[Scan-DC] DC FEMS UNENCRYPTS 7 a.m. Sunday!

Brian Rokus brianrokus at hotmail.com
Sat Feb 28 21:36:30 EST 2015


So I guess the follow-up question is does anybody know what the odds are of having older radios affiliated to force the FDMA fallback?
And after Alan's very-helpful info, it seems at least to me that they aren't really fully unencrypting. For example, B-3 (where a lot of the rescue incidents seem to go) will not be open, correct? I suppose it's always possible that they will change the procedure for assigning incidents to channels.

> Date: Sat, 28 Feb 2015 19:54:18 -0600
> From: ecarlson at gmail.com
> To: alan at henney.com
> CC: davidschoenberger at gmail.com; scan-dc at mailman.qth.net
> Subject: Re: [Scan-DC] DC FEMS UNENCRYPTS 7 a.m. Sunday!
> 
> "Dual Dynamic Mode," if enabled for specific talkgroups, will allow them to
> revert to FDMA if FDMA radios are affiliated to the talkgroup.
> 
> -Eric
> 
> On Feb 28, 2015 6:41 PM, "Alan Henney" <alan at henney.com> wrote:
> 
> > Unlike MPD, I think the FEMS talkgroups are dynamic (TDMA with fallback
> to FDMA for older radios like the XTS5000).  Can anybody confirm?  So you’d
> need a new scanner and might be able to receive the FDMA (typically on MAIN
> and DISP and on the others when they are affiliating with a Phase 1 radio).
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