The FM/AM500A Commumication Service Monitor is a small, lightweight, rugged and dependable test instrument with the following features:
FM signal generator
AM signal generator
Sensitive 2 V receiver for AM, FM, and SSB
10 Hz to 9999.9 Hz variable audio generator plus audio frequency error meter
1 kHz audio generator
Frequency error meter with 1 Hz resolution
0.2 PPM TCXO
SINAD/Distortion meter
Microphone input
Audio demodulator output
