LOL....Northeast and West kick butt over here in west Esco..everything else 3-4bars....maybe because of filter settings....everything on wide invert
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Are they all going to P25 phase 2 or staying at 1?
In post #196 of this thread Don, K6CDO, stated:
"Yes, the talkgroups are bridged between the two sets of infrastructure while the agencies involved are transitioning. The bridging will be removed over the next couple of weeks.
Agencies using Phase 2 radios will have their conversations on the NG network in Phase 2; should a Phase 1 only radio join the talkgroup, then the conversation will 'revert' to Phase 1."
So, to me, that means that:
1) In the immediate short term there will be some patching ("bridging") between the two systems while things are getting sorted out, kinks worked out, everybody moved over for a given agency, etc. This is why you will hear some of the same traffic on both systems. And some agencies or parts of agencies are still on the old system only while others are fully transferred to the NextGen system and may no longer need any bridging except for the mutual aid talk groups which, I assume, will remain bridged between the two systems pretty much until everybody is transferred;
2) The system WILL be fully Phase 2 at some point in the not-to-distant future. Phase 2 systems are designed to be backwards compatible to Phase 1 subscriber equipment (or at least they have that option). This means that, during a conversation on a given P2 capable talk group IF all of the subscribers' radios are P2 capable THEN the whole conversation will operate in P2 mode. But, if, say, a P1 only capable subscriber then joins the conversation the system will immediately revert to P1 operation so as to accommodate the older non-P2 subscriber. So, for the NextGen system, until all of the subscribers have P2 capable radios it will be P2 sometimes and P1 sometimes depending on the subscribers' capabilities during a given conversation on a given talk group. However, Don has also stated that there will be some talk groups that will be programmed to be P1 only and will remain so for some time even after everyone is fully moved over to the new system. These are mutual aid and/or wide area talk groups used for inter-agency communications. Paul listed these and Don essentially "blessed" the list awhile back in this thread. I assume that is a safety feature to accommodate any potential "stragglers" or maybe outside agency subscribers with unknown capability radios on these types of talk groups that may not have P2 functionality.
In terms of your scanner programming, I am not familiar with the operation of the SDS radios but it should be essentially transparent to your radio programming whether or not a user is P1 or P2 on a given talk group. There might be some indication on the radio's display (mine shows "D2" to indicate a P2 transmission) to indicate whether a transmission is P2 or not and you may notice some change in sound quality (for me, I note that all P2 transmissions are significantly louder than the P1 transmissions). Otherwise, as far as programming is concerned, just program the talk groups in as normal in P25 mode and the scanner should take care of the rest (if P2 capable, as the one you have certainly is, it will automatically accommodate the subscribers according to what the system makes that talk group work as). So don't worry, you'll hear everything fine and get to watch or hear the system evolve.
To date, I see many more transmissions in P2 mode on the West site than I do on the North site, just fyi.
Also, in case you aren't aware, Don, K6CDO is very intimately aware of and connected with the new and old systems, shall we say. His information is pretty much golden and very welcome here! You may already know that and, if so, I apologize, but figured I would point it out just in case.
-Mike
I just noticed that on site 42 the only TGID that is PHASE 2 is SDSO Inquieries...everything else is still 1
Same as Escondido PD Inquieries...phase 2
SLOT 2 whatever that means
Esco Fire Tac 5D Phase 2
Now SDSO Inquieries on SITE 42 went reg Phase 1, not 2. Weird
Seems they can activate PHASE2 at whim?
I get full bars on N,NE,E, and WEST sites. Perfect places...no lost signals for what I am hearing now from what I was listening to in RCS.
I get full bars on N,NE,E, and WEST sites. Perfect places...no lost signals for what I am hearing now from what I was listening to in RCS.
Not wierd at all - it's probably because a P1 only capable subscriber was on the talk group. See my previous post.
SLOT 2 would be indicating the second slot in the 2 slot TDMA P2 transmission. Phase 2 P25 is TDMA with two time slots as opposed to FDMA Phase 1. In TDMA you have one RF carrier carrying two voice paths, each time sampled in an interleaved fashion - that's the advantage of P25 Phase 2, twice the talk group/channel capacity. DMR is similar. With FDMA only one channel is carried by one RF carrier though there are ways to halve the carrier occupied bandwidth to cram two narrow FDMA signals in the same occupied frequency space which is what NXDN does.
P25 Phase 2 is TDMA two slot so your scanner is telling you which slot is being used by the conversation you are hearing.
-Mike
Wow. Thanks for the info Mike. BTW. Used my same list from RCS but changed it all to P25 from MOT and divided all my TGID'S. I also included zites N,E,NE,and WEST. As Dan said....easy peasey. Full bars on all 4 sites
Has OMEGA gone to the other side yet? I show no logs from either 3 of their TGID's
Yeah, they were in the initial group that was moved over to NG to test it.
That is why I am asking because I have heard absol nothing from RCS or the NEXTGEN on OMEGA
RIP the following from the old RCS...
Northcomm zones 3 and 4, including 3A...GONE.
Escondido Fire zone 5, except 5A...GONE.
Carlsbad PD Dispatch...GONE.
Del Mar Lifeguards...GONE.
Solana Beach Lifeguards...GONE.
Encinitas Lifeguards...GONE.
Northcomm zones 3 and 4, including 3A...GONE.
Escondido Fire zone 5, except 5A...GONE.
Carlsbad PD Dispatch...GONE.
Del Mar Lifeguards...GONE.
Solana Beach Lifeguards...GONE.
Encinitas Lifeguards...GONE.
RIP: The following talkgroups from the old RCS...you will be missed good friends.
North Coast Dispatch...GONE.
Vista Dispatch...GONE.
San Marcos Dispatch...GONE.
Escondido PD Dispatch...GONE.
Paul
Pass the kleenex!
I have begun submitting talk group updates for the next gen system to the RR administrators. I have been using Unitrunker for the past few months to verify active TG's and have only submitted known to be active TG's as I believe the RCS organization has had a change to clean up the TG's, or changed them or added new ones.
Hopefully we can have a data base of the NextGen RCS which is clean of unused TG's taking up space in our scanners.
Hopefully we can have a data base of the NextGen RCS which is clean of unused TG's taking up space in our scanners.
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