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W2LIE.net | Monitor Long Island, Inc. :: Forums :: Scanner Radio :: Long Island - General
Moderators: w2lie, Chieftaz, BobLandau, quint14, LI_Scan_Guy, cwerner
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MRRS P25 System testing today

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Posted: Wed Jul 29 2020, 02:27am

Posted by: GTR8000Posts: 138
Joined: Fri Nov 25 2016, 07:07am

I was originally told that they were separate systems connected via an ISSI link, however a more recent document seems to suggest that both systems share the same core. Well, two cores, as it indicates that they have a primary and secondary core in different geographical locations for redundancy.

In any event, it seems we now have potential duplication with some of the talkgroups. I'm not within range of the Metro-25 cell, so I don't know if those MTAPD talkgroups are still valid on that site. We really need someone to monitor both systems, in particular in/around NYC, and see if some of the older Metro-25 talkgroups are no longer in use.

604 D MTAPD D1/2 Dispatch
9032 T MTAPD D1/2 Dispatch

6027 D MTAPD D6/7 Dispatch
9048 T MTAPD D6/7 Dispatch

Oh and of course the FDMA/TDMA mode of each. Last I saw the Metro-25 site is carrying TDMA traffic now, but only for the newer MTAPD talkgroups, while the original talkgroups were still FDMA.
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