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 Foreign Missions Patrol ("Boardwalk") 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.