Metro-25/MTA MRRS P25 System

[GTR8000]

Zone 7 simulcast is on the air covering most of Dutchess County

 

[GTR8000]

Zone 3 simulcast also now online, southern Westchester County.

 

[CqDx]

Thanks GTR8000, I noticed a new TG is added to the database and it is identical to the METRO25 system. I know both systems are Harris and the site map in the FCC filing specifically left out NYC.
Is this system (26E) and METRO25 (26D) integrated like an ISSI (whatever the Harris equivalent term for that!)?

 

[GTR8000]

Thanks GTR8000, I noticed a new TG is added to the database and it is identical to the METRO25 system. I know both systems are Harris and the site map in the FCC filing specifically left out NYC.
Is this system (26E) and METRO25 (26D) integrated like an ISSI (whatever the Harris equivalent term for that!)?

The two systems will be aware of each other, however the exact method of connection is unclear at this point. As far as I was told a while back, they are not sharing a core. ISSI is an industry standard term for the method of connecting two P25 systems, regardless of manufacturer.

 

[Bill1426]

I just put in the S. Westchester Site (Zone 3) (MRRS) and I'm getting techs doing tests.
TGID: 64012
UID: 9980041 & 9980042
Signal: 2 - 3 bars (stock antenna) in Harrison, NY.
The audio is really loud..

 

[GTR8000]

Followup on @CqDx's earlier question: The two systems are indeed linked via ISSI, I just confirmed it.

 

[dave3825]

I just put in the S. Westchester Site (Zone 3) (MRRS) and I'm getting techs doing tests.
TGID: 64012
UID: 9980041 & 9980042
Signal: 2 - 3 bars (stock antenna) in Harrison, NY.
The audio is really loud..

I have those 2 uid's logged on that tg here in East Islip via Unitrunker. Have to check my 436 recorded session, but heard lots of testing on that tg in Mastic NY. Strong signal from Sunrise down to Eleanor ave (indian reservation, gas 2.54)

 

[CqDx]

Hearing Zone 2 Simulcast control channel on 770.15625 RFSS 51 Site 51 at Tarrytown with a strong signal.

Site NAC is 033

 

[GTR8000]

Yep, already noted in the database.

Those with a keen eye will note that the Site NAC = the Site RFSS's hexadecimal value for all five cells.

 

[bill11312]

I have manually entered these in my BCD536 and 436, I am showing signal bars but not hearing testing. Is there a BandPlan that needs to be entered somewhere?

 

[GTR8000]

I have manually entered these in my BCD536 and 436, I am showing signal bars but not hearing testing. Is there a BandPlan that needs to be entered somewhere?

No bandplan needs to be entered. Testing is sporadic and not on all cells yet, so there may not be any activity on whichever cell you're picking up.

 

[bill11312]

Thank you GTR8000 for the fast reply, I will keep listening buddy.

 

[hakwye8518]

TG 64011, TG 64013 is active on zone 1 14:36 7-15-19

 

[KenMaltz]

cc on 770.94375 picked up here in Jericho, Long Island (NE Nassau Co.) at -104.7 dbm on SDR Play and discone @15:15 EDT.

 

[K2KOH]

Control channel 770.15625 for Zone 2 (N Westchester and Putnam counties) on the air

Interesting, I'm in Carmel and not getting any control channels

 

[Tank67]

Thanks GTR8000, I noticed a new TG is added to the database and it is identical to the METRO25 system. I know both systems are Harris

Really Metro-25 is a Harris system? Didn’t know that, thought it was Motorola after I saw MTA and troopers with APX radios lol


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[GTR8000]

Both are Harris infrastructure.

 

[radioman445]

Great map where did you obtain it. could be helpful in the quest for more info about the system?

Update on the system as of a few days ago:

Metropolitan Regional Radio System (MRRS)

25 12.5 kHz 700 MHz channel pairs in use (5 channels each in 5 simulcast zones)

64 above ground sites in the system. 54 currently on the air. 61 of 64 constructed. All 64 expected online by October 2019.

 

[CqDx]

It is part of the FCC license filing, under "Justification of Buildout Notification"

https://wireless2.fcc.gov/UlsApp/ApplicationSearch/applAdmin.jsp?applID=11557183#attachments

 

[CqDx]

Grid testing yesterday on Zone 7 in TDMA. Audio is coming in great.