Pye CN25 VHF Radio

Technical Data

Frequency bands; 75MHz
Power output 25 watts
Mode AM
Channels - 10

Receiver - Dual gate MOSFET Single conversion 10.7MHz IF
10dB Signal/noise ratio for 1microvolt input at 30% 1kHz modulation

Transmitter - Hybrid - 20watts carrier power

Public Address: 10 watts at less than 10% distortion

Pye Continental CN25 VHF Mobile Radiotelephone
	The Pye Continental CN25 replaced the earlier AM25 model in 1973. It was a ten channel mobile radio, with 20 watt power output operating in the 75MHz band. It featured an improved receiver using the latest MOSFET semiconductors, and was equipped with a 10 watt public address system. The CN25 was the standard police mobile radio from 1973 until the introduction of fully transistorised Tait equipment around 1980.	CN25 mounted on a mains power supply unit for use as a base station
	CN25 showing (clockwise from bottom left) - power supply, receiver IF/Audio board, TX/RX crystals, TX power amp enclosure	CN25 Transmitter power amplifier