[MRCA] RF Communications RF-420S microphone

[John Caldwell]

Tom,
That’s the wrong connector for an RF-301 / URC-58 unless they used some sort of interface box.  I’m also not sure there’s RX audio on the panel connector for the microphone.  The RF-301 has a separate 1/4” headphone jack on the front bezel.


[IMG_5385.jpg]

[IMG_5386.jpg]

John W8SDA



From: Thomas Chirhart [mailto:k4ncgva at gmail.com]
Sent: Tuesday, October 18, 2022 8:03 PM
To: John Caldwell <JCALDWELL at PANEL-FAB.COM>; Military Collectors Association <mrca at mailman.qth.net>
Subject: Re: [MRCA] RF Communications RF-420S microphone

It’s an Amphenol connector with no part number…


[image]
Sent from my iPhone


On Oct 18, 2022, at 7:55 PM, John Caldwell <JCALDWELL at panel-fab.com<mailto:JCALDWELL at panel-fab.com>> wrote:
 The URC-58 / RF-301 used unobtanium Deutsch connectors for the mic, can’t tell from your photo what’s on the handset

John W8SDA
Sent from my wireless gizmo from a secret location


On Oct 18, 2022, at 7:28 PM, Thomas Chirhart <k4ncgva at gmail.com<mailto:k4ncgva at gmail.com>> wrote:
 That’s it Tim PCF boats/Swift Boats not the PTF.. had an AARP Memory lapse moment…
I assisted NavSta New Orleans put together three 58’s together for port control ops back 40 years ago. The 58’s came off the decommissioned PCF’s..
73
Tom
K4NCG

Sent from my iPhone


On Oct 18, 2022, at 7:00 PM, Tim <timsamm at gmail.com<mailto:timsamm at gmail.com>> wrote:

Hi Tom - Tell us more!  The PTF's that I served on had ARC-94's and GRC-109's for HF.  I never saw a URC-58 on board a PTF.  (Those were used on some PCF's in Vietnam however...)
Tim
N6CC

On Tue, Oct 18, 2022 at 3:47 PM Thomas Chirhart <k4ncgva at gmail.com<mailto:k4ncgva at gmail.com>> wrote:
I have a NOS 420S but not sure what radio it works with. I’m thinking the URC-58/RF-301 series since I had three of them decades ago off old Navy PTF boats.
Anyone know?



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