| 品牌 | R/S | 型號 | CMD80 |
| 測量范圍 | CDMA US/PCS/TDMA | 電源電壓 | AC220（V） |
| 尺寸 | 500（mm） | 重量 | 20（kg） |
| 用途 | CDMA通訊產(chǎn)品性能試測 |
CMD80是種能夠?qū)DMA AMPS D-AMPS(TDMA)和TACS等各種類型移動站進行測量的測試儀器。在進行射頻參數(shù)測量時，它可仿真移動站的真實工作環(huán)境，如模擬為三模式/雙頻段基站與移動站建立通話并在DUT處于正常通話狀態(tài)下(非專門測試模式)時進行各項測量儀器可支持下列網(wǎng)絡和頻率波段:高測量速度以及遠程控制功能，(通過 IEC/IEEE總線)CMD80使得測試儀適于在生產(chǎn)測試中使用儀器的高測量更是用于移動站開發(fā)研制所必需的特性。
CMD80技術指標
Signalgenerator
Frequency range, US Cellular 869MHz to 894MHz
Powermeasurement(feference level range)
RF IN/OUT (fullscale) +41 dBm to -28 dBm
RF IN2 (fullscale) 0 dBm to -69 dBm
Dynamic range 50dB below reference level
Demodulator O-QPSK
Modulation measurements signal quality(p)
phase error
magnitudeerror
error vector amplitued
carrier feedthraough
I/Qimbalance
cqrrier frequency error
transmission error
DCvoltoge measuremints Range 0 V to ±30V
DCcurrent measurements Range 0 A to ±10A
SignallingDigital modes 1595,UB-IS95,J-STD008,T53
D-AMPS;optionCMD-B84
RF OUT2 +3 dBm to -112dBm
Modulation π/4DQPSK or unmodulated
Analyzer
Powermeasurement(referene level range)
RF IN/OUT(fullscale) +39dBm to -60 dBm
RF IN2(full scale) -2dBm to -100 dBm
Power ramp
Adjacent-channel power
Modulationmeasurements phase error
magnitudeerror
error vector amplitued
carrier feedthraough
I/Qimbalance
cqrrier frequency error
Bit error rate measurement
SignallingDigital modes IS 136,IS54
RF signal generator
Frequency range
AMPS 869MHz to 894MHz
N-AMPS 869 MHz to 894MHz
TACS 935 MHz to 960MHz
J-TACS 860MHz to 870MHz
E-TACS 917 MHz to 950MHz
N-TACS 843 MHz to 846MHz
863.5MHzto 867MHz
Output level
RF IN/OUT -20 dBm to -124 dBm
RFIN2 0 dBm to -105 dBm
FM modulation
RF analyzer
Frequencyrange
AMPS 824 MHz to 849 MHz
N-AMPS 824 MHz to 849 MHz
TACS 890MHz to 915 MHz
J-TACS 915 MHz to 925 MHz
E-TACS 872 MHz to 905 MHz
N-TACS 898 MHz to 901 MHz
918.5MHz to 922 MHz
Referenec level
RF IN/OUT 0 dBm to +41 dBm
RFIN2 0 dBm to -69 dBm
FM demodulation
Signaling analog signalling AMPS(IS95)
NAMPS,TACSMJ/E/N-TACS
Audiosource
Frequency 50 Hz to 4kHz(single tone)
Output voltage Range 0.1mVto 5V,rms
AF analyzer
Measurements frequency
AC voltage
THD
