We have a couple of Marconi in different parts / not working condition.

The 2955 Radio Communications Test Set is a comprehensive radio transceiver test unit which covers the frequency range from 400kHz to 1GHz and is used for testing AM, FM, and Phase Modulation measurements. Comprehensive facilities are provided for testing all types of AM, FM andΦM mobile radio equipment using selective calling, full duplex radio telephones, base station and repeater equipment.

FEATURES:
Rx Mode Sensitivity: -140 dBm with 50W Reverse Power Protection
Internal Audio Oscillator: 50 HZ to 15 kHz plus 1 kHz fixed
Power Meter: 50 mW to 150 WATTS
Audio Generator: 50 Hz to 15 kHz
Single key mode selection for transmitter, receiver and duplex testing
Full duplex facility tests radio telephones and cross-band repeaters
Built-in Modulation Meter Sinad Meter Distortion Meter Digital Scope
AF distorion, S/N, and SINAD measurments
Selective calling tones encoder/decoder including sub-audible frequencies
Built-in self test and operator guide
Twin 8-digit counter displays for measuring AF & RF signals
Independant tuning for one and two port duplex systems
GPIB