[FedCom] Fire Island

[Bob]

They have two input receivers, one on each end of the island (and many more
in between). There is a "voter" which continuously evaluates which receiver
is picking up the cleanest transmission and instantaneously routes that
specific audio to the repeater via a microwave link, muting the noisier
ones. You are seeing the two input NAC's, depending on the mobile unit
transmitting, I don't know who uses each NAC in this case, but this is a
common occurrence on Federal repeaters as well as other Public Safety
agencies dealing with large AOR (area of response). We have set up several
of our Federal systems here in Connecticut this way.
Bob

On Sat, Jun 6, 2026 at 4:49 PM Marcie via FedCom <fedcom at mailman.qth.net>
wrote:

> The only thing is if 166.300 is a input? they use 68F and 4F9 but on
> 171.625
> no N68F is ever copied just N4F9 so what 166.300 is a input to not sure?
>
> 73,s Marcy
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