U.S. Marshals Service P25 TRS (BEE00-4F0)

mattmac553 · Oct 8, 2021

In the Philadelphia area I am picking up a strong control channel on 173.55.

Code:

2021/10/09  00:43:52  Freq=173.550000  NAC=4F8  Current network:  BEE00.4F0
2021/10/09  00:43:52  Freq=173.550000  NAC=4F8  Current site:  BEE00.4F0-1.128
2021/10/09  00:43:53  Freq=173.550000  NAC=4F8  BEE00.4F0-1.128 neighbor:  Site BEE00.4F0-1.117; CC=8-778  171.7250
2021/10/09  00:44:16  Freq=173.550000  NAC=4F8  Resetting neighbor list
2021/10/09  00:44:16  Freq=173.550000  NAC=4F8  Bandplan BEE00.4F0-0:  Base=851.00625  Offset=-45  Spacing=6.25  BW=12.5
2021/10/09  00:44:16  Freq=173.550000  NAC=4F8  Bandplan BEE00.4F0-1:  Base=762.00625  Offset=+30  Spacing=6.25  BW=12.5
2021/10/09  00:44:16  Freq=173.550000  NAC=4F8  Bandplan BEE00.4F0-2:  Base=851.0125  Offset=-45  Spacing=12.5  BW=12.5  Slots=2
2021/10/09  00:44:16  Freq=173.550000  NAC=4F8  Bandplan BEE00.4F0-3:  Base=762.00625  Offset=+30  Spacing=12.5  BW=12.5  Slots=2
2021/10/09  00:44:16  Freq=173.550000  NAC=4F8  Bandplan BEE00.4F0-4:  Base=935.0125  Offset=-39  Spacing=12.5  BW=12.5
2021/10/09  00:44:16  Freq=173.550000  NAC=4F8  Bandplan BEE00.4F0-5:  Base=935.0125  Offset=-39  Spacing=12.5  BW=12.5  Slots=2
2021/10/09  00:44:16  Freq=173.550000  NAC=4F8  Bandplan BEE00.4F0-6:  Base=406.0000  Offset=+9  Spacing=12.5  BW=12.5
2021/10/09  00:44:16  Freq=173.550000  NAC=4F8  Bandplan BEE00.4F0-7:  Base=406.0000  Offset=+9  Spacing=12.5  BW=12.5  Slots=2
2021/10/09  00:44:16  Freq=173.550000  NAC=4F8  Bandplan BEE00.4F0-8:  Base=162.0000  Offset=+5  Spacing=12.5  BW=12.5
2021/10/09  00:44:16  Freq=173.550000  NAC=4F8  Bandplan BEE00.4F0-9:  Base=162.0000  Offset=+5  Spacing=12.5  BW=12.5  Slots=2
2021/10/09  00:44:17  Freq=173.550000  NAC=4F8  BEE00.4F0-1.128 neighbor:  Site BEE00.4F0-1.117; CC=8-778  171.7250

GTR8000 · Oct 9, 2021

Nice find.

More strangeness with this system. The Philly area site has Trumbull, CT as a peer, but not Trenton. 🤦‍♂️

RadioDitch · Oct 9, 2021

GTR8000 said:
Nice find.

More strangeness with this system. The Philly area site has Trumbull, CT as a peer, but not Trenton. 🤦‍♂️

Seems like they're throwing darts or pulling bingo numbers for the site numbering also. There's no obvious grouping or logic to it (at the moment).

INDY72 · Oct 9, 2021

And I did tell you its going to be nationwide.

rr60 · Oct 9, 2021

milf said:
And I did tell you its going to be nationwide.

It appears something very similar over the West coast being worked on in RR.

US Immigration and Customs Enforcement (ICE) Trunking System, Various, Multi-State

US Immigration and Customs Enforcement (ICE) Trunking System Profile

www.radioreference.com

GTR8000 · Oct 9, 2021

milf said:
And I did tell you its going to be nationwide.

If you consider an 80 mile radius centered around NYC "nationwide"...sure.

mattmac553 · Oct 9, 2021

Here is the data from the straight from the P25 folder.

Code:

  Network: BEE00.4F0

  Bandplan #0:   Base=851.00625   Offset=-45     Spacing=6.25  BW=12.5
  Bandplan #1:   Base=762.00625   Offset=+30     Spacing=6.25  BW=12.5
  Bandplan #2:   Base=851.0125    Offset=-45     Spacing=12.5  BW=12.5  Slots=2
  Bandplan #3:   Base=762.00625   Offset=+30     Spacing=12.5  BW=12.5  Slots=2
  Bandplan #4:   Base=935.0125    Offset=-39     Spacing=12.5  BW=12.5
  Bandplan #5:   Base=935.0125    Offset=-39     Spacing=12.5  BW=12.5  Slots=2
  Bandplan #6:   Base=406.        Offset=+9      Spacing=12.5  BW=12.5
  Bandplan #7:   Base=406.        Offset=+9      Spacing=12.5  BW=12.5  Slots=2
  Bandplan #8:   Base=162.        Offset=+5      Spacing=12.5  BW=12.5
  Bandplan #9:   Base=162.        Offset=+5      Spacing=12.5  BW=12.5  Slots=2


    Site: 1.117

    Channel 8-778:    171.725      CC


    Site: 1.128  NAC=4F8

    Neighbor: BEE00.4F0-1.117

    Channel 8-861:    172.7625         SCC
    Channel 8-924:    173.55       CC

GTR8000 · Oct 9, 2021

mattmac553 said:
Here is the data from the straight from the P25 folder.

Yep, I added Site 128 last night.

Audiodave1 · Oct 9, 2021

GTR8000 said:
Yep, I added Site 128 last night.

Nice, Wasn't there last week.

GTR8000 · Oct 11, 2021

Site 103 confirmed at Mt Beacon

rr60 · Oct 11, 2021

GTR8000 said:
Site 103 confirmed at Mt Beacon

Overlooks KSWF nicely.

HM1529 · Oct 11, 2021

mattmac553 said:

In the Philadelphia area I am picking up a strong control channel on 173.55.View attachment 110545

Code:

2021/10/09  00:43:52  Freq=173.550000  NAC=4F8  Current network:  BEE00.4F0
2021/10/09  00:43:52  Freq=173.550000  NAC=4F8  Current site:  BEE00.4F0-1.128
2021/10/09  00:43:53  Freq=173.550000  NAC=4F8  BEE00.4F0-1.128 neighbor:  Site BEE00.4F0-1.117; CC=8-778  171.7250
2021/10/09  00:44:16  Freq=173.550000  NAC=4F8  Resetting neighbor list
2021/10/09  00:44:16  Freq=173.550000  NAC=4F8  Bandplan BEE00.4F0-0:  Base=851.00625  Offset=-45  Spacing=6.25  BW=12.5
2021/10/09  00:44:16  Freq=173.550000  NAC=4F8  Bandplan BEE00.4F0-1:  Base=762.00625  Offset=+30  Spacing=6.25  BW=12.5
2021/10/09  00:44:16  Freq=173.550000  NAC=4F8  Bandplan BEE00.4F0-2:  Base=851.0125  Offset=-45  Spacing=12.5  BW=12.5  Slots=2
2021/10/09  00:44:16  Freq=173.550000  NAC=4F8  Bandplan BEE00.4F0-3:  Base=762.00625  Offset=+30  Spacing=12.5  BW=12.5  Slots=2
2021/10/09  00:44:16  Freq=173.550000  NAC=4F8  Bandplan BEE00.4F0-4:  Base=935.0125  Offset=-39  Spacing=12.5  BW=12.5
2021/10/09  00:44:16  Freq=173.550000  NAC=4F8  Bandplan BEE00.4F0-5:  Base=935.0125  Offset=-39  Spacing=12.5  BW=12.5  Slots=2
2021/10/09  00:44:16  Freq=173.550000  NAC=4F8  Bandplan BEE00.4F0-6:  Base=406.0000  Offset=+9  Spacing=12.5  BW=12.5
2021/10/09  00:44:16  Freq=173.550000  NAC=4F8  Bandplan BEE00.4F0-7:  Base=406.0000  Offset=+9  Spacing=12.5  BW=12.5  Slots=2
2021/10/09  00:44:16  Freq=173.550000  NAC=4F8  Bandplan BEE00.4F0-8:  Base=162.0000  Offset=+5  Spacing=12.5  BW=12.5
2021/10/09  00:44:16  Freq=173.550000  NAC=4F8  Bandplan BEE00.4F0-9:  Base=162.0000  Offset=+5  Spacing=12.5  BW=12.5  Slots=2
2021/10/09  00:44:17  Freq=173.550000  NAC=4F8  BEE00.4F0-1.128 neighbor:  Site BEE00.4F0-1.117; CC=8-778  171.7250

@Whiskey3JMC likes to sniff out stuff in the Philly area. Maybe he can pin down a location. I know I won't be able to go looking for it for a few weeks.

Why this buildout when JIWN already exists? Could they be related?

Whiskey3JMC · Oct 12, 2021

HM1529 said:
@Whiskey3JMC likes to sniff out stuff in the Philly area.

Well after parking my SDR on 173.550 for about an hour I haven't noticed any additional activity to report other than what has already been observed by the posters above me...

GTR8000 · Oct 12, 2021

The Philly area site is likely co-located with the Philly FIO repeater (171.4375).

dave3825 · Oct 12, 2021

Site 117 Trumbull in Fairfield CT is showing a neighbor site 129 CC=8-769 171.6125.

171.6125 is also used in sites 102, Nassau NY and 118 Randolph NJ

And its also listing Site 1 NYC Area Simulcast with both the primary cc and an alt cc as separate neighbors. Two listings for the same site?

rr60 · Oct 12, 2021

GTR8000 said:
The Philly area site is likely co-located with the Philly FIO repeater (171.4375).

Don’t know where that is (173.550) however its a big signal. -87dBm SNR 15dB at my location 50 miles to the NE unless………another site.

Trenton is just above noise -100dBm SNR 7.1

GTR8000 · Oct 12, 2021

r60 said:
Don’t know where that is (173.550) however its a big signal. -87dBm SNR 15dB at my location 50 miles to the NE unless………another site.

That's the site in Randolph you're hearing.

GTR8000 · Oct 12, 2021

dave3825 said:
And its also listing Site 1 NYC Area Simulcast with both the primary cc and an alt cc as separate neighbors. Two listings for the same site?

I've seen that control channel roll a few times. Refresh/rebuild your neighbor list and see if it clears up.

rr60 · Oct 12, 2021

GTR8000 said:
That's the site in Randolph you're hearing.

Makes sense…thanks didn’t realize they shared.

dave3825 · Oct 12, 2021

GTR8000 said:
I've seen that control channel roll a few times. Refresh/rebuild your neighbor list and see if it clears up.

Lol,

U.S. Marshals Service P25 TRS (BEE00-4F0)

Member

NY/NJ Database Guy

Field Operations Member

Monitoring since 1982, using radios since 1991.

Active Member

NY/NJ Database Guy

Member

NY/NJ Database Guy

Member

NY/NJ Database Guy

Active Member

Pennsylvania DB Admin

Just another lowly hobbyist

NY/NJ Database Guy

* * * * * * * * * * * *

Active Member

NY/NJ Database Guy

NY/NJ Database Guy

Active Member

* * * * * * * * * * * *

Similar threads