Cossor Radios Single and Multi Channel Radios enable voice comms to/from ATC to aircraft

UK FRR 619 & 620 Single Channel Rx United Kingdom Fixed Radio Receiver 619 – VHF Receiver 620 – UHF Receiver

UKFRT 621 & 622 Single Channel Tx United Kingdom Fixed Radio Transmitter 621 – VHF (117 – 137 MHz) low power 20 Watts 622 – UHF (225 – 400 MHz) low power 20 Watts

UKFRT 623 & 624 Single Channel Transmitters with 100 Watt Amplifiers attached. Improves range to approx 60 miles

Single Channel Disadvantages Time consuming to set up Transmitter subject to valve aging Restricted to one frequency Prone to tripping

Air Defence Radar sites Cossor Multi-Channel Where is it located? Airfields Air Defence Radar sites (including Convoys)

Equipment Frequency Range Freq:- 117-136.975 MHz (VHF) or 225 - 399.975 MHz (UHF)

Equipment Power Power O/P Amplitude modulation UHF 20 Watts or 100 Watts VHF 20 Watts only Amplitude modulation

The equipment can be operated locally By the use of a plug in hand held mic. for TX. By the use of earphone headset for RX.

The TX & RX equipment can be operated remotely. By the use of BT lines for Audio. By the use of BT lines and or Data link for frequency selection.

Equipment Configuration Stand alone TXER, local or remote operation for both audio and frequency change data. Stand alone RXER , local or remote operation for both audio and frequency change data. Transeiver (TX/RX integrated system) local or remote operation. For both audio and frequency change data.