Monitor the Secret Service!
Secret Service VHF radios are set up as follows:





Channel  Designation


1         BAKER


2         CHARLIE


3         MIKE


4         TANGO


5         OSCAR


6         PAPA


7         BAKER REPEATER (165.7875/164.4000)


8         CHARLIE REPEATER (165.3750/166.4000)


Frequencies A through Z



Alpha      32.2300   WHCA-Transportation (vans) (possible DC base)


Baker     165.7875   USSS-Field Offices, President/VP/VIP security


Charlie   165.3750   USSS-Field Offices/Protection, command post coordination
(Nationwide Primary)


Delta     169.9250   WHCA-Marine Security Detachment, vans


Echo      407.8500   WHCA-SAM Uplink (Air Force 1 phone patch ground
uplink)


Foxtrot   415.7000   WHCA-SAM Downlink (Air Force 1 phone patch aircraft
downlink)


Golf      166.4000   USSS-Field Offices


          165.7625   Input to 165.3750 repeaters


Hotel     167.9000   WHCA-V.P. Staff/White House Garage


          165.6875   


          166.2125   President/VP Security


India     407.9250   USSS-Headquarters (Treasury Security Force)


          166.2000   


Juliet    170.0000   USSS-Paging/Camp David


Kilo      167.8250   Duplex Phone-Pres Res/LBJ, WHCA


Lima      168.7875   Duplex Phone-Pres Res/LBJ, WHCA (voice scramblers)


Lavender  418.1250   WHCA-Transportation


Mike      165.2125   USSS-Dignitary/Former Pres Protection, Counterfeit
Division


November  166.7000   WHCA-White House Staff


Oscar     164.8875   USSS-Presidential Protection Division (PPD), WHCA


Papa      164.4000   USSS-Field Offices/Protection, input to 165.2125
repeaters


Quebec      ---      


Romeo     166.4000   Input to 165.7875 repeaters


          164.4000   USSS-Repeater Outputs


Sierra    166.5125   WHCA-White House Staff


Tango     164.6500   USSS-Field Offices/Protection, Presidential/VP
Security


Uniform   361.6000   AF-1 Communications


          165.0875   


Victor    164.1000   WHCA, Presidential/VP Protection


Whiskey   167.0250   WHCA-Paging


X-ray     ********   SEE BELOW


Yankee    162.6875   WHCA-Presidential phone uplink or downlink


Zulu      171.2875   WHCA-Presidential phone downlink or uplink



The Treasury Common frequency is 166.4625.



X-ray is the reserve frequency pool and is not Treasury Common. Frequencies
here are used 
whenever a new frequency is needed.



X-ray frequencies



164.7500

164.8000

165.2625

165.3375

165.4125

165.5125

165.6500

165.6875

165.8500

165.9000

166.0500

166.2000

166.5625

166.5875

166.6375

166.8000

167.9000




The most active frequencies used before and during a presidential or
vice presidential visit 
are Baker, Charlie, Mike, and Tango, as well as any channel designated
for use by the WHCA. 
The frequency used most as a nationwide primary repeater channel is
Charlie, followed by 
Baker. Former presidents' security use Mike. Oscar is used for presidential
protection 
nationwide and Papa is used for White House perimeter patrols.



Pres Nighthawk Aircraft Fleet (HMX)




Transport          46.7500


Transport          375.0000


VIP Transport Net  34.3500


Command Post       142.7500


Squadron Common    265.8000


USMC helicopters   46.7000, 46.7500, 46.8000, 122.8500, 375.0000




Other Phone Patches

 


Nationwide-2   407.4750 uplink


Nationwide-2   415.8000 downlink


Limousines (Local/DC) 407.4500 duplex


Limousines (Local/DC) 408.2000 duplex





USSS Uniform Division (All repeaters use PL 103.5 Hz)




Gray          418.3500/407.7500 White House


Orange        418.7750/414.9500 White House 


Brown         414.8500/418.8000 Foreign Missions


Red           415.9750/419.7250 Foreign Missions


Silver        415.6500/419.1000 Foreign Missions


Yellow        414.6750/418.1500, 415.9500 WHCA ("Boardwalk") Foreign
Missions Patrol Primary




Training Division: Beltsville, MD




Green         415.7500/407.8750


Black         415.1000/418.3250


Blue          414.8000


Violet        415.8000


Communications Division:


Gold          415.6750/419.0750


Other:


Lavender      418.1250   WHCA Transportation


White         407.6750





Technical Security Division (Special Use)




F-1           408.0000


F-2           411.0000


F-3           408.5000


F-4           408.9750





NOTES: Frequencies in 407 Mhz band are used for agents' body radios
with "wristwatch" microphones.


WHCA stands for White House Communications Agency.


The PL used by the Secret Service is 103.5 Hz.


The above info was gathered from several sources.  Not all sources agreed
on
the same frequencies.