The JNCR System

[CqDx]

8138 and 8139 seems to be another wide area talkgroup. Does anyone in the region can monitor and see what traffic is coming up on 8138 and 8139?

 

[maus92]

I'll assign a sdr to the JNCR system and see what it finds off the NSA Annapolis site. I did notice that the NDW police dets are being patched from a different set of Supergroups today vs last week - perhaps a different console in use?

 

[BM82557]

The Supergroups I've seen in use on JNCR have been 81xx, 94xx and 96xx

 

[maus92]

I've let the site run for about 4 hours, and have not seen 8138 or 8139. Checking the sparse logs I have, those TGs have never appeared on the NSA Annapolis site.

 

[maus92]

Anyone know who / what tg 23050 is? It's patched along with NSA Washington, NSA Bethesda and NSA Annapolis Police dispatch on Supergroup 9440. Seen on the Fort Meade site.

 

[dlwtrunked]

^^^. For example, I live < 2 miles from the Naval Academy, and I have only a fair signal from their site.

For testing purposes, you should make sure that you are only monitoring the Dahlgren site. Sometimes traffic from a talkgroup associated with a particular facility will be broadcast on another site - sometimes way far away. I regularly see traffic from a PFPA tg show up on the USNA site, and the Pentagon is 30 miles west of here, lol. Is there a way for you to post the Neighbor sites you see when monitoring the various JNCR sites from your location - DSD will show them.

Indeed. And Dahlgren, particularly in the evening, often does that with Indian Head.

 

[BM82557]

Anyone know who / what tg 23050 is? It's patched along with NSA Washington, NSA Bethesda and NSA Annapolis Police dispatch on Supergroup 9440. Seen on the Fort Meade site.

I don't know who it is but I have seen it patched on sysid 5 sites 1.1 & 4.4 and on sysid 15 site 8.8

 

[maus92]

Saw an Army Consolidated Dispatch tg 8125 for Fort Myer MPs tgs 311, 309, and Fort McNair MPs tg 312, plus 2 UNID tgs 300 and 302. Seen off Fort Meade site. Doesn't appear to be full time; maybe multiselected for some sort of broadcast.

Also, gate duty at "Arlington" was using NDW North Police tg.

 

[maus92]

Another Army Consolidated police / Military Police tg 8126 is linking the same tgs as above on the NSA Annapolis site Saturday morning... checking Fort Meade. Not active any longer on either site.

 

[ezdropper]

Is talkgroup 9436 a simulcast of another talkgroup? Keep hearing them and other 94xx talkgroups, but none of them are in the database.

They mentioned Taylor Rd and Bldg 197 (Humphreys Building), guessing Naval Support Activity Bethesda.

 

[spanner]

Ezdropper,

They are patches.

As they did with Fed Fire a year or so ago, they are doing with Law Enforcement.

They will go away once they move to the new talkgroups.

Is talkgroup 9436 a simulcast of another talkgroup? Keep hearing them and other 94xx talkgroups, but none of them are in the database.

They mentioned Taylor Rd and Bldg 197 (Humphreys Building), guessing Naval Support Activity Bethesda.

 

[BM82557]

Currently 580A0-15 site 8.8 Camp David has only 1 neighbor, which is Fort Detrick. Site R and Quirauk show as Failed/Info Outdated/Isolated --

 

[BM82557]

Currently 580A0-15 site 8.8 Camp David has only 1 neighbor, which is Fort Detrick. Site R and Quirauk show as Failed/Info Outdated/Isolated --

View attachment 128603

I checked this morning, Quirauk is 385.625 CC showing 5-1.1 (Site R) as it's only neighbor, Site R is 385.9625 CC showing 5-2.2 and 5-4.4 (Quirauk) as neignbors --

JNCR System 5 Site 1.1 (Raven Rock/Site R)

New neighbor showing up , System 5 Site 2.2 385.9625 CC which is really strange as the CC I am decoding for System 5 Site 1.1 is 385.9625 -- Looks like this has been reported in the past -- https://forums.radioreference.com/threads/jncr-new-talkgroups.317413/page-2#post-2452070

forums.radioreference.com

 

[BM82557]

 

[maus92]

Site 5.2.2 cch 385.9625 is listed as a Site 5.1.1 traffic channel in the rrdb - is that still valid?

 

[BM82557]

Site 5.2.2 cch 385.9625 is listed as a Site 5.1.1 traffic channel in the rrdb - is that still valid?

Yes, 5-2.2 control channel always shows up as one of 5-1.1's listed freqs, 5-2.2's CC rotates as Harris systems do more often than Moto systems, Site 5-1.1's CC has been 385.9625 for quite some time, the other day 5-2.2's CC was 385.0250, see screen shot below --

 

[maus92]

I suppose you cannot actually receive 5.2.2? Are we still assuming that 5.2.2 is the inside-the-mountain network?

 

[BM82557]

I suppose you cannot actually receive 5.2.2? Are we still assuming that 5.2.2 is the inside-the-mountain network?

5-1.1's active CC is 385.9625 as shown in the last screen grab above, so 5-2.2 with a current CC of 385.9625 is not receivable, 5-2.2 must be in a location shielded from 5-1.1's direct transmission

 

[Chris52]

It seems there is no longer a patch between the Frederick system and Fort Detrick is it just me or does anyone else see it too ?

 

[maus92]

It's not full time from what I remember.