Federal Freq Identification Thread (Consolidated)

[freqhopping]

I thought for sure I had posted a bunch about State Dept Security on the forum elsewhere in the past.

I've known of these freqs and NACs for a few years now.
In addition to
407.600
407.8625
409.7125
I've logged 408.600 and 409.0375 with 0F0 in the area, like fedfiles shows.

Comms on 163.5125 NAC011 sound similar.

 

[maus92]

I thought for sure I had posted a bunch about State Dept Security on the forum elsewhere in the past.

I've known of these freqs and NACs for a few years now.
In addition to
407.600
407.8625
409.7125
I've logged 408.600 and 409.0375 with 0F0 in the area, like fedfiles shows.

Comms on 163.5125 NAC011 sound similar.

I find that forums are more suited to immediate needs, and a bit difficult to use for historical purposes mainly because searching them is inefficient (OK, a PITA.) The RRDB and Wiki articles are better suited for storing info for later retrieval, but that's just my experience. That said, your response here seems to confirm State's use of the freq, so thanks!

 

[Spleen]

I was pretty sure from the chatter that I was picking up pure analog Postal Service on 410.4875 in Baltimore. I'll go out on a limb and assume it wasn't an image. I'm in Bolton Hill, so I'm guessing it was either the Lexington Street PO or maybe the Linthicum Heights processing facility. Had to concentrate on blizzard prep so I couldn't listen much today...

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.

 

[Spleen]

...but now that I got to listen to some just now, I believe I may have misinterpreted the "mail" chatter I heard yesterday. Or maybe I mixed up my PLs, this could really be the FRB down on Sharp Street Security/Access Control. Sorry for the confusion....

I was pretty sure from the chatter that I was picking up pure analog Postal Service on 410.4875 in Baltimore. I'll go out on a limb and assume it wasn't an image. I'm in Bolton Hill, so I'm guessing it was either the Lexington Street PO or maybe the Linthicum Heights processing facility. Had to concentrate on blizzard prep so I couldn't listen much today...

 

[ecps92]

Generally, FRB will have two channels.
One for PD the other for Maint
Generally, they both have the same Tone

Does this sound like the PD or the Maint Channel ??
See if you also get traffic and the same tone on 406.6625

...but now that I got to listen to some just now, I believe I may have misinterpreted the "mail" chatter I heard yesterday. Or maybe I mixed up my PLs, this could really be the FRB down on Sharp Street Security/Access Control. Sorry for the confusion....

 

[Spleen]

Didn't get to listen today, but it was definitely PD or security yesterday. I'm wondering if they have some sort of remote viewing and access control; they always make a point of saying "Baltimore" on the calls, as if there's a choice...

Generally, FRB will have two channels.
One for PD the other for Maint
Generally, they both have the same Tone

Does this sound like the PD or the Maint Channel ??
See if you also get traffic and the same tone on 406.6625

 

[riveter]

Likely the standardized callsign for their dispatch center.

HC DFRS calls theirs "Howard"

OC for all agencies calls "Ocean City"

Frequent good practice to have a location reference like that. Helps when you have multiple channels on your radio for different agencies or different areas within your agency.

 

[Spleen]

I'll try the suspected maintenance frequency Monday....now my ADD kicked in and I started watching the waterfall around that range. Getting analog transmissions on 406.8375, various DCS codes. That's listed to Goddard SFC in the RRDB, but I'm thinking I wouldn't be able to pick them up from midtown Baltimore. And I don't receive anything on any of the other frequencies listed for their EDACS system...

 

[Spleen]

Off and on listening yesterday and today. 406.6625 has been silent.

Generally, FRB will have two channels.
One for PD the other for Maint
Generally, they both have the same Tone

Does this sound like the PD or the Maint Channel ??
See if you also get traffic and the same tone on 406.6625

 

[Spleen]

406.975

"Loch Raven, (room #), toilet wont' stop flushing."

Maintenance at Loch Raven VA?

 

[riveter]

DF update regarding RF site locations for IWN (BF58A-010).

For site 1701 (CC 170.5), very intensive sniffing indicates that this may be a geographically disparate simulcast site with at least two RF sites. Currently the site is listed as located in Jessup.

Having now put some energy into finding it, the most likely actual location for this RF subsite is Fort Meade, inside the base. (There is a large tower in the northeast area that might be suitable)

However, DF also indicates a separate subsite in the Annapolis area on the same frequency with the same site ID. This appears to be a much lower power RF subsite, and indicates to be inside NSF Annapolis. As one of the three remaining NSS Annapolis mast-radiator towers now has much more compact RF equipment affixed to it, I thought it might be there.

As I said, both appear to be simulcast RF subsites of the 1701 site.

My prior indication based on signal strengths that there may be another RF subsite for 1701 in the Baltimore area may yet not be wrong. I'll have to take a sniff around.

 

[ThePhotoGuy]

Any idea what frequencies the Customs and Border Protection Officers (CBPO's) use at the Port of Baltimore and at BWI Airport? These officers work at the "port's of entry? These officers inspect cargo, allow entry to US, etc.

 

[ecps92]

Probably Simplex and low Power, best to search 162-174 or put in all the info in the RR Wiki

If anything like Boston, hand signals and cellphone, altho they all have P25 Radios

Any idea what frequencies the Customs and Border Protection Officers (CBPO's) use at the Port of Baltimore and at BWI Airport? These officers work at the "port's of entry? These officers inspect cargo, allow entry to US, etc.

 

[CqDx]

Hi all,

Seeing everyone is eager to help out the community. I would like to share my logs in my past years living in the DC area:

162.3250 NAC 293 USCG CG-111, Station Curtis Bay RID 5810xxx
162.6000 NAC 012 Secured and Locked on location, RID 7117, 293
162.7000 NAC 293 Strong in Baltimore
163.0500 NAC 293 USCG CG-112 Station Annapolis
163.1375 NAC 293 USCG CG-113
163.3125 NAC 808/202 USSS White House 2
163.7250 NAC 073 ICE Wash-1 RID 8489xxx
163.8500 NAC 081 USMS RID 8482xxx
164.1750 NAC 011/CSQ White House Alert Pagers RID 296
164.7250 NAC 012/05A Gettysburg National Park
165.3125 NAC 293 USCG CG-121 Sta Washington
166.0250 NAC 060 "Broadwalk is down for mainteance" RID 2080
166.3250 NAC 546 Post 1 10-42? RID 5582xxx
166.9500 NAC 788/4F9 NPS Fort McHenry
167.2125 NAC 167 FBI DC METRO 1
167.2500 NAC 68F DC IO-2 FBI WASH FO RID 3569XXX
167.5375 NAC 167 DEA Annapolis RID 3051XXX
167.6375 NAC 167 Baltimore H1 RID 3051XXX
167.6625 NAC 167 Baltimore A5 RID 3301XXX
167.6875 NAC 167 Baltimore A3 RID 8201XXX
167.7125 NAC 167 FBI DC METRO 2" RID 3301XXX
167.7500 NAC 68F FBI Baltimore FO I
167.7875 NAC 167 Baltimore A1 RID 3051XXX
168.5875 NAC 164 ICE Tactical 2 RID 6482XXX ICE
168.8750 NAC 653 DC-IO 2 Alexandria
169.7500 NAC 156 DEA Baltimore Metro 3
169.7750 NAC 4C5 NPS GWP Maintenance Crew RID 2
169.8250 NAC 375 RID 1 weak
169.8875 NAC 016 "1,2,3" RID 22
170.3625 NAC 4C5 NPS Lambs Knoll C&O Repeater RID 5
170.5125 NAC 4C5 NPS Medic/First Aid NPS
170.7875 NAC 546 COMMAND CENTER" "9TH FLOOR, 10TH FLOOR" RID 6814XXX
170.8500 NAC 864 USMS Baltimore
170.9625 NAC 650 ATF Baltimore 1
171.3625 NAC 293 Dept of Transportation Police
171.4750 NAC 650 ATF Baltimore 2
171.6625 NAC 156 DEA Baltimore Metro 1
171.7000 NAC 4F9 Shenadonah National Park 1 RID 1207
171.7250 NAC 5E7 Catoctin Mountain Park Rangers RID 500
171.7375 NAC 156 DEA Baltimore Metro 2
171.9375 NAC 293 USMS DC Net
172.4250 NAC 4C5 NPS Natl Mall Central 1
172.4625 NAC 4F9 Shenadonah National Park 2
172.7500 NAC 4C5 NPS Natl Mall Central 2
173.0625 NAC 293 USMS
173.5250 NAC 293 USMS
173.6375 NAC 293 USMS RID 8864XXX
173.6500 NAC 293 Dept of Labor Building Security
173.7125 NAC 167 FBI RID 8489XXX
173.7375 NAC 864 USMS RID 8487XXX
173.7500 NAC 167 FBI RID 3561XXX

 

[ThePhotoGuy]

173.875
NAC 1D3
RID: 118xx
ENC

164.8875
NAC 001
RID: 3752xx
ENC

170.85
NAC 864
RID: 84810xx
ENC

171.6625
NAC 156
RID: 22210xx
ENC

173.875
NAC 1D3
RID: 106xx
ENC

 

[LeSueurC]

173.875
NAC 1D3
RID: 118xx
ENC

164.8875
NAC 001
RID: 3752xx
ENC

170.85
NAC 864
RID: 84810xx
ENC

171.6625
NAC 156
RID: 22210xx
ENC

173.875
NAC 1D3
RID: 106xx
ENC

170.8500 USMS, 171.6625 DEA. At least down in VA it is.

 

[riveter]

CqDx, thanks for the share. Helpful stuff. Back at you with additional info on some:

166.325 NAC 546 - US DOI HQ Security, Washington DC.

167.5375 NAC 167 - Believe that to be an FBI net based on freq, NAC, RID, and other sources.

167.75 NAC 68F - Interop, "BAL IO2 LE 3"

170.7875 NAC 546 - may be for the DHS S&T office.

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

Photo:

164.8875 NAC 001 - USSS O - POTUS Detail

170.85 NAC 864 - USMS Net Baltimore

171.6625 NAC 156 - DEA Baltimore Metro 1 (see CqDx's list)

More submissions to come shortly, largely corroborating these lists (thanks).

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

Also, found something interesting in downtown Baltimore. DMR in the federal UHF spectrum:

410.4875 - history for FEMA and the FRB, analog and P25$293
Colour Code 6
TGs 51, 151
RIDs 2xx-4xx
Enhanced Privacy enabled.

Unsure if it's FRB Baltimore or not, but that was about the right geographic area.

 

[CqDx]

Thanks dpcain, the DMR one intrigued me. Last time I checked FRB Baltimore was using HT750 analog radios. The DMR may also be Baltimore VA Medical Center, which based on my research on fbo.gov, there are more and more VA clinics looking into DMR instead of P25.

 

[ecps92]

I would go for FRB since they were Analog 210.7 as late as January for Baltimore.
Odd but not out of the question as other FRB's have been TRBO for sometime.

Thankfully mine is still Analog for both Repeaters here in Boston

Could it be an image from 460 mhz ? (Generally where my images in the Govt' A Band emminate from)

CqDx, thanks for the share. Helpful stuff. Back at you with additional info on some:

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

Also, found something interesting in downtown Baltimore. DMR in the federal UHF spectrum:

410.4875 - history for FEMA and the FRB, analog and P25$293
Colour Code 6
TGs 51, 151
RIDs 2xx-4xx
Enhanced Privacy enabled.

Unsure if it's FRB Baltimore or not, but that was about the right geographic area.

 

[riveter]

I would go for FRB since they were Analog 210.7 as late as January for Baltimore.
Odd but not out of the question as other FRB's have been TRBO for sometime.

Thankfully mine is still Analog for both Repeaters here in Boston

Could it be an image from 460 mhz ? (Generally where my images in the Govt' A Band emminate from)

It's possible - the only IF that makes sense calculates out to that having to be an image of 453.2875, which is a nice valid freq. However, the nearest license for that is MCI Jessup in analog only. I'd side more on the side of that being FRB just based on the lack of licenses around. Could still be right though.