[HCARC] Radio Trivia
John Canfield
bucket at janeandjohn.org
Sat Nov 24 13:39:13 EST 2018
Did not know that Gary!
John
WB5THT
On 11/24/2018 11:29 AM, Gary Johnson wrote:
> Anyone know what the green and red areas that are on old radio room clocks are for?? They mark 3 minute periods after each quarter hour that were designated Quiet Periods for listening for SOS signals.
>
> 73,
>
> Gary J
> NA3VY
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