Civil Air Patrol

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Civil Air Patrol USAF Auxiliary CAP - the Civil Air Patrol are prolific users of HF-SSB (both USB voice and sometimes ALE data for frequency/link establishment, then back to SSB voice) and VHF-FM/VHF P25 digital voice systems in addition to traditional VHF-AM airband.

CAP maintains capability to communicate on other US government and military HF networks including SHARES, SECURE and COTHEN, among others. See the bottom of this page for Civil Air Patrol VHF frequencies.


Civil Air Patrol CAP MF and HF Frequencies

  • 2011 kHz USB - Nationwide
  • 2205 kHz USB - Nationwide
  • 2371 kHz USB - Net 5
  • 2374 kHz USB - Net 1
  • 2379 kHz USB - Net 6
  • 2393 kHz USB - Net 2
  • 2508 kHz USB - Net 3
  • 2525 kHz USB - Net 7
  • 2560 kHz USB - Net 7
  • 2511 kHz USB - Net 4
  • 3160 kHz USB - Net 7
  • 3204 kHz USB - Nationwide
  • 3385 kHz USB - Net 2
  • 4472 kHz USB - Nationwide
  • 4477 kHz USB - Nationwide
  • 4482 kHz USB - Net 5
  • 4502 kHz USB - Net 4
  • 4505 kHz USB - Net 5 - Regional primary
  • 4509 kHz USB - Net 7
  • 4512 kHz USB - Net 6
  • 4515 kHz USB - Net 8
  • 4576 kHz USB - Net 1
  • 4582 kHz USB - Net 8
  • 4591 kHz USB - Net 3
  • 4585 kHz USB - Net 2 - Regional primary
  • 4601 kHz USB - Net 7 - Regional primary
  • 4604 kHz USB - Net 3 - Regional primary
  • 4627 kHz USB - Net 6 - Regional primary
  • 4630 kHz USB - Net 4 - Regional primary
  • 4633 kHz USB - Net 2
  • 4636 kHz USB - Net 1 - Regional primary, also a SHARES frequency
  • 5006 kHz USB - Nationwide
  • 5447 kHz USB - Net 2
  • 6773 kHz USB - Net 1
  • 6806 kHz USB - Nationwide
  • 7341 kHz USB - Net 5
  • 7416 kHz USB - Net 6
  • 7602 kHz USB - Net 9 (Nationwide)
  • 7615 kHz USB - Nationwide, also a nationwide SHARES frequency
  • 7618 kHz USB - Net 7
  • 7630 kHz USB - Net 3
  • 7637 kHz USB - Net 8
  • 7656 kHz USB - Net 1
  • 7665 kHz USB - Net 2
  • 7704 kHz USB - Net 4
  • 8012 kHz USB - Nationwide
  • 9047 kHz USB - Nationwide
  • 9082 kHz USB - Net 2
  • 10162 kHz USB - Nationwide
  • 10504 kHz USB - Net 3
  • 10510 kHz USB - Net 5
  • 10518 kHz USB - Net 8
  • 10542 kHz USB - Net 7
  • 10545 kHz USB - Net 4
  • 10550 kHz USB - Net 6
  • 10557 kHz USB - Net 1
  • 11402 kHz USB - Net 9 (Nationwide)
  • 12081 kHz USB - Nationwide
  • 12098 kHz USB - Net 5
  • 12124 kHz USB - Net 2
  • 12177 kHz USB - Net 8
  • 12183 kHz USB - Net 6
  • 12200 kHz USB - Net 3
  • 12218 kHz USB - Net 1
  • 13415 kHz USB - Nationwide
  • 14357 kHz USB - Nationwide
  • 14424 kHz USB - Net 4
  • 14430 kHz USB - Net 7
  • 14438 kHz USB - Net 3
  • 14445 kHz USB - Net 2
  • 14450 kHz USB - Net 5
  • 14457 kHz USB - Net 6
  • 14902 kHz USB - Nationwide
  • 14914 kHz USB - Net 1
  • 15602 kHz USB - Nationwide
  • 16330 kHz USB - Net 8
  • 16333 kHz USB - Net 6
  • 16350 kHz USB - Net 4
  • 16353 kHz USB - Net 5
  • 17412 kHz USB - Nationwide
  • 18205 kHz USB - Net 4
  • 18513 kHz USB - Net 3
  • 18516 kHz USB - Net 7
  • 19814 kHz USB - Net 10 (Nationwide data)
  • 20508 kHz USB - Net 8
  • 20511 kHz USB - Net 5
  • 20873 kHz USB - Net 4
  • 21863 kHz USB - Nationwide
  • 22862 kHz USB - Net 4
  • 22872 kHz USB - Net 6
  • 22875 kHz USB - Net 7
  • 23006 kHz USB - Nationwide
  • 24553 kHz USB - Net 3
  • 24563 kHz USB - Net 8
  • 24566 kHz USB - Net 7
  • 25354 kHz USB - Nationwide
  • 26617 kHz USB - Net 6
  • 26620 kHz USB - Nationwide
  • 27546 kHz USB - Nationwide
  • 27900 kHz USB - Nationwide/Common Scene of Action Frequency
  • 29894 kHz USB - Nationwide


  • Net 1 - Northeast Region
  • Net 2 - Middle East Region
  • Net 3 - Great Lakes Region
  • Net 4 - Southeast Region
  • Net 5 - North Central Region
  • Net 6 - Southwest Region
  • Net 7 - Rocky Mountain Region
  • Net 8 - Pacific Region
  • Net 9 - National Network (voice)
  • Net 10 - National Network (data)

Nationwide frequencies are available for use by all regions, as are Net 9 and Net 10 frequencies.

Civil Air Patrol CAP VHF Frequencies

The Civil Air Patrol will use VHF airband frequency 123.100 MHz for air-to-air coordination during search and rescue (SAR). Training ELT usage on 121.600 MHz (old frequency) and 121.775 MHz (new frequency).

All frequencies listed below are mixed mode analog FM or digital P25 Project 25 digital voice, depending on mission requirements.

In addition to the frequencies listed below, Civil Air Patrol radios are programmed with the USCG VHF marine frequencies, the MURS frequencies and the nationwide VHF interop frequencies.

Channel Name or ID Frequency Remarks
CC 1 141.5750 MHz Command and Control 1 (simplex)
CC 2 141.0000 MHz Command and Control 2 (simplex)
AIR 1 149.2750 MHz Air to air 1 (simplex)
AIR 2 150.5625 MHz Air to air 2 (simplex)
GUARD 1 150.2250 MHz CAP Guard 1 (simplex)
R-01 through R-61 (odd numbering) 148.1250 MHz Primary repeater (input: 143.5500 MHz, various CTCSS tones or NAC codes)
R-02 through R-62 (even numbering) 148.1500 MHz Secondary repeater (input: 143.7000 MHz, various CTCSS tones or NAC codes)
R-67 through R-70 148.1375 MHz Airborne and/or portable/tactical repeater (input 143.6250 MHz, various CTCSS tones or NAC codes)
NATSAR 155.1600 MHz National Search and Rescue (SAR) common (simplex)