Rohde and Schwarz CMD80 Specifications Sheet

Digital Radiocommunication Tester CMD80

Precise high-speed measurements on CDMA, TDMA and analog mobiles

For use in

• production

• quality assurance

• service

• development

CMD80 – the multitalent

Additional capability continues to be
added to the proven CMD80 plat­form. In addition to CDMA, AMPS
(N-AMPS) and TACS (J/N/E-TACS),
digital AMPS (IS-136) measurements
on mobile stations are now posible
with option B84. CMD80 is thus able
to support all multiple access methods
presently used in mobile communica­tions (FDMA, CDMA, TDMA) on a
single hardware platform.

CMD80 with option B84 provides
unsurpassed test coverage for the
IS-136 standard, offering many capa­bilities that are not available on some
dedicated IS-136 test sets. Among
these are half-rate channel support,
peak and statistical adjacent-channel
power measurements, carrier switch­ing time measurements, etc. This
broad IS-136 test coverage will

enhance the CMD80´s use in manu­facturing tests as well as in engineer­ing applications.

All standards at a glance

Frequency band Type designation Airlink standard

US Cellular (800 MHz) CMDA IS-95

TDMA IS-136
AMPS/N-AMPS TIA-553, IS-91

Japan Cellular CDMA T53, IS-95

N-TACS/J-TACS

China Cellular CDMA IS-95

E-TACS/TACS

US PCS (1900 MHz) CDMA J-STD008, UB-IS-95

TDMA IS-136
Korea PCS (1800 MHz) CDMA J-STD008, UB-IS-95
Korea2 PCS CDMA J-STD008, UB-IS-95

The family members at a glance

CMD80 – CMDA, IS-136, AMPS and more

• CDMA, digital AMPS, AMPS, TACS in one box

• High measurement accuracy and speed

• Remote control via IEEE488/IEC625 bus

• Autotest and remote control via RS232

• Suitable for production, development and service

CMD52 – the leading GSM900 production tester

• All signaling required for GSM900 testing

• Highest measurement accuracy and speed

• Remote control via IEEE488/IEC625 bus

• Autotest and remote control via RS232

• Go/nogo test as well as service mode for exact fault location

CMD55 – the multiband GSM production tester

• GSM900, GSM1800 and GSM1900

• Testing of handover from GSM900 and back

• Other features as CMD52

CMD60 – pure DECT dedication

• Compact, lightweight and extremely fast

• Suitable for service, production and development

• Remote control via IEEE488/IEC625 bus + RS232

• Automated regression and stress testing of DUT

• Automatic go/nogo testing of fixed and portable part

CMD65 – the most versatile production tester

• GSM plus DECT in a single box

• Features equal the combination of CMD55 and
CMD60 in almost all respects

Manual operation philosophy

Research and development engineers

have found the CMD‘s large clear LC
display and user interface with logi­cally structured menus unsurpassed
when measuring RF parameters. This
is true both in the manual test mode
and in the flexible module test with
system-specific signal generator and
burst analyzer. During call setup the
network and system-specific signaling
parameters allow the R&D engineers
to control the influence of signaling
parameters on the mobile´s behavior
in the network.

quality assurancedevelopment

User-definable autotest

The user-friendly display and opera­tion of the CMD is a main requirement
when testing manually, but for auto­mated testing the engineer wants a
quick and easy way to a ready-made
autotest. The CMD family of testers
offers different ways of creating such
autotests and test scripts, depending
on the CMD model and the test
requirements.

• Voice loopback and compre­hensive testing of mobiles

• Powerful signaling capabilities

• Short measurement time
ensuring high throughput

• High measurement accuracy

• Simple interactive operation

• No specialized network
knowledge required

• Service mode for exact fault
location

• Autotest – complete mobile
testing at a keystroke

• Very fast remote control
operation

• Compact and lightweight

• Excellent price/performance
ratio

In addition to mobile radio net­works based on AMPS (Advanced
Mobile Phone System) and CDMA
(Code Division Multiple Access)
standards, more and more net­works with underlying TDMA (Time
Division Multiple Access) method
are gaining importance.

The demand is mostly for dual-mode
mobile phones with CDMA/AMPS
(IS-95 standard) or D-AMPS/AMPS
(IS-136 standard) functionality – fre­quently also for dual-band mobile
phones in the 800 MHz (US Cellu­lar) and 1900 MHz (US PCS) fre­quency bands. This fact inevitably
leads to the need for a mobile radio
tester that covers all three standards
in both frequency bands.

Many wireless manufacturers are
migrating toward "universal" pro­duction and test lines for mobile
phones, with an eye toward
reducing capital, maintenance,
and personnel costs. Until now,
these economies have been
diluted by the cost of equipping
test lines with dedicated test sets
for every wireless standard.

With the addition of the new
option B84, the CMD80
addresses IS-136, CDMA, AMPS,
N-AMPS, TACS, E-TACS, J-TACS,
and N-TACS test needs. Wireless
manufacturers now have an effec­tive way to implement cost-effi­cient universal manufacturing
lines for wireless phones.

... meeting the challenges
of modern communications

2 Digital Radiocommunication Tester CMD80

Digital Radiocommunication Tester CMD80

2

production service

Fast IEEE bus

In a production line there are two main
factors that contribute to high through­put and product quality: IEEE-bus
speed and measurement repeatability.
The high speed is obtained by parallel
measurements and the possibility of
issuing multiple commands in a single
IEEE string. With combined measure­ments and measurements like RF peak
power which takes only milliseconds,
time-consuming power level adjust­ments where multiple measurements
are required are completed in sec-

onds. The high level of measurement
repeatability offered ensures the high­est possible quality of the end product
leaving the factory.

Covering any need for test modes

Service and repair of digital mobiles
and cordless phones call for a variety
of tests, ranging from simple voice
loopback test to complete factory-like
production tests. The CMD range of
products offers cost-effective solutions
for manual testing, stand-alone
autotest, as well as remote RS232
operation solutions covering any test-

ing need. Every CMD comes with the
same large display and user interface
for manual testing of phones and/or
modules and RS232 interface for
remote operation.

Base-station survey measurements

These are often done on real base sta­tions or by using analog signal gener­ators with power amplifiers. The CMD
is able to simulate any CDMA, IS-136,
AMPS and TACS base station. This
feature enables close-to-life conditions
without having to use a real BTS.

Digital Radiocommunication Tester CMD80 3

Digital Radiocommunication Tester CMD80 3

(1)
The HOME menu allows simple selection of mobile
radio standard (CDMA, TDMA, analog) and frequency
band (Cellular, PCS).

(2)
The test menus are divided into two sections; mobile­specific measurement results are displayed on the left,
the main settings of the BS signal on the right.

(3)
In the HANDOFFS/TRANSITIONS menu different kinds
of handoffs between the mobile radio standards can be
performed. After the handoff the user can choose
between standard tests and voice loopback test.

(4)
In the IS-136 mode the CMD can send a user-defined
short message (SMS) to the mobile.

1

2

3

4

Measurement technology

Measurements are based on ultramod­ern digital signal processing. The
results are thus available within the
shortest possible time, which means
an enormous benefit in speed-dictated
mass production. DSP technology has
two important benefits: measurement
functions can be enhanced by soft­ware upgrades and new measurement
techniques can be added solely by
software modifications.

The individual measurements for the
various standards are derived directly
from the relevant specifications and
are preconfigured. Measurements can
thus be performed without in-depth
knowledge of the relevant network.

Basically, CMD80 provides two differ­ent measurement modes for each net­work. Measurements can be per­formed either as a module test (ie with­out call setup to the DUT) or as a man­ual test with full signaling. In the latter
case a call setup for performing the
measurement can be made both from
the base station (which is simulated by
the CMD80) and from the mobile. In
this mode it is also possible to set up a
call with voice loopback. The audio
data picked up by the microphone of

the mobile phone are buffered in the
CMD80 and reflected to the mobile
under test after a delay of about two
seconds. In this way speech quality of
the DUT can be verified.

In the signaling mode, implicit hand­offs can be made within the same
standard (ie a D-AMPS handoff to

another digital traffic channel – a new
channel number – or changeover to
another timeslot at the same TDMA fre­quency) as well as handoffs to other
standards, if defined. This is an impor­tant criterion for testing multimode/
multiband mobile phones. The mea­surements themselves are adapted to
the relevant transmission standard.

4 Digital Radiocommunication Tester CMD80

(1)
After registration of the mobile station in the MANUAL
TEST mode, the quality of the mobile under test can
immediately be examined. In-depth measurements are
available in submenus at the push of a button.

1

(2)
The open-loop time response test provides a graph of
the mobile station output power as a function of time
when the mobile station is commanded via open-loop
power control to change its output power.

(3)
The gated output of the RF carrier can be displayed in
several formats, ie FULL DISPLAY, RISING EDGE or
FALLING EDGE.

(4)
In the RECEIVER QUALITY menu the tester performs the
receiver quality test and displays the frame error rate
over the interval of the most recent number of frames.

2

3

4

CDMA

Code Division Multiple Access (CDMA)
is a new concept in wireless communi­cations. It has gained widespread inter­national acceptance by cellular radio
system operators as a method that will
increase both their system capacity and
their service quality.

In addition to transmitter and receiver
tests, power control tests play an
important role for CDMA. This is more
true since power control mechanisms
have a decisive influence on the net­work capacity.

The main CDMA tests include:

• Power control measurements

– Open-loop time response
– Gated output power
– Minimum output
– Maximum output

• Receiver quality measurements

– Frame error rate (FER) measure-

ments

– Additionally with AWGN gen-

erator (option B81) to simulate
noise that is caused by other
CDMA calls at the same fre­quency

• Transmitter quality measurements

– Carrier feedthrough and I/Q

imbalance

– Carrier frequency error and

transmit time error

– Waveform quality (ρ factor)
– Phase error
– Magnitude error
– Error vector magnitude

Digital Radiocommunication Tester CMD80 5

(1)
The adjacent channel power measurement allows the
user to measure the adjacent, first, and second alter­nate channel power and display the results in a fre­quency domain view.

1

(2)
The phase error measurement allows the user to mea­sure the difference in phase between the measured sig­nal from the mobile station transmitter and an ideal sig­nal waveform.

(3)
The time alignment measurement displays the timing
alignment (in symbols) between the user-specified delay
and the actual measured delay of the burst signal from
the mobile station transmitter.

(4)
The mobile assisted handoff (MAHO) report displays
the results of the mobile station measurement report,
showing the current base station channel in use, its RSSI
(received signal strength indication), and the BER range
(bit error information estimated by the mobile station).

2

3

4

TDMA

D-AMPS (Digital Advanced Mobile
Phone Service) is a digital version of

AMPS, the original analog standard
for cellular phone service in the United
States. Both D-AMPS and AMPS are
now used in many countries. D-AMPS
adds Time Division Multiple Access
(TDMA) to AMPS to get three users for
each AMPS channel, tripling the
number of calls that can be handled
on a channel. D-AMPS is known as
IS-136 from the Electronics Industries
Assocation/Telecommunication Indus­tries Assocation (EIA/TIA).

As with CDMA, the various measure­ments for IS-136 are subdivided into
groups. The main IS-136 tests include:

• Transmitter measurements

– Adjacent channel power (due to

modulation/due to switching),

six adjacent/alternate channels
– Power versus time measurement
– Origin offset (carrier crosstalk)
– I/Q imbalance (measure of uneven

gain in the I/Q path of the transmit-

ter modulator)
– Frequency error
– Amplitude droop (level difference

between the start and end of a

TDMA burst)
– Phase error
– Magnitude error (amplitude error)
– Error vector magnitude (magni-

tude of the vectorial error function

versus time)

• Receiver measurements

– Bit error rate measurement

• Time alignment (in manual test

only)

• SMS transfer from base to mobile

station (in manual test only)

• Simulation of mobile assisted
handoff (MAHO) – in manual test
only

Analog

AMPS (Advanced Mobile Phone
Service), N-AMPS

is a standard system for analog signal
cellular telephone service in the United
States and is also used in other coun­tries. It is based on the initial fre­quency spectrum allocation for cellular
service by the Federal Communica-

6 Digital Radiocommunication Tester CMD80

(1)
Within the MODULATION LIMITING menu CMD80
measures the maximum frequency deviation which the
mobile transmitter allows.

(2)
When the tester measures the audio frequency
response in normal mode, a de-emphasis filter is active
and the configuration menu can be used to set limit lines
for the measurement.

(3)
The modulation noise and distortion result is highlighted
if the percentage of modulation noise and distortion
exceeds the limit specified in the configuration menu.

1

2

3

tions Commission (FCC) in 1970.
Introduced by AT&T in 1983, AMPS
became the most widely deployed cel­lular system in the United States.

TACS (Total Access Communications
System), J/N/E-TACS

Signaling and measurements for the
TACS implementations are very similar
to those for the AMPS standard, with
only a few minor changes. The chan­nel ranges and their associated fre-

quency assignments are different from
the AMPS standard, and the default
values for many parameters are
adjusted to appropriate values for the
TACS standards.

Within the various AMPS/TACS mea­surements both the RF parameters and
the audio signal of the mobile phone
are investigated.

The main AMPS/TACS tests include:

• Carrier power

• Carrier frequency error

• SAT frequency error/peak
deviation

• ST frequency error/peak deviation

• Carrier power measurement

• Receiver measurements

– Sensitivity
– Hum/noise
– Harmonic distortion
– Audio frequency response

• Transmitter measurements

– Hum/noise
– Modulation noise/distortion
– Audio frequency response
– Modulation limiting

Digital Radiocommunication Tester CMD80 7

Applications

Above: The CMD80go measurement report provides a clear overview of
results and mobile-specific information

Right: The CMD80go software runs on all commercial PC platforms.
Remote control is effected via a simple serial connection

Autorun

The various autorun applications
allow the full testing of mobile phones
without need for an additional process
controller and without specialized
knowledge of the different networks.
Such applications are ideal for final
testing in production and in the
service. The measurement applica­tions are based on the specifications
of the various standards and can be
configured via a functional user inter­face. Upon completion of the test
sequence the results are clearly dis­played in a test report.

CMD80go

The CMD80go program offers com­prehensive remote control capabilities
for the Digital Radiocommunication
Tester via a convenient Windows soft­ware package (versions are available
for Windows 95 and Windows NT).
This application software features an
autotest that can be configured
according to the different standards
for testing mobile phones. The results
are summarized in a comprehensive
test report which can be printed or
stored for further processing with other
programs (eg Microsoft Excel).

8 Digital Radiocommunication Tester CMD80

AWGN generator

Fading application

The receiver quality of a CDMA
mobile phone in line with the IS-95
standard is determined by measuring
the frame error rate in the presence of
an AWGN noise signal.

The combination of Vector Signal Gen­erator SMIQ with the options

• Noise Generator and Distortion
Simulator (SMIQB17 )

• Fading Simulator (SMIQB14 )

Channel simulator

Tx

Above: Schematic representation of fading measurement
Left: The test setup for fading measurements is very simple and merely requires CMD80

and SMIQ to be interconnected

and Digital Radiocommunication
Tester CMD80 with the optional I/Q
Modulator Outputs (B17) allows sim­ple performance of the receiver qual­ity tests.

In this application, CMD80 assumes
the function of the base station. SMIQ
then generates both the required multi­path signal and the AWGN signal
and combines these two signals at its
output. The fading profiles specified
by the IS-98 standard can be called on
SMIQ from a list of preprogrammed
standards at a keystroke. Moreover,
the user can edit further multipath pro­files.

Mobile station

Σ

Base station

Rx

Rx

under test

Tx

For these tests the mobile phone is set
to the loopback mode. At the same
time, the base station is measuring the
frame error rate. Measurements are
carried out at different bit rates.

There is a similar application for test­ing D-AMPS mobile phones.

Digital Radiocommunication Tester CMD80 9

Options in detail

Memory Card Interface*)

The memory card option makes soft­ware updates extremely easy. Simply
plug in the card with the new firmware

release, switch on and that’s all. There
is just no easier way. Moreover, instru­ment settings can be stored on a mem­ory card and transported to another
instrument. Screenshots can also be
stored on the memory card in the form
of PCX files.

*) R&S option B62, fitted as standard in basic
model for North America

Message Monitor *)

The Message Monitor allows to dis­play and record the communication
between the base station (CMD80)
and the CDMA mobile station. The
messages from the forward and
reverse link thus become transparent
and visible.

The option uses the service port of
CMD80 to display the data on an
external PC via a special cable. The
program runs on all PC-compatible
computers under Windows 95 or Win­dows NT.

*) Option B83 for R&S, MM18 for Tektronix

Access Channel Registration Message

10 Digital Radiocommunication Tester CMD80

Name Description Notes

K1

IS-95 CDMA 800 MHz
Test Capabilities

K2

PCS1900/1700 MHz
Test Capabilities

B1

OCXO Reference Oscilla­tor

CDMA cellular extension. Allows measurements on CDMA
mobile phones which are operating in cellular band (800 MHz)

CDMA PCS extension. Allows measurements on CDMA mobile
phones which are operating in PCS band (1900/1700 MHz)

OCXO reference oscillator, aging ±1x10-7. Ensures high abso­lute accuracy, minimum temperature-dependent drift and espe­cially high long-term stability. Used for measurements with

Option is also required for AMPS (B82)
and D-AMPS (B84) measurements in the
cellular band (standard for US market)

Option is also required for D-AMPS
(option B84) measurements in the PCS
band

exacting requirements on frequency stability

B3

Reference Frequency
Inputs/Outputs

Multifrequency reference input/output. For synchronizing DUT
and measuring instruments with internal or external frequencies.
Allows synchronization of CMD to an internal or external fre­quency of 2.048, 10, 13, 26, 39, 52 MHz

B14

Rate Set 2 (13k vocoder

Rate set 2 extension for CDMA mobile phones. Allows testing of
CDMA mobiles which support 13 kbit/s data rate

support)

B17/B17IQ

I/Q Modulator Outputs

I/Q signals from the CMD modulator and burst trigger signals
are provided for Rohde & Schwarz Signal Generator SMIQ for
conformity tests under fading conditions

B60

Carrier Board for

Adapters for B6x options Option is required for options B61/62

(standard for US market)

B61/B62

B61

IEEE/IEC-Bus Interface

IEC625/IEEE488-bus interface. Remote control alternative to the
RS232C interface fitted as standard. Used for fast remote control

Requires option B60

of CMD

B62

Memory Card Interface

Memory card interface. Allows storage of instrument setups as
well as fast and easy upgrades to new software features. Highly

Requires option B60
(standard for US market)

recommended

B81

AWGN Generator

The AWGN extension allows to add additional white Gaussian
noise to the base station signal. This option is used to simulate
the noise floor of additional CDMA traffic channels.

B82

Analog Option

B83, MM18

Message Monitor

Analog extension. Allows measurements on AMPS, N-AMPS,
J/N/E-TACS mobile stations

The message monitor operates with the CMD80 to interpret and
display CDMA forward/reverse link messages on an IBM

Requires option K1 and B60

PC-compatible computer running Windows 95/NT

B84

IS-136 (D-AMPS) Test
Capabilities

U22

Controller Board Upgrade

IS-136 extension. Allows testing of D-AMPS (IS-136) mobile
phones

The controller board upgrade option is equipped with current
CPU and RAM.

Requires option B82
For cellular band, option K1 is required
For PCS band, option K2 is required

Required for option B84
(not available for US market) *)

U82

Analog Board Upgrade

U84

Link Handler Upgrade

CTS-Z10

Mobile Coupling Device

CTS-Z12

Shielding Box

ZZA-94/1R

The analog board upgrade is part of option B82 (mod.12/14). It
replaces the old analog board of option B82 (mod. 02/04)

Link handler upgrade replaces link handler of CMD80 (mod.
80/81)

The mobile coupling device is suitable for development and
service purposes

The shielding box together with the coupling device (CTS-Z10)
protects the mobile from external electromagnetic influence

Adapter for mounting the CMD into a 19’’ rack

Required for option B84
(not available for US market) *)

Required for option B84
(not available for US market) *)

CTS-Z10 is highly recommended

Rackmount Adapter

ZZK-943

CMD Transportation Box

*) The upgrade options U22/U82/U84 are necessary only if a CMD80, model 80/81, has to be upgraded to IS-136 test capabilities.

The transportation box protects the CMD against mechanical
shock

(not available for US market)

Digital Radiocommunication Tester CMD80 11

Specifications

CDMA

Signal generator

Frequency

Range US Cellular 869 MHz to 894 MHz

Japan Cellular 832 MHz to 870 MHz
China Cellular 934 MHz to 969 MHz
PCS (US) 1930 MHz to 1990 MHz

PCS (Korea) 1805 MHz to 1870 MHz
Resolution 1 Hz
Error same as timebase

Output level

RF IN/OUT −124 dBm to −20 dBm
RF OUT 2 −105 dBm to 0 dBm
Resolution 0.1 dB
Error (RF IN/OUT) <1.5 dB

Modulation QPSK
Carrier suppression 30 dB

Analyzer

Frequency

Range US Cellular 824 MHz to 849 MHz

Japan Cellular 887 MHz to 925 MHz

China Cellular 889 MHz to 924 MHz

PCS (US) 1850 MHz to 1910 MHz

PCS (Korea) 1715 MHz to 1780 MHz
Resolution 1 Hz
Error same as timebase

Power measurement

Reference level range

RF IN/OUT (full scale) −28 dBm to +41 dBm
RF IN 2 (full scale) −69 dBm to 0 dBm

Measurement error, absolute <1.5 dB
Measurement error, relative <0.3 dB (reference level −30 dB)
Dynamic range 50 dB below reference level
within the following range

RF IN/OUT (full scale) −65 dBm to +41 dBm
RF IN 2 (full scale) −75 dBm to 0 dBm

Demodulation O-QPSK
Modulation analyzer
error of ρ factor (25 ±10) °C <0.003 (for ρ: 0.9 to 1)

Frequency measurement range −3 kHz to +3 kHz
Frequency measurement error <reference ±30 Hz
Timing measurement error <60 ns

Rate set support

Rate set 1 (8 k) standard
Rate set 2 (13 k) option B14

AWGN generator option B81

Equivalent noise bandwidth 1.8 MHz typ.
Gain adjustment range −20 dB to +6 dB of forward channel

Signaling

Digital modes IS-95, UB-IS-95, J-STD008, T53

TDMA – option B84

Signal generator

Frequency

Range US Cellular 869 MHz to 894 MHz

PCS (US) 1930 MHz to 1990 MHz
Resolution 1 Hz
Error same as timebase

Output level

RF IN/OUT −120 dBm to −20 dBm
RF OUT 2 −100 dBm to 0 dBm
Resolution 0.1 dB
Error (RF IN/OUT) <1.5 dB

Modulation π/4 DQPSK or unmodulated
Error <4 % (EVM rms)
Mod. distortion 3rd order <−45 dBc
Carrier feedthrough <−25 dB

Spectral purity

SSB phase noise −94 dBc (1 Hz at 50 kHz offset)

power

−106 dBc (1 Hz at 100 kHz offset)

Analyzer

Frequency

Range US Cellular 824 MHz to 849 MHz

Resolution 1 Hz
Error same as timebase

Power measurement

Reference level range

Residual level <−65 dBm (RF IN/OUT)

Spectral purity

Phase noise −94 dBc at 50 kHz offset

Modulation analyzer

CR band: 824 MHz to 849 MHz
EVM RMS (residual) 1%
EVM Pk (residual) 3%

CR band: 1850 MHz to 1950 MHz
EVM RMS (residual) 1.5%
EVM Pk (residual) 5%

I/Q offset (residual) 50 dB (0.3%)
I/Q imbalance (residual) 50 dB (0.3 %)
Frequency measurement range −1 kHz to +1 kHz
Frequency measurement error <5 Hz + reference

Power versus time

Level error <1.5 dB down to 20 dB below refer-

Leakage power −65 dBm

Adjacent channel power

Dynamic range

Signaling

Digital modes IS-136A

PCS (US) 1850 MHz to 1910 MHz

RF IN/OUT (full scale) 0 dBm to 39 dBm
RF IN 2 (full scale) −40 dBm to 0 dBm

−106 dBc at 100 kHz offset

ence level, 3 dB else,
dynamic limit 66 dB (IS-136 BW)

1st adjacent channel 36 dB
2nd and 3rd adjacent channel 55 dB

Analog – option B82

RF signal generator

Frequency

Range AMPS 869 MHz to 894 MHz

Resolution 1 Hz
Error same as timebase + resolution

Output level

RF IN/OUT −124 dBm to -20 dBm
RF OUT 2 −105 dBm to 0 dBm
Resolution 0.1 dB
Error (RF IN/OUT) <1.5 dB

Modulation

FM deviation 0 Hz to 12 kHz
FM resolution 1 Hz
FM rate 50 Hz to 15 kHz
FM distortion (THD + noise) ≤0.5% (dev. 8 kHz, rate 1 kHz,

Residual FM <10 Hz (rms, CCITT)
Deviation error ≤2 % of setting + residual FM + FM

N-AMPS 869 MHz to 894 MHz
TACS 935 MHz to 960 MHz
J-TACS 860 MHz to 870 MHz
E-TACS 917 MHz to 950 MHz
N-TACS 843 MHz to 846 MHz

863.5 MHz to 867 MHz

BW 0.3 Hz to 3 kHz, (25 ±5) °C)

resolution + timebase error
(0.3 kHz ≤FM rate ≤3 kHz, measure­ment bandwidth 30 Hz to 20 kHz)

RF analyzer

Frequency

Range AMPS 824 MHz to 849 MHz

Resolution 1 Hz

N-AMPS 824 MHz to 849 MHz
TACS 890 MHz to 915 MHz
J-TACS 915 MHz to 925 MHz
E-TACS 872 MHz to 905 MHz
N-TACS 898 MHz to 901 MHz

918.5 MHz to 922 MHz

12 Digital Radiocommunication Tester CMD80

Reference level range

RF IN/OUT (full scale) −28 dBm to +41 dBm
RF IN 2 (full scale) −69 dBm to 0 dBm

RF frequency measurement

Dynamic range (from ref. level) >40 dB
Resolution 1 Hz
Error <resolution + timebase error

RF power measurement
Narrowband (RF IN/OUT, DSP):
Reference level range 0 dBm to +41 dBm
Range 0 dB to 50 dB below reference level
Error <1.5 dB
Wideband:
Range

RF IN/OUT 0 dBm to +41 dBm
RF IN 2 −16 dBm to 0 dBm

Error <1.5 dB

FM measurement

RF bandwidth
(( 2 x deviation) + (4 x rate)) ≤60 kHz
Deviation range 0 kHz to 30 kHz
Resolution 1 Hz
FM rate range 0 kHz to 12 kHz
Sensitivity (BW 0.3 to 3 kHz, SINAD
12 dB, dev. 2.9 kHz, FM rate 1 kHz)

RF IN/OUT connector
(ref. level = −28 dBm) typ. 13 µV (−85 dBm)
RF IN 2 connector
(ref. level = −69 dBm) typ. 1.3 µV (−105 dBm)

Residual FM

RF IN/OUT typ. ≤7 Hz (BW 0.3 to 3 kHz, rms)
RF IN 2 typ. ≤9 Hz (BW 0.3 to 3 kHz, rms)

Error

Signaling

Analog mode AMPS, N-AMPS

<4% of reading + 30 Hz + residual FM
(FM rate ≤12 kHz, deviation ≤30 kHz)

TACS, J/E/N-TACS

Audio source

Frequency

Range 50 Hz to 4 kHz (single tone)
Resolution 1 Hz
Error half resolution

Output voltage

Range 0.1 mV to 5 V, rms
Resolution 0.1 mV
Maximum output current 20 mA peak
Output impedance <5 Ω
Level error <5% (output voltage >1 mV)
Distortion (THD + noise) ≤0.1% (BW 100 kHz,

output voltage ≥200 mV)

AF analyzer

Frequency measurement

Range 50 Hz to 15 kHz
Resolution 1 Hz
Error <1 Hz + timebase
Input voltage range 10 mV to 30 V

AC voltage measurement

Input range 0.1 mV to 30 V, rms
Error < 5% + resolution
Nominal input impedance 1 MΩ ll 100 pF

Distortion measurement

Bandwidth limited by C-message filter
Frequency 1004 Hz
Input voltage range 100 mV to 30 V, rms
Inherent distortion <0.2 %
Resolution 0.1% distortion
Error <5% + inherent distortion

SINAD measurement

Bandwidth limited by C-message filter
Frequency 1004 Hz
Input voltage range 100 mV to 30 V, rms
Inherent distortion <0.2%
Resolution 0.1 dB
Error <5% + inherent distortion

Audio filters, notch filters automatically selected based on the

specific measurement configuration

Timebase

Standard timebase

Nominal frequency 10 MHz
Frequency drift in temperature

range 5 °C to 35 °C ≤1.5 x 10
Frequency aging ≤0.5 x 10−6 / year (at 35 °C)

OCXO reference oscillator option B1

Nominal frequency 10 MHz
Frequency drift in temperature
range 5 °C to 45 °C ≤1 x 10
Frequency aging ≤2 x 10−7 / year, ≤0.5 x 10

Warmup time (at 25 °C) approx. 5 min

Reference frequency
inputs/outputs option B3

Synchronization input 1, 2, 5 or 10 MHz, selectable
Impedance approx. 100 Ω
Input voltage range 632 mV (pp) to 5 V (pp)
Synchronization output

Frequency 10 MHz or frequency at sync input
Voltage 5 V (pp), R

Additional synchronization signals see Carrier Board option B60

Carrier board option B60

Synchronization output selectable between:

Option B60 is required for options B61, B62 and B82

VSWR

RF IN/OUT (N connector) typ. 1.3
RF IN 2 (BNC connector) typ. 1.8
RF OUT 2 (N connector) typ. 1.8

after 30 days of operation

2 s (even second pulse)
80 ms super frame
20 ms paging frame

26.67 ms sync frame

1.25 ms power control frame

19.6608 MHz system clock
for D-AMPS: 80 ms super frame

−7

−6

out

= 50 Ω

−9

/day

DC measurements

DC voltage measurement

Range ± (0 to 30) V
Resolution 10 mV
Error <2% + resolution

DC current measurement

Mode averaging, +peak, −peak
Range ±(0 to 10) A
Common-mode rejection ± 30 V
Shunt resistance 50 mΩ
Resolution for averaging 1 mA / 10 mA
Resolution for peak 10 mA
Residual indication <10 mA at 25°C and common mode

Error <2% + resolution + residual indication

rejection ± voltage 10 V

Interfaces

IEEE/IEC-bus interface option B61

Other interfaces RS232C (9-contact)

interface to IEC625-1

Centronics (25-contact)

Special calibration (Modcal)

Service option Z8, special calibration for TX path
valid for CDMA output signals (all values at room temperature (25 ± 5) °C)

Absolute level error

RF IN/OUT (−108 to −20 dBm)

RF OUT 2 (−103.5 to 0 dBm) typ. <1 dB

Relative level error
(linearity at one frequency)

RF IN/OUT (−108 to −38 dBm)

RF OUT 2 (−103.5 to −18 dBm) all values are in a range of ±0.5 dB

Important note:
The range of 1 dB has to be determined over all measured values inclusive

(it is not determined ±0.5 dB with respect to any one particular value).

typ. <1 dB

all values are in a range of ±0.5 dB

Digital Radiocommunication Tester CMD80 13

Valid network handoffs

Network Handoff from standard Valid handoff to standards

US Cellular

CDMA (IS-95) AMPS or N-AMPS
AMPS N-AMPS
N-AMPS AMPS
AMPS TDMA (IS-136A)
TDMA (IS-136A) AMPS
TDMA (IS-136A) US PCS TDMA (IS-136A)

Japanese Cellular

CDMA (IS-95) J-TACS or N-TACS
J-CDMA (T53) J-TACS or N-TACS
J-TACS N-TACS
N-TACS J-TACS

Chinese Cellular

CDMA (IS-95) E-TACS or TACS

US PCS

CDMA (J-STD008) AMPS or N-AMPS
TDMA (IS-136A) AMPS
TDMA (IS-136A) US Cellular TDMA (IS-136A)

General data

Rated temperature range 5 °C to 45 °C to DIN IEC 68-2-1 /2
Storage temperature range −40 °C to +60 °C
Electromagnetic compatibility complies with requirements of

Mechanical resistance

Vibration, sinusoidal meets IEC68-2-6, IEC1010-1,

Vibration, random meets DIN IEC 68-2-36, DIN 40046 T24,

Shock meets

Power supply 90 V to 265 V, 45 Hz to 440 Hz

Power consumption (without options)

Electrical safety meets EN61010-1, EN60950,

Dimensions (W x H x D) 435 mm x 192 mm x 363 mm
Weight (without options) approx. 15 kg

EMC directive 89/336/EEC
(EN50081-1 and EN50082-2)

EN61010-1, MIL-T-28800 D class 5,
5 Hz to 55 Hz, max. 2 g,
55 Hz to 150 Hz, 0.5 g const.

10 Hz to 300 Hz, 1.2 g rms

DIN IEC 68-2-27, 40 g shock spectrum

approx. 80 W

IEC 1010-1, VDE 0411, class1

14 Digital Radiocommunication Tester CMD80

Ordering information

Designation Typ e Order No.

Digital Radiocommunication Tester

(basic unit, CMD-K1 and/or CMD–K2 required)

Options

IS-95 CDMA 800 MHz Test Capabilities CMD-K1 1082.2550.02
PCS1900/1700 MHz Test Capabilities CMD-K2 1082.2650.02
OCXO Reference Oscillator CMD-B1 1051.6002.04
Reference Frequency Inputs/Outputs CMD-B3 1051.6202.02
Rate Set 2 (13k vocoder support) CMD-B14 1059.6101.02
I/Q Modulator Outputs CMD-B17 1099.3003.02
Carrier Board for -B61/B62 CMD-B60 1059.5405.02
IEEE/IEC-Bus Interface CMD-B61 *) 1051.7609.02
Memory Card Interface CMD-B62 *) 1051.8205.04
AWGN Generator CMD-B81 1059.7508.02
Analog Option (AMPS, TACS) CMD-B82 ***) 1059.4344.12
Message Monitor CMD-B83 1099.5706.02
IS-136 (D-AMPS) Test Capabilities CMD-B84 **) 1099.5806.02
Controller Board Upgrade CMD-U22 1099.5906.02
Analog Board Upgrade CMD-U82 1129.0506.02
Link Handler Upgrade CMD-U84 1129.0606.02
Mobile Coupling Device CTS-Z10 1079.1240.02
Universal RF Shielding Box CTS-Z12 1079.1470.02
Rackmount Adapter ZZA-94 0396.4905.00
CMD Transportation Box ZZK-943 1013.9350.00

CMD80 1050.9008.84

Ordering information

Designation Typ e

Digital Radiocommunication Tester
for 800 MHz (US Cellular) and 1900 MHz (PCS)

Options

IS-95 CDMA 800 MHz Test Capabilities Standard
PCS1900/1700 MHz Test Capabilities CMD80 K2
OCXO Reference Oscillator CMD80 B1
Reference Frequency Inputs/Outputs CMD80 B3
Rate Set 2 (13k vocoder support) CMD80 B14
I/Q Modulator Outputs CMD80 B17IQ
Carrier Board for -B61/B62 Standard
IEEE/IEC-Bus Interface CMD80 B61 *)
Memory Card Interface Standard
AWGN Generator CMD80 B81
Analog Option (AMPS, TACS) CMD80 B82
Message Monitor MM18
IS-136 (D-AMPS) Test Capabilities CMD80 B84 **)
Rackmount Adapter CMD80 1R

*) Option B60 required **) Option B82 required ***) Option K1 and B60 required

CMD80

Digital Radiocommunication Tester CMD80 15

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D-81671 München ⋅ P.O.B. 8014 69 ⋅ D-81614 München

Telephone [phone]

Internet: http://www.rsd.de ⋅ CustomerSupport:

Tel. [phone], Fax [phone],

E-mail: [e-mail]

Tektronix, Inc., Measurement Business Division

P.O.Box 500 ⋅ Beaverton, Oregon 97077-0001

Phone: [phone]

Internet: http://www.tek.com ⋅ CustomerSupport:

1-800-835-9433, Ext. 2400

E-mail: [e-mail]

PD 757.1825.24 ⋅ Digital Radiocommunication Tester CMD80 ⋅ Trade names are trademarks of the owners ⋅ Subject to change ⋅ Data without tolerances: typical values Printed in Germany 0699 (Bi we)