Radio Control Panel

Technical Information

Catalogue No: C0916
Category: Radio Communication/Sensing
Object Type: Control/Data Entry
Object Name: Radio Control Panel
Part No: 649/1/22400/124
Serial No: 10109
Manufacturer: Plessey
Division: Unknown
Platform(s):
Year of Manufacture: Unknown
Dimensions:
Width (mm):
Height (mm):
Depth (mm):
Weight (g):
Location: Archive Object Store
Inscription(s):

CONTROL SUB-ASSEMBLY
649/1/22400/124
SERIAL No. 10109
This item's case is also marked: "MA046614".

Notes:

This Radio Control Unit is very similar, perhaps an early version of the Manual and Preset controller option from the ESD1741 lightweight VHF military airborne transceiver. This system is designed to provide high-reliability air-to-air and air-to-ground communications in all types of helicopter and fixed wing aircraft and is intended primarily for air traffic control use.
The equipment consists of two units, the transceiver and the control unit. Two alternative control units are available which either provide manual selection only of frequency or this one which has manual selection of frequency plus 30 preset channels. Both control units incorporate a built-in test equipment facility to check output power, modulation depth, and receiver sensitivity. A non-volatile store is used to provide the preset channel memory.
The unit is designed such that it can control two transceivers, one VHF and the other UHF.
Power for the transmitter and control unit is taken from the aircraft +28VDC supply.
This may be a GEC-Marconi item although Plessey has also been mentioned as a source.

Radio Control unit in general provides VHF and/or UHF frequency selection by means of continuous selection or it may also have preset channels. The frequency and channel will be displayed by a legend through a window on the older units or by an electronic display on later units. There may be a volume control and built-in-test.

Click to enlarge Click to enlarge Click to enlarge