频率校正信道/频率校准信道
Frequency Correction Channel FCCH
石英晶体频率校准仪
quartz crystal calibration equipment
校准频率和时间讯号
standard frequency and time signal
自动频率校准
auto frequency calibration
频率域校准
frequency domain calibration
射频功率校准仪
RF Power Calibration Apparatus
放大倍率校准
calibrating magnification
辐射校准准置
radiometric calibration facility
漏率校准
calibration of leakage rate
Leakrate calibration
leakege rate calibration
leak rate calibration
频率校验信道
Frequency Correction Channel FCCH