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 <[email protected]> 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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