Call me nieve or whatever, as I am not from downstate, but why wouldn't they switch to the Westchester County P25 Phase II system that was just built out? I'm confused about this whole Westchester and MTA/MRRS issue. Is the Westchester system not designed to handle all those agencies or what?
MRRS System (MTA PD)
- Thread starter K2KOH
- Start date
I can't speak with any authority on it but the best I can tell, the new p25 county system was only really built with FD / EMS in mind just to replace their old system.
The greater portion of the police agencies were mostly using VHF (except the cities) and most agencies had each other's channels in their radios if needed.
My agency had MTA come by and show us a brief demonstration. We were left with the impression that the County was playing the cards very close to their chest and not really sharing any info about plans to make a countywide LE system and that it was always this perpetual "wait and see" conversation.
If it weren't for the price tag, we would have probably switched over since we are pretty much alone on UHF and frequently respond to metro north related calls. With the exception of the old Hotline phone at the desk, we were completely in the dark for inter-ops with other agencies. This issue was somewhat fixed however when the county replaced the Hotline with their Zello network. All of our cars are equipped with a Zello phone and the officers can add Zello to their personal phones as well if they want
The greater portion of the police agencies were mostly using VHF (except the cities) and most agencies had each other's channels in their radios if needed.
My agency had MTA come by and show us a brief demonstration. We were left with the impression that the County was playing the cards very close to their chest and not really sharing any info about plans to make a countywide LE system and that it was always this perpetual "wait and see" conversation.
If it weren't for the price tag, we would have probably switched over since we are pretty much alone on UHF and frequently respond to metro north related calls. With the exception of the old Hotline phone at the desk, we were completely in the dark for inter-ops with other agencies. This issue was somewhat fixed however when the county replaced the Hotline with their Zello network. All of our cars are equipped with a Zello phone and the officers can add Zello to their personal phones as well if they want
Does anyone have any info on TG 9029? I heard it on Zone 3 (S Westchester) Recently but couldn't make out the audio.
I thought Yorktown PD backed out of that deal as coverage was very poor on the north side of town, and they got tired of waiting for MTA to add coverage. Strange.
Thanks.
I know MTA has been building new sites to cover the gaps in coverage. The board report mentions four new sites are built and three existing sites have been re-optimized. One of the new site is Hartsdale station that was brought online earlier this year. Presumably to provide coverage along the Harlem River (ie. Scarsdale).
Hear them on zone 1 and more radio checks than anything else. Does sound like security
Heard guys from EF Johnson meeting with others in CT and also caught radio checks from a different tg referencing Troop P.
It’s been coming over the Metro simulcast too. I’ve been seeing it periodically throughout the day and even at 9:30ish at night
Alarms50
Member
The P25 Phase 2 system was designed to handle the subscribers (Fire/EMS/BeeLine Buses) that migrated from the analog trunked system. With only six RF channels available per zone (North and South), the P25 Phase 2 system did slightly expand the system capacity.
The capacity went from five talkpaths on the analog system (one control channel and five RF channels) to eight talkpaths on the digital system (one control channel and four RF channels) With the small amount of additional capacity WCPD was provided with access to the new system. NOTE: the P25 system is currently down one RF channel in both the North and South zones due to one of the RF channels being used in the new UHF paging system. A search for a replacement frequency(s) is ongoing.
Alarms50
Member
The explanation as to why you think this system is "a joke" I posted in post #55 on page 3 of this thread
In your imagined scenario where all 60 FD's, all 26 EMS agencies, all 41 PD's in Westchester County (and other agencies) were on this system.
Now imagine when it hits the fan, how many dissatisfied subscribers do you think there would be when 127 AGENCIES (not including any "others") try to access a system AT THE SAME TIME with only EIGHT TALKPATHS (8 CHANNELS), there will be ALOT OF BONKS!!! Not a good design of a system.
As I stated in post #55 "In a perfect world..."
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Your math is off slightly. The north cell has 6 frequencies, thus 10 talkpaths. The south cell is down to 5 frequencies/8 talkpaths due to 470.200 being "borrowed" for paging. I'm looking at Unitrunker on both cells right now, there is no channel down on the north cell, all 6 are in use (full capacity).
Also, frankly, the talk about A66 is off-topic in this thread, so any discussion of that system should be taken elsewhere.
Your math is way off here, as well. I recommend looking up trunking system capacity calculations. Look at some of the Erlang model calculations on this site: Ready, set calculate! -- the conclusion would be that even if there were super heavily loaded systems, they would have limited fully busy channels. When the number of available talkpaths increases by one, the number of fully busy talkpaths drops exponentially.
Trunking systems are stupidly expensive but are engineered by intelligent people to share limited resources well.
This!
To put it into some perspective, Orange County also has a two-cell TDMA system, with 14 talkpaths available per cell. They are a large county with all public safety operating on the system (~30 law enforcement agencies including the NYSP, ~52 fire departments, ~18 EMS agencies, county DPW, etc.) and it is exceedingly rare to see the system use more than 8 talkpaths simultaneously, even when the SHTF.
So far in 2023 out of 4,471,358 PTT's on the North cell and 4,871,293 PTT's on the South cell, there have only been 203 PTT's on North and 2,326 PTT's on South that have required the use of a 9th and 10th talkpath. That works out to 0.0045% of activity on North and 0.047% on South of all activity systemwide. Minuscule numbers which may've resulted in a few bonks here and there.
Yeah, I guess I was mistaken. They have also been doing some testing this past week and weekend. I also heard related activity on 9585, so that must be their Tac channel. All on Zone 2. Alltho I think they are still just testing and not active full-time yet, their VHF is still very active. It makes sense that they are affiliated with Zone 2 as it encompasses Northern Westchester County as well as Putnam.
I haven't seen or heard of activity related to this in the past 2 weeks. Maybe they are just less active than I thought.
Could be possible they have a few portables on the system to be able to communicate with the police agencies on MRSS. This is only speculation though.
Heard 6031 today for the first time in a while doing radio checks. 9320### UIDs.
My next guess if this isn't BCI because it isn't the NYSP block of UIDs is perhaps this is one of the DA offices. I know they were on the Metro-21 system.
My next guess if this isn't BCI because it isn't the NYSP block of UIDs is perhaps this is one of the DA offices. I know they were on the Metro-21 system.
I was logging 9320xxx rid's on 6032 back in January on Metro.
Yes, I have logged those too back in September.
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