[MRCA] AN/ARC-48 UHF transceiver

scottjohnson1 at cox.net scottjohnson1 at cox.net
Wed May 21 00:56:29 EDT 2025


Does anyone out there have any familiarity with the subject radio?

It is a 4-channel crystal-controlled UHF transceiver about the size of a
command set receiver; each channel has its own RF chain with a common
AF/Audio/modulator chassis.  Probably 2-3 W output power.

They managed to pack 37 miniature and subminiature tubes in this thing with
no forced convection cooling.  The only reference I could find states it was
used in the H-13 (Bell 47).

It was built for the USN by Telephonics,1953 contract date, has a
solid-state dynamotor (Again, command receiver type mounting), most
certainly an upgrade later in its life.

Any information or anecdotes welcome!

 

Regards,

 

 

Scott V. Johnson W7SVJ/AFA6SJ

Sunburst Engineering

5111 E. Sharon Dr.

Scottsdale, AZ 85254

M (480) 550-2358

scottjohnson1@ cox.net

scott.johnson at ieee.org

 

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