供应德国罗德&施瓦茨CMD65综合测试仪
品牌：R&S（罗德&施瓦茨）
型号：CMD65综合测试仪
CMD65可靠性测量速度和性价比是使
一种测试设备在市场上获得优势地位的关键性指标。
在DECT( 数字欧洲无绳电话) 无线通信网络中大量的无线电话和固定站，
CMD65必须分享十分有限的频率时间和空间资源。
因此只有制订严格的标准或规范才能保证网络正常有序的运转。
另一方面标准又要求DECT系统以及系统使用的话机应具有低廉的价格。
CMD65这一点导致设 备结构复杂性和精度受到限制。
技术指标
Time and frequency reference
TCXO standard
Nominal frequency 10MHz
Temperfure effect(0 to 35℃) <1.5*10^-6
Aging <0.5*10^-6/year
OCXO option CMD-B1
Nominal frequency 10MHz
Temperatureeffect(0to 50℃)
Aging 1*10^-7
<5*10^-9/day or <2*10^-7/year
DECT signal generator specificaitons validfor N connector
Frequency 10 DECt chanels 0 to 9
Additional DECT channels -3 to -1,10 to 12ａnd half channels
Level range -100 to -40dBm
Burst switch-off >30dB
Modulation GFSK(B*T=0.5)
DECT analyzer specifications valid for N connector
Frequency
Level(setting for external offenuation and expected powershall be matching same as signal generator
-10 to +30 to dBm) -65 to +30dBm(for level meter)
-30 to +30dBm(forbroadbａnd FM demodulator and signalling),values shifted by about -40dB for input2
FM demodulator for TX postprocessing and analog output
Range 0 to 450kHz deviation
Resolution 1kHz
Level meter(transientresponse) for TX posprocessing and analog output
Range -65to 30 to dBm
Dynamic 70dB
Analog DECT ADPCM interface
Output balanced
Range 1V,300Hz to 3kHz
S/N+THD 50dB of full-range level
Input balanced
Range 50mV,300Hzto 3kHz
S/N+THD 50dB at full-range level
DC measurements
DC voltmeter 0to ±30V
DC ammeter 0 to ±30A
AF meter
Frequency range 50Hzto 10kHz
Input voltage 0.1mV to 30V
Load impedance 1MΩ
AF distortion meter
Frequency range 300Hz to 3kHz
Input voltage 100mV to 30V
Loadimpedance 1MΩ
AF counter
Frequency range 20Hz to 10kHz
Input voltage 10mVto 30V
rESOLUTION 1Hz
Load impedance 1mΩ
60MHz counter
Frequency range 10Khz to 60MHz
Input signal min:100mV;max:TTL signal
Resolution 1Hz
Load impedance 1MΩ‖100pF
AFgenerator
Frequency range 50Hzto 10kHz
Resolution 0.1Hz
Accuracy 0.05Hz
Output voltage 10μV to5V
Max.current 20mA
Source impedance <5Ω
