[ARC5] USN HF and VHF Capabilities

[Mike Morrow]

The AN/ARC-4 (WE 233) provided four crystal-controlled channels from 140 to 144 MHz.  The RT-19/ARC-4 was supplied from the factory with four standard channels:
Channel 1 (Plane to Plane)      140.58 MHz  (Guard)
Channel 2 (Plane to Ground)   142.02 MHz
Channel 3 (Plane to Ground)   142.56 MHz
Channel 4 (Plane to Ground)   142.74 MHz
Crystal sets for other frequencies were available.

The SCR-522-A provided four crystal-controlled channels from 100 to 156 MHz.

Mike / KK5F

-----Original Message-----
From: howard holden <holden7471 at msn.com>
Sent: Jul 12, 2022 7:17 PM

Allegedly the SCR522 was used for &ldquo;dumbo&rdquo; duty waiting for pilot rescue in the PTO, at least on subs, replaced by the AN/ARC-4. Both 140-144mc. Don&rsquo;t know if other uses, but I&rsquo;d guess there were others.  
Howie WB2AWQ

 





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