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一、概述VX14B电平振荡器和VD18B选频电平表组成一套完整的传输测试仪,用于10KHz～18.6MHz频段内电平衰耗、增益的选频测量。是供多路载波通信设备进行测试的全晶体管化的信号源指示器,覆盖2700路以下的同轴电缆及微波中继多路电话系统所有传输频带。VX14B和VD18B具有VX14和VD18的全部优点,且有平衡和同轴二种测试功能,多种阻抗可供选择。与VS_1电平图示仪及扫频振荡器可并有组
I. Overview VX14B level oscillator and VD18B selection frequency meter form a complete transmission tester for the level of 10KHz ~ 18.6MHz band attenuation, gain frequency selection measurement. Is a fully-transistorized signal source indicator for multi-carrier communication equipment that covers all transmission bands for coaxial cable and microwave relay multi-way telephone systems below 2700 lines. The VX14B and VD18B offer all the benefits of the VX14 and VD18B with balanced and coaxial test capabilities and a wide range of impedances to choose from. And VS_1 level meter and swept oscillator can have a group