138 MHZ p25 system heard around Pittsburgh PA

[jeffm77]

Hey all, was wondering if anyone in Southwestern PA can hear this system. Don't know what or who it is or where it's coming from. here is attached info from dsd+

Network: BEE00.8A8 Bandplan #4: Base=136. Offset=+0.9 Spacing=12.5 BW=12.5 Site: 1.1 NAC=8A0 ; Site 1 Neighbors: 1.2, 1.3, 1.4, 1.5 Channel 4-179: 138.2375 CC Channel 4-215: 138.6875 CC SCC Site: 1.2 NAC=8A0 ; Site 2 Neighbors:1.1, 1.3, 1.4, 1.5 Channel 4-163: 138.0375 CC SCC Channel 4-205: 138.5625 CC SCC VOICE Channel 4-255: 139.1875 VOICE DATA Channel 4-495: 142.1875 VOICE DATA Site: 1.3 NAC=8A0 ; Site 3 Neighbors: 1.1, 1.2, 1.4, 1.5 Channel 4-181: 138.2625 CC Channel 4-217: 138.7125 SCC Channel 4-291: 139.6375 VOICE Channel 4-519: 142.4875 VOICE Site: 1.4 NAC=8A0 ; Site 4 Neighbors: 1.1, 1.2, 1.3, 1.5 Channel 4-203: 138.5375 CC Channel 4-243: 139.0375 SCC Site: 1.5 NAC=8A0 ; Site 5 Neighbors: 1.1, 1.2, 1.3, 1.4 Channel 4-201: 138.5125 CC Channel 4-219: 138.7375 CC SCC

 

[nd5y]

Looks like you found a system that isn't in the database.

 

[jeffm77]

Looks like you found a system that isn't in the database.

Yea. I've looked everywhere. Turned to the radioreference forums for help I'ding it.

 

[Whiskey3JMC]

See info here. Could be federal or military

 

[nd5y]

Is it local to you? Can you hear all 5 sites all the time?

 

[jeffm77]

Is it local to you? Can you hear all 5 sites all the time?

Not sure where it is from. My sds100 barely can pick it up and decode it. some encrypted talkgroups and stuff in the clear.

 

[nd5y]

I'm not familiar with SW PA or what military/federal installations are near there.
All I can say is keep an eye on it and try to figure out if it is local or if you only hear it during band openings.
If it appears to be local and you can hear it 24/7 for days or weeks and then it disappears it could be the National Guard or somebody running a deployable system for training or something. I had that happen at Fort Sill, OK several years ago.

 

[mule1075]

Might have something to do with this adding freqs to the site maybe? Just throwing it out there to far away to decode anything.

United States Air Force (3D6) Site: Pittsburgh Air Reserve Station

United States Air Force (3D6) Site: Pittsburgh Air Reserve Station Details

www.radioreference.com

 

[u2brent]

Different System ID

 

[jeffm77]

Might have something to do with this adding freqs to the site maybe? Just throwing it out there to far away to decode anything.

United States Air Force (3D6) Site: Pittsburgh Air Reserve Station

United States Air Force (3D6) Site: Pittsburgh Air Reserve Station Details

www.radioreference.com

Different frequencies and different site Ids.

 

[mule1075]

Like i said i was just throwing it out there. have a good weekend all.

 

[jeffm77]

Can anyone else pick it up?

 

[mule1075]

Can anyone else pick it up?

I just tried again and I think I hear the 1st CC you listed but it is way to noisy to tell for sure. I will try again later tonight.

 

[Allen-KE8CCD]

Can anyone else pick it up?

After I get off work I will see if I can pick up any of the cc, I live in Eastern Ohio about 40 miles from there .is this a trunk system p25 phase I or II

 

[jeffm77]

After I get off work I will see if I can pick up any of the cc, I live in Eastern Ohio about 40 miles from there .is this a trunk system p25 phase I or II

Not really sure if it's phase 1 or 2.

 

[GTR8000]

It's a Phase I FDMA system. Here is the DSD+ data formatted and not all jumbled together...

Network: BEE00.8A8

Bandplan #4: Base=136. Offset=+0.9 Spacing=12.5 BW=12.5

Site: 1.1 NAC=8A0 ;
Site 1 Neighbors: 1.2, 1.3, 1.4, 1.5
Channel 4-179: 138.2375 CC
Channel 4-215: 138.6875 CC SCC

Site: 1.2 NAC=8A0 ;
Site 2 Neighbors:1.1, 1.3, 1.4, 1.5
Channel 4-163: 138.0375 CC SCC
Channel 4-205: 138.5625 CC SCC VOICE
Channel 4-255: 139.1875 VOICE DATA
Channel 4-495: 142.1875 VOICE DATA

Site: 1.3 NAC=8A0 ;
Site 3 Neighbors: 1.1, 1.2, 1.4, 1.5
Channel 4-181: 138.2625 CC
Channel 4-217: 138.7125 SCC
Channel 4-291: 139.6375 VOICE
Channel 4-519: 142.4875 VOICE

Site: 1.4 NAC=8A0 ;
Site 4 Neighbors: 1.1, 1.2, 1.3, 1.5
Channel 4-203: 138.5375 CC
Channel 4-243: 139.0375 SCC

Site: 1.5 NAC=8A0 ;
Site 5 Neighbors: 1.1, 1.2, 1.3, 1.4
Channel 4-201: 138.5125 CC
Channel 4-219: 138.7375 CC SCC

 

[redbeard]

I've been camped on 139.1875 NAC 8A0 for days trying to figure it out and haven't seen anything but a steady signal and 'Channel Release' messages on the console. Didn't spot any of the others to connect the dots. I'm glad I wasn't the only one scratching my head.

 

[redbeard]

I'm in Beaver County near the border with East Liverpool. Site 2 CC is the strongest. Site 1 is no signal at all. 3,4,5 are all about equal at 1/3 the strength of Site 2.

 

[nd5y]

Camp Ravenna, OH maybe?

 

[mtindor]

Camp Ravenna, OH maybe?

That might explain one or two sites -- not inconceivable that Shawn could pick up in that direction - he does pretty good over into that part of Ohio. But, The Ravenna Arsenal site already does have a pretty good presence on the MARCS system up there with quite a bit of activity on the MARCS statewide system. granted, their MARCS traffic is likely narrow in scope compared to what might be heard on their own dedicated site if one of the sites happens to be them.

The fact that Shawn can pick up four of the sites with varying degrees of success is pretty interesting. The question is what might it be that has five active sites within a 50 mi (or less) radius.

Mike