Secret Service VHF radios are set up as follows:

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.