instruction
it
is
f
1,
Indicates earth (ground)
-
The WARNING sign denotes
hazard. It calls attention to a
procedure, practice, or the like, which,
or
rectly performed
sonal injury.
sign until the indicated conditions are
stood and met.
operating procedure, practice, or the like, which,
not correctly performed or adhered
in
damage
product.
until the indicated conditions are fully understood
and met.
Do
to
Do
not proceed beyond a CAUTION sign
adhered
not proceed beyond a WARNING
The CAUTION sign denotes
hazard. It calls attention
or destruction of
terminal.
if
not cor-
to,
could result in per-
fully
to,
could result
part
or
all
under-
to
an
if
of the
a
a
I
WARNING
Interrupting
(inside
the protective earth terminal will cause a potential
shock
hazard that could result
(Grounding one conductor of a two conductor outlet
is
not sufficient protection).
Whenever
impaired,
tive and be secured against any unintended
operation.
If
this
transformer (for voltage reduction), make sure the
common terminal
nal of
Servicing instructions are
service-trained personnel only.
electric shock, do not perform any servicing unless
qualified to do
Adjustments described
formed with power supplied to the instrument
while protective covers are removed. Energy available at many points may,
sonal
injury.
Capacitors inside the instrument may still be
charged even
nected from its source of supply.
For
continued protection against fire hazard, re-
place
the
same current rating and type (for example, normal
blow, time delay, etc.).
or
short-circuited fuseholders.
the
protective (grounding) conductor
or
outside
it
the
instrument
the
power source.
line fuse(s) only with
the
instrument)
is
likely that
instrument
is
to be energized via an auto-
is
connected to the earth termi-
so.
if
the instrument
Do
1
or
disconnecting
in
personal injury.
the
protection has been
must
be made inopera-
for
use by
To
avoid dangerous
in the
if
manual are per-
contacted, result
has
250V
not use repaired fuses
in
been discon-
fuse(s) of the
per-
..
11
Microwave
Converter
MODEL 11793A
Model
11793A
--
IF
INPUT CABLE
(HP Part Number 11 793-60006)
FREQUENCY CONTROL CABLE
(HP Part Number 8120-1838)
LO INPUT CABLE
(HP Part Number 11793-60009)
0
Figure
1.
HP
Model
LINE POWER CABLE
II793A
Microwave
Converter
with
Accessory
Cables
Model
1.
1
1793A
GENERAL INFORMATION
Microwave Converter
This Operating and Service Manual contains information about initial inspection, operation, performance
tests, adjustments, troubleshooting and repair of the
2,
Specifications
The
HP 1 1793A
Microwave Converter does not have "hard specifications" against which the instrument
can be tested for performance standards or limits. Instead, the Local Oscillator
listed in Table
1.
These requirements are the performance standards or limits against which the
instrument can be tested. The supplemental characteristics listed in Table
HP
Model
1
1793A
Microwave Converter.
(LO)
Requirements are
2
are not warranted
requirements but are typical characteristics included as additional information for the user.
LO
Amplitude Range
+8
dBm to
$7
dBm to
0 dBm to
+13
+13
+5
dBm
dBm
dBm
Table
RF
Input Connector:
LO
Input Connector:
IF
Output Connector:
Frequency
18
18
2.
Supplemental Characteristics
2
(GHz)
to
18
to
26.5
to
26.5
Precision
Precision
Type-N female
Rear Panel Control Connector:
Dimensions:
Height:
Width:
Depth:
HP System
Height:
Width:
Depth:
88
mm
(3.5
425
mm
(16.7
528
mm
(20.8
II
Module Size:
88
mm
(3.5
1
Modular Width
508
mm
(20
in.)
in.)
in.)
Without Option
Without Option
With Option
3.5
3.5
BNC
in.)
in.)
mm male
mm male
female
Conditions
001, 011
001, 011
001, 011
or
or
or
021
021
021
1
Microwave Converter Model 11793A
3.
Safety Considerations
This product
Microwave Converter and all related documentation must be reviewed before operation for complete
familiarization with safety markings and instructions. Refer to the Safety Considerations page found at
the beginning of this manual for a summary of the safety information. Safety information pertinent to
the task at hand (that is, installation, operation, performance testing, or service) is found throughout this
manual.
Instruments Covered
4.
This instrument has a two-part serial number. The first four digits and the letter comprise the serial
number prefix. The prefix
to the instrument. The last five digits form a sequential suffix which is unique to each instrument. The
contents of this manual apply directly to instruments having the serial prefix listed under Serial Numbers
on the title page.
An instrument manufactured after the printing of this manual may have a serial prefix that is not listed
on the title page. This unlisted serial prefix indicates that the manual for this instrument is supplied with
a Manual Changes supplement that documents the differences.
In addition to change information, the supplement may contain information for correcting errors in the
manual. To keep this manual as current and accurate as possible, Hewlett-Packard recommends that you
periodically request the latest Manual Changes supplement. The supplement is identified with the manual
print date and part number that appear on the title page. Complimentary copies of the supplement are
available on request from your nearest Hewlett-Packard office.
is
a Safety Class I instrument; that is, one provided with a prctective earth terminal. The
by
This Manual
is
the same for all identical instruments; it changes only when a change is made
For information concerning a serial prefix not listed on the title page or in the Manual Changes
supplement, contact your nearest Hewlett-Packard office.
5.
Description
The HP Model 11793A Microwave Converter down-converts microwave input signals in the range from
1.3 to 26.5 GHz. For frequencies below 1.3 GHz, signals are routed directly to the input of the measuring
instrument. Instruments suitable for lower frequency measuring are the HP
or the HP 8902A Measuring Receiver.
For input signals above 1.3 GHz, the Microwave Converter routes the signal through an internal mixer
which mixes the input signal with an external local oscillator. The difference frequency (that is, the
intermediate frequency or
should be between 10 and 700 MHz.
The Microwave Converter requires a +8 dBm leveled output from the LO. For
power above 18 GHz, an optional internal amplifier
instrument controls switching of the RF path and of the
Microwave Converter.
IF)
is filtered, amplified, and then appears at the
(1
8
GHz to 26.5 GHz) is available. The measuring
LO
amplifier via a rear-panel connection on the
890
1B
Modulation Analyzer
IF
OUTPUT connector. The
LOs
with insufficient
IF
2
Model 11793A Microwave Converter
6.
Options and Accessories
Electrical Options
The options are summarized in Table
Option
Option
Option
Option
Option
001.
010.
011.
020.
021.
Adds an 18 to 26.5
Moves the LO INPUT to the right side of the front panel.
Moves the
LO
amplifier.
Moves all front-panel connectors to the rear panel.
Moves all front-panel connectors to the rear panel and adds the 18 to 26.5 GHz
amplif ier.
1
Not
LO
INPUT to the right side of the front panel and adds the 18 to 26.5
LO
Amplifier
installed Standard Option
installed Option
I
I
3.
The following list describes each option:
GHz
LO
amplifier to the standard instrument.
Table
3.
HP
11
793A Option
Front-Panel Placement Rear Panel
of
LO
Input Placement
Len Side Right Side
001
Option
Guide
010
011
All
Connectors
Option
Option 021
GHz
LO
for
020
Mechanical Options
Instruments with Serial Prefix 2407A have System
Instruments with Serial Prefix 2520A and higher have System
METRIC thread.
When ordering Option 907, 908, or 909 for instruments with serial number prefix 2407A (English
thread), use the HP part number in parenthesis.
Option
standard instrument, order
Option
enable mounting
a standard instrument, order HP part number 5061-9674 (5061-0074) which has standard 4.45 cm (1.75
in.) hole spacing.
Option
and rack-flange kit packaged together. The combination is made up of unique parts which include both
functions.
4.45 cm (1.75 in.) hole spacing and is a standard flange.
907
(Front-Handle Kit). Ease of handling is increased with front-panel handles.
HP
part number 5061-9688 (5061-0088).
908
(Rack-Flange Kit). All necessary hardware and
of
the Microwave Converter in a rack with 482 mm (standard 19 in.) spacing.
909
(Rack-Flange and Front-Handle Combination Kit). This kit
To
retrofit a standard instrument, order HP part number
11
cabinet parts and hardware that are English thread.
I1
cabinet parts and hardware that are
To retrofit a
installation instructions are included to
To
retrofit
is
not simply a front-handle kit
SO6
1-9675
(SO6
1-0075) which has
Microwave Converter Model 11793A
Option 907
Front Handle Kit
Figure
Option 908 Option 909
Rack Flange
2.
Rack
Kit
Mounting
Rack Flange and Front
Handle Combination
Options
Kit
Accessories Supplied
The accessories supplied with the Microwave Converter are shown in Figure 1.
The line power cable may be supplied in several plug configurations, depending on the destination of
a.
the original shipment. Refer to the Paragraph 12
b.
Fuses with a 0.7SA rating for both
The control cable
C.
(
HP
part number 8 120- 18 38) is a 30 cm
11
"Power Cables"
5
and 230 Vac (HP part number 21 10-0063) are supplied.
in this manual.
(1
2 in.) flexible cable with male BNC 50
ohm connectors on each end. It connects to the frequency offset mode output of the measuring
instrument.
d.
The
LO
cable (HP part number 11793-60009) is a 36 cm (14.5 in.) flexible cable with
LO
female end connectors. The
of
connects to tlie output
the
cable includes a 3.5 mm male to Type-N male adapter. The cable
LO
source. Options
001,
01
1, and 021 delete the adapter.
3.5
mm
e.
The
IF
cable (HP part number 11793-60006)
ohm end connectors. The cable connects to the
4
is
a 25 cm (10 in.) flexible cable with Type-N male
RF
input of the measuring instrument.
50
Model
7.
11793A
Recommended
Test
Equipment
Microwave Converter
Table 4 lists the test equipment recommended to check, adjust, and troubleshoot the Microwave
Converter. The Minimum Specifications column describes the essential requirements for each piece of test
equipment. If substitute equipment is used, it must meet or exceed the minimum specifications.
Table
4.
Recommended Test Equipment
Instrument Type
Measuring Instrument
Sensor Module
Microwave LO Source
Microwave Signal
Source
I
[
Instrument Type
Multimeter DC Volts Range: 1OOV
RF Test Equipment
Contains specific circuitry to control the HP 11793A.
Must have a frequency range of 26.5 GHz and be compatible
with the measuring instrument.
See
LO
Amplitude Range in Table 1,
that the required output power depends on the
option in the HP
Frequency Range: 2 to 26.5GHz
Output Level:
11
-1
To Troubleshoot the Microwave Converter
I
DC Volts Accuracy: 2%
AC Volts Range: lOOV
AC Volts Accuracy: 10% at 50 Hz
Troubleshooting of the microwave components of the Microwave Converter requires
measurements to 26.5GHz of gain or insertion
frequency. Instruments which are required to perform these tasks include: signal generators and sweepers, network analyzers, spectrum analyzers, and power meters with accompanying couplers, pads, line stretchers, etc. Select the appropriate equipment and
use standard test procedures to make these measurements.
Minimum Specification Suggested Model
HP 8901 B or HP 8902A'
HP 11792A'
HP 86738"
HP 86738
793A.
to +1 dBm
LO
Requirements. Note
LO amplifier
Minimum Specification
loss,
SWR,
power, conversion
loss,
I
I
and
8.
INSTALLATION
9.
Initial
Inspect the shipping container for damage. If the shipping container or cushioning material
the shipping materials should be kept until the contents
completeness and the instrument has been checked mechanically and electrically. If there
inspection
is
damaged,
of
the shipment have been checked for
is
mechanical
damage or if the instrument does not pass the performance tests, notify the nearest Hewlett -Packard
office. Keep the damaged shipping materials
(if
any) for inspection by the carrier and a Hewlett-Packard
representative.
5
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