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
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