供应S331A S331A二手天馈线测试仪特点: ?准确的回程损耗/SWR测量 ?可精确的测试传输线和天线 ?免受现场RF干扰 ?距离错误窗口显示功能(S120A,S251A/B) ?损耗/收益存放(S114B,S332B) ?可选瓦特计 ?可选内置T型连接器(S251A/B) ?合成器精确到75ppm 技术指标 Model S331A Frequency range 25 to 3300MHz(S331A) 25 to 4000MHz(S400A) Freqeuncy accuracy(CW mode) 75ppm Frequency resolution 100kHz Immunity to interfering RF signals up to^*2 -15dBm Return loss SWR Resolution:0.1dB (S120A,S251A) S810A,S818A,S820A) Return loss:0 to 54dB