10uV input for 50mW audio output doesn't seem all that bad for a receiver with no RF amplification.  Was this a civilian aviation VHF transceiver drafted into the military early in WW2?  I seem to remember that the ARC-4 was in service before either the ARC-1 or ARC-3, but you know how memory can confuse things!
Jim

Logic: Method used to arrive at the wrong conclusion, with confidence.  Murphy


On Sunday, July 20, 2025 at 06:16:59 AM CDT, Rob Flory <[email protected]> wrote:


Hi,

I am an ARC-4/WE 233 person in recovery.

I pursued it because they were installed on USS Massachusetts, and because they work on the 2m Amateur band.

I used to take mine around to shows and talk between it and my ARC-1.

Read the description of the exercise K4CHE and I did, which revealed the relative  deafness of the ARC-4.  


RF
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