I've started to have some requests for Secret Service frequencies during the height of the '08 political campaign season. Here is what was published in the July 2007 Fed Files column.
Remember that at this time, only Senators Clinton and Obama have full time Secret Service protection. I have heard, but not confirmed, that Senator McCain may have US Capitol Police with him, or private security. But McCain has publicly refused Secret Service protection.
Also note that it is highly unlikely that the White House Communications Agency would be involved with any visits other than for the President or Vice President.
US Secret Service VHF Allocations
162.0750 USSS Uniformed Division
162.2875 Laurel, MD Trunked System
162.3125 USSS Uniformed Division
163.3125 USSS Uniformed Division
163.4500 Laurel, MD Trunked System
164.1000 X-RAY, New York City Field Office 1
164.1750 USSS Uniformed Division
164.4000 PAPA
164.4375 USSS Uniformed Division
164.6500 TANGO
164.7500 X-RAY
164.8000 X-RAY
164.8875 OSCAR
164.9875
165.2125 MIKE
165.2625 X-RAY
165.3375 X-RAY
165.3625
165.3750 CHARLIE
165.3875
165.4125 X-RAY
165.4875
165.5125 X-RAY
165.5250 Laurel, MD Trunked System
165.6500 X-RAY
165.6875 X-RAY - Washington DC Field Office
165.7875 BAKER
165.8500 X-RAY
165.9000 X-RAY
166.0000 Dignitary Protective Division 5
166.0250 Laurel, MD Trunked System
166.0500 X-RAY
166.2000 X-RAY - USSS Uniformed Division
166.2625 Laurel, MD Trunked System
166.4000 GOLF
166.4625 DHS Common
166.4875
166.5625 X-RAY
166.5875 X-RAY
166.6375 X-RAY
166.6500 Laurel, MD Trunked System
166.8000 X-RAY
167.0125 Reported POTUS / VPOTUS Protection Details
167.0375 Reported POTUS / VPOTUS Protection Details
167.4000 Laurel, MD Trunked System
167.9000 X-RAY – Dallas Field Office
168.0000
168.1250
168.2375 Diplomatic Protection Division 1
168.5875 Diplomatic Protection Division 2
169.9375 USSS Uniformed Division
170.0000 JULIET – Washington DC Field Office Alternate
170.0875 Diplomatic Protection Division 3
170.4375 USSS Uniformed Division
170.9875 USSS Uniformed Division
171.3875 New York City Field Office 2
171.7625 USSS Uniformed Division
172.0625 Diplomatic Protection Division 4
172.2250 New York Field Office 3
172.5625 USSS Uniformed Division
US Secret Service UHF Allocations
406.2750
407.6750 WHITE
407.7500 GRAY
407.8000
407.8750 GREEN
407.9000
407.9250 INDIA
408.0250
408.5000
408.9750
414.6750 YELLOW
414.8000 BLUE
414.8500 BROWN – Technical Security Division
414.9500 ORANGE – Technical Security Division
415.1000 BLACK
415.6500 SILVER
415.6750 GOLD – Technical Security Division
415.7500 GREEN
415.8000 VIOLET
415.9750 RED
418.1250 LAVENDER
418.1500 YELLOW
418.3250 BLACK
418.3500 GRAY
418.7750 ORANGE – Technical Security Division
418.8000 BROWN – Technical Security Division
419.0750 GOLD – Technical Security Division
419.1000 SILVER
419.7250 RED
White House Communications Agency (WHCA) VHF Allocations
162.6875 YANKEE
165.2125 MIKE
165.3750 CHARLIE
165.7875 BAKER
166.2000 Reported in use at Camp David Presidential Retreat
166.4625 DHS Common
166.5125 ALPHA / SIERRA
166.7000 NOVEMBER
167.0250 WHISKEY – Paging, reported no longer in use
167.9000 HOTEL
169.5125 SIERRA
169.9250 DELTA
170.0000 JULIET
171.2875 ZULU
White House Communications Agency (WHCA) UHF Allocations
406.4500 Transportable Trunking System
407.1250 Transportable Trunking System
407.4750
407.6750 Wideband UHF reported
407.8000 Transportable Trunking System
407.8500 ECHO – No longer in use
408.8500 Transportable Trunking System
408.8750 Transportable Trunking System
408.9250 Transportable Trunking System
415.6750 Wideband UHF reported
415.7000 FOXTROT – No longer in use
415.8000
418.2750 Transportable Trunking System
418.3750 Transportable Trunking System
418.4000 Transportable Trunking System
418.5000 Transportable Trunking system
418.5250 Transportable Trunking System