Federal Freq Identification Thread (Consolidated)

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riveter

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DSD+ will show those encryption markers that are transmitted by the radio - it decodes that with the rest of the data stream accompanying the audio for each voice message.
 

wildbillx

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Even though im not in MD, I figured the radio ids havent been recorded. 418.900 nac 156 using des-ofb rids -216xxxx
 

riveter

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Anyone have any idea yet who is using 407.600 NAC 0F0?
407.8625 NAC 0F0 appears to possibly be multicasting the same traffic.
409.7125 NAC 0F0 may be another multicast tower, or a different channel.

The phrasing is very, very military. Very clipped, very strong comms discipline.

Intel:

Post MS3 mentioned repeatedly... apparently there's a phone there. Lots of related security chatter with doors secured, etc. Child Care mentioned. Security/law dispatch callsign appears something like "SYDOR" or "SIDE DOOR".

Heard Harris/MACOM 'ping' talk permit tone echo in background, indicating brand of system.

Callsign FULLBACK acknowledged for reporting wheels down - aircraft landing somewhere I suppose.

Treat to listen to, very pro.


===============================

On another note, I had also posted 410.4875 (analog) as another one I couldn't identify well. Additional notes:

Callsign BALTIMORE appears to be the net control.
Post 6 mentioned.


================================

And on yet another note, there appears to be a federal user doing DMR on 419.525 in the Annapolis area. Appears to be a simple repeater with CC 1.

TG 100 in use, RIDs 110s-120s

Unable to listen because my DSD+ keeps pooing itself. I'll try again at some point.
 
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maus92

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Anyone have any idea yet who is using 407.600 NAC 0F0?
407.8625 NAC 0F0 appears to possibly be multicasting the same traffic.
409.7125 NAC 0F0 may be another multicast tower, or a different channel.

The phrasing is very, very military. Very clipped, very strong comms discipline.

Intel:

Post MS3 mentioned repeatedly... apparently there's a phone there. Lots of related security chatter with doors secured, etc. Child Care mentioned. Security/law dispatch callsign appears something like "SYDOR" or "SIDE DOOR".

Heard Harris/MACOM 'ping' talk permit tone echo in background, indicating brand of system.

Callsign FULLBACK acknowledged for reporting wheels down - aircraft landing somewhere I suppose.

Treat to listen to, very pro.


===============================

On another note, I had also posted 410.4875 (analog) as another one I couldn't identify well. Additional notes:

Callsign BALTIMORE appears to be the net control.
Post 6 mentioned.


================================

And on yet another note, there appears to be a federal user doing DMR on 419.525 in the Annapolis area. Appears to be a simple repeater with CC 1.

TG 100 in use, RIDs 110s-120s

Unable to listen because my DSD+ keeps pooing itself. I'll try again at some point.

Speculation | on.

The 410.4875 might be a reshuffled FPS freq. FPS does have a Baltimore operation and uses posts. Weird though because I thought they use FiRST.

The USPS uses DMR in other cities around the country around 417-419.xxx.
 

ecps92

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The Fed Files Blog: Search results for state department

http://wiki.radioreference.com/index.php/Diplomatic_Security_Service

Anyone have any idea yet who is using 407.600 NAC 0F0?
407.8625 NAC 0F0 appears to possibly be multicasting the same traffic.
409.7125 NAC 0F0 may be another multicast tower, or a different channel.

The phrasing is very, very military. Very clipped, very strong comms discipline.

Intel:

Post MS3 mentioned repeatedly... apparently there's a phone there. Lots of related security chatter with doors secured, etc. Child Care mentioned. Security/law dispatch callsign appears something like "SYDOR" or "SIDE DOOR".

Heard Harris/MACOM 'ping' talk permit tone echo in background, indicating brand of system.

Callsign FULLBACK acknowledged for reporting wheels down - aircraft landing somewhere I suppose.

Treat to listen to, very pro.


===============================

On another note, I had also posted 410.4875 (analog) as another one I couldn't identify well. Additional notes:

Callsign BALTIMORE appears to be the net control.
Post 6 mentioned.


================================

And on yet another note, there appears to be a federal user doing DMR on 419.525 in the Annapolis area. Appears to be a simple repeater with CC 1.

TG 100 in use, RIDs 110s-120s

Unable to listen because my DSD+ keeps pooing itself. I'll try again at some point.
 

riveter

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Helpful. I'd seen that 0F0 was a common State NAC... I just couldn't figure out a good reason why there would be a near-constant stream of such high-quality military-type security traffic multicasting over the whole Baltimore area. Still scratching my head on that.

FRB might not be a bad candidate for the other one. FPS is all P25, mostly encrypted. The commo on 410.4875 is a little more casual than their style and confined to a fairly small area around downtown Baltimore. Actually, looking at that Wiki page, I'm surprised that didn't come up in my search a few weeks ago. Seems Richmond security uses that freq... probably the same for the Baltimore facility. Awesome, and thank you.

Maus, just 10-43 - the FiRST talkgroup for FPS is a patch from the UHF system. The same RID shows up for all transmissions on the FiRST net while the UHF RIDs change.
 
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ecps92

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410.4875 what PL??

See if the area around Baltimore matches to the FRB Bank in Baltimore, as sub-unit of Richmond

Helpful. I'd seen that 0F0 was a common State NAC... I just couldn't figure out a good reason why there would be a near-constant stream of such high-quality military-type security traffic multicasting over the whole Baltimore area. Still scratching my head on that.

FRB might not be a bad candidate for the other one. FPS is all P25, mostly encrypted. The commo on 410.4875 is a little more casual than their style and confined to a fairly small area around downtown Baltimore. Actually, looking at that Wiki page, I'm surprised that didn't come up in my search a few weeks ago. Seems Richmond security uses that freq... probably the same for the Baltimore facility. Awesome, and thank you.

Maus, just 10-43 - the FiRST talkgroup for FPS is a patch from the UHF system. The same RID shows up for all transmissions on the FiRST net while the UHF RIDs change.
 

riveter

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Don't delete what's right and relevant ;)

218.1 it is.
 

Spleen

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I'd forgotten to quote him and figured I could just delete and start over...apparently not.

And now you guys have me listening to this frequency (work is slow today). We have side door, outside door, and just now, ADA door. But no chatter otherwise.




Don't delete what's right and relevant ;)

218.1 it is.
 

Spleen

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Now they're getting chatty. Definitely USPS. Apparently the new deadline to get the mail out the door tomorrow is 15:00.
 

ecps92

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The DSS under DoS handles dignitary protection
Being in MD/DC there are plenty of Foreign Visitors under DSS Protection, which explains the near constant traffic.

"Powell, Powell, from Roughrider, all set, No Press, No Protesters, No Greeters all clear to come in"

$0F0 is on NAC the other is $293 for DSS

Helpful. I'd seen that 0F0 was a common State NAC... I just couldn't figure out a good reason why there would be a near-constant stream of such high-quality military-type security traffic multicasting over the whole Baltimore area. Still scratching my head on that.
 

ecps92

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On the 410.4875 ? Hmmmm

I know what USPS is, not a rookie to Federal Monitoring. :)

Folks have the POOR habit of replying, but Not using the feature to Quote who/what they are replying to.

USPS=United States Postal Service
 
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maus92

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On the 410.4875 ? Hmmmm

I know what USPS is, not a rookie to Federal Monitoring. :)

Folks have the POOR habit of replying, but Not using the feature to Quote who/what they are replying to.

In the last sentence in post #45 in this thread, I was speculating that the 417-419 Mhz range belongs to the USPS, and I think that Spleen was referring to that in post #53.
 

ecps92

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Thanks for the Clarification

Incorrect thinking for the 417-419 Range.
Federal VHF/UHF Channel Plans - The RadioReference Wiki

If (yes, there are still legacy systems) using the 'A' band correctly 415.1125 thru 419.9875 would be Repeater inputs. There is nothing that says USPS would be an exclusive or primary user of 417-419, you would need to look at the specific Freq, then incorporate the Tone and then after monitoring form the opinion.

Freq's had been (almost exclusive) primary for some agencies over the years, but that has changed in the past 10 yrs.

IF we are talking about the 419.5250 and it's Pair of 410.5250 from an earlier post this Freq (varied by Region) has been known to be used by VA, DEA, FBI, BoP and some still unidentified P25 and DMR users.

When you get in-around DC, due to So many Federal Agencies and QUASI Federal you get plenty of shared and Non Standard users.

As for DMR (outside DC) the primary Federal users have been FRB, USPS, VA and EPA
In the last sentence in post #45 in this thread, I was speculating that the 417-419 Mhz range belongs to the USPS, and I think that Spleen was referring to that in post #53.
 

maus92

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Thanks for the Clarification

Incorrect thinking for the 417-419 Range.

Maybe, but the way I interpreted the various posts, Spleen confirmed USPS using the 419 frequency and DMR in the Annapolis area. But then again, he didn't explicitly state that. Maybe he can clarify.
 
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