[ARC5] BC-453 in operation.

[Roy Morgan]

The Navy helicopters I flew (SH-3D)  almost never got to high altitudes but one winter morning at Brunswick Maine the airfield temperature was something like minus 30C (minus 22F). 

We had no ARC-5 type radios but rather the ARN-6 for beacon navigation. It was in the nose compartment and I think got no benefit from the aircraft heater. 

Is anyone running an ARN-6?  I have had one and a control box but no mount, tuning cable or control unit connector. 

Roy Morgan
K1LKY Western Mass

> On Feb 26, 2020, at 8:38 AM, Gordon White <gewhite at crosslink.net> wrote:
> 
> yes, the "circle S" receivers had specially-selected components. 
...
> The receivers (and I suppose the transmitters) were built to handle the altitude pressure and temperature changes.