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DC-Area Federal Freqs--Need Help Identifying

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dtscho

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Here are some federal frequencies found while monitoring from Gravelly Point (just north of Reagan National Airport). If anyone can ID these, please let us know.

164.9875 [107.2] Gerstner Hall? (previously listed as Defense Mapping Agency)
407.3375 [ d245] "extension 4927"; "boiler room"
407.5500 [103.5] strong
407.8250 [103.5] strong

139.8500 P25
162.3125 P25 enc (Secret Service Uniformed Foreign Missions)
165.7875 P25 enc (US Secret Service)
167.9000 P25 enc
173.0000 P25 Security-type traffic
407.6000 P25
407.8625 P25 enc/non-enc; Security-type traffic
414.7500 P25 enc/non-enc; strong; Security-type traffic
415.2000 P25 enc (Federal Protective Service)
417.8875 P25

409.8875 LTR PassPort; weak
410.6500 LTR PassPort; strong

(enc=Encrypted)

Thanks,
Dave
 

freqhopping

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Lo Co VA/ FM19
I just locked on to 407.8625 as a control channel displaying "LT System". :confused: But it doesn't remain transmitting like a control channel. I also have what may be a control channel on 408.4625, really weak though. This is from Loudoun County.
 

dehm

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Some IDs for you

dtscho said:
Here are some federal frequencies found while monitoring from Gravelly Point (just north of Reagan National Airport). If anyone can ID these, please let us know.

164.9875 [107.2] Gerstner Hall? (previously listed as Defense Mapping Agency)
407.3375 [ d245] "extension 4927"; "boiler room"
407.5500 [103.5] strong
407.8250 [103.5] strong

139.8500 P25
162.3125 P25 enc (Secret Service Uniformed Foreign Missions)
165.7875 P25 enc (US Secret Service)
167.9000 P25 enc
173.0000 P25 Security-type traffic
407.6000 P25
407.8625 P25 enc/non-enc; Security-type traffic
414.7500 P25 enc/non-enc; strong; Security-type traffic
415.2000 P25 enc (Federal Protective Service)
417.8875 P25

409.8875 LTR PassPort; weak
410.6500 LTR PassPort; strong

(enc=Encrypted)

Thanks,
Dave
According to The Capitol Hill Monitor Volume 10 Issue 1 (2005)

Uniformed Division, Secret Service (UDSS)

162.0750 r [Astro] White House 1 (169.9375 in)
163.3125 r [Astro] White House 2 (170.4375 in)
170.0000 s [Astro] White House Admin/Blair House
164.1750 s [ CSQ ] White House Notification System
166.2000 s [103.5] Vice President's Residence
162.3125 r [Astro] Foreign Missions 1 (171.7625 in)
164.4375 r [Astro] Foreign Missions 2 (172.5625 in)
170.9875 s [Astro] Foreign Missions 3
170.0000 s [127.3] Inter Ops (Secret Service common)
164.1000 s [Astro] Canine Tac
---------

Secret Service

165.7875 s [103.5/Astro] Baker
165.3750 s [103.5] Charlie
165.2125 s [103.5/Astro] Mike
164.6500 s [103.5] Tango
164.8875 s [103.5] Oscar
164.4000 s [103.5] Papa
165.6875 s [103.5/Astro] Washington Field Office
170.0000 s [103.5] WFO Alternate
166.4625 s [103.5/Astro] DHS-Common (was T-Common)
167.0125 s [Astro] Vice President's Detail
167.0375 s [Astro] President's Detail
------------

Federal Protective Service (FPS)

CTCSS is 131.8 when in analog mode.

415.2000 r/s CH1/2
411.2750 r/s CH3/4
414.4750 r/s CH5/6


Hope that helps,

dehm
 
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