TEGAM Inc. 8850-18 10 MHz to 18 GHz RF Attenuation Measurement System. Consists of: VM-7 Advanced 30 MHz RF Receiver, 8852 RF Frequency Converter 10 MHz to 18 GHz (includes 1583-3 GPIB/IEEE-488 Cable), 187-4001 Attenuation Measurement Kit, 1583-3 1 Meter GPIB/IEEE-488 Cabl