★宽频带范围:300KHz~2.25GHz
★可通过后面板扩展连接器MG0301C/ 0302A/ 0305A/ 0307A/ 0311A调制单元扩展
★与日本,北美和欧洲的通信系统测量信号相兼容
★高调制精度(矢量误差≤1.8%rms)
★输出调制信号与每个通信系统匹配
★带数据编辑及倒频功能的内部图象发生器
★输出IS-95通道多路传输信号
技术指标
uency Frequency range 300kHz to 2250 MHz(mg3670B/C),300kHz to 2750MHz(MG3671A/B and MG3672A)
Accuracy Dependson installed reference cscillator*^1
Intemalreference oscillator Frequency:10MHz
Start-up characteristics:≤1*10^-7/day(after 30 min.warm-up),≤5*10^-8/day(after60 min.warm-up)
Aging rate:≤2*10^-8/day(after 24 h warm-up)
Temperaturecharacteristics:Aging rate:≤±5*10^-8(0 °to 50℃)
Extemalreference input 10 MHz or 13MHz(±10ppm),,2to 5 Vp-p,BNC connector(rear panel)
Referenceoutput 10 MHz,2 to 5Vp-p,BNC connector(rearpanel)
Output Levelrange*^2 -143 to +13 dBm(resolution:0.1dB)
Frequency response ≤±dB(at0 dBm output)
Level accuracy*^2 Outputlevel/frequency ≤1000MHz >1000MHz
-33 to +13dBm ±1dB ±2dB
-123 to -33.1dBm ±1.5dB ±2dB
-136 to 123.4dBm ±3dB ±4dB
Impedance 50Ω,N-typeconnctor
Continuously varible level*^2 Continuouslyvariableoutput over 20dB rqnge(+8 to -12dB) in 0.1dB steps within upper and lowerlimlits of any output level
Level unit dBm,dBμ,μV,mV,V(dBμ,μV,mV,Vselected terminate/open voltagedisplay)
Interferenceraeiation ≤1μV*Measured 25 mm from cabinet(exceptrear pane)with two-turn 25 mm diameter loop antenna ,terminated with 50Ω load,≤+5dBmoutput ,CW
Signal purity Spurious
(at ≤+5 dBm output) ≤-65dBc(≥100kHz offset,≤±100MHz,≤-50dBc(≥100kHzoffset ,full band)
≤-40dBc (≥2.65 HGz,spurious at 5.4-Fout (carrier frequency)GHz],≤-30dBc (harmonics)
SSB phase noise ≤-120dBc /Hz(100 kHz,offset,CW)
Dingitalmodulation Intermal modulaton Dependson installed modulationunit(MG030C/0.02A/0.10A/0311A/0312A/0314A
External
modulation ForMG3670B/C,MG3671A/B
Any modulation using I/Q input signal
Input frequency:DCto 1.2 MHz*^3
Input leve