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Civil Air Patrol
Radio Frequencies
 
     

NATIONWIDE C.A.P. CHANNELS ABOVE 30 MHz

AM 119.3500 Search and Rescue (Aircraft) (Rural Areas Only)
AM 120.8500 Search and Rescue (Aircraft)
AM 121.5000 AIRCRAFT EMERGENCY CHANNEL (Civilian and Military)
AM 121.6000 Practice Emergency Beacon (ELT-2)
AM 121.7750 Practice Emergency Beacon (ELT-1)
AM 122.0000 Flight Watch Nationwide Channel (Above 5,000 feet)
AM 122.7000 Glider Operations (Shared with UNICOM/MULTICOM)
AM 122.8000 Glider Operations (Shared with UNICOM/MULTICOM)
AM 122.9000 Search and Rescue (Aircraft)
AM 123.1000 Search and Rescue (Aircraft)
FM 143.7750 Search and Rescue (CAP Channel 6)
FM 143.9500 Search and Rescue (CAP Channel 7)
FM 148.1250 Repeater OUTPUT (CAP Channel 2) (Also used for simplex)
FM 148.1375 Simplex (CAP channel 3)
FM 148.1500 Repeater OUTPUT (CAP Channel 1) (Also used for simplex)
FM 148.7375 Search and Rescue (CAP Channel 5)
FM 148.9750 Search and Rescue (CAP Channel 8)
FM 149.4000 Old CAP Primary Channel (Now used for simplex only)
FM 149.5375 Search and Rescue (CAP Channel 4) (Aircraft-to-Ground Primary)
FM 149.8950 Packet Digipeater (Primary Packet Channel)
FM 149.9100 Aircraft Repeaters
FM 149.9250 Packet Digipeater (Secondary Packet Channel)
FM 149.9400 Aircraft Repeaters
FM 150.6625 Low-Power Operations
FM 165.1250 Government VHF Band Link (Tac-1)
FM 165.1500 Government VHF Band Link (Tac-2)
AM 243.0000 AIRCRAFT EMERGENCY CHANNEL (Military)
AM 243.5500 Practice Emergency Beacon (ELT-3)
FM 396.8750 ISR Channel 01
FM 397.1250 ISR Channel 02
FM 397.1750 ISR Channel 03
FM 397.3750 ISR Channel 04
FM 397.4250 ISR Channel 05
FM 397.4750 ISR Channel 06
FM 397.5500 ISR Channel 07
FM 397.9500 ISR Channel 08
FM 398.0500 ISR Channel 09
FM 399.4250 ISR Channel 10
FM 399.4750 ISR Channel 11
FM 399.7250 ISR Channel 12
FM 399.9250 ISR Channel 13
FM 399.9750 ISR Channel 14
FM 406.5000 ELT/EPIRB Radio Beacon UHF Frequency
FM 419.5000 Urban Search and Rescue*
FM 419.6375 Urban Search and Rescue*
FM 419.6875 Urban Search and Rescue*

NOTES

1) A star * shows that the frequency is shared with another government
user nationwide and the CAP has second priority on that frequency.

2) Most CAP units are equipped with radios that can
operate on frequencies outside the government bands.
For example: a CAP aircraft may have a CAP radio, a
137-174 MHz VHF-FM radio (used to talk to other
SAR agencies) and a VHF-AM radio. The VHF-AM radio
would cover 118-137 MHz, this way the aircraft can
talk to other aircraft that only have standard VHF-AM
aircraft band radios (usally on the 119.35, 120.85, 122.90,
and 123.10 MHz search and rescue frequencies.)

3) Most CAP vans and trucks have radios that operate
in the 143, 148, and 149 segments only, so these
are by far the most active of the channels.

4) CAP and NTIA have just begun installing the new
26 MHz AM radio gear in CAP vans, so right now, there
is very little activity on those channels, as well
as the 419 MHz channels.

5) The ISR (Inter-Squad Radio) channels are used nationwide by nearly every
government agency for low-power point-to-point communcations.
The NTIA issued these channels because FRS/GMRS radios are not allowed to be used
for government communications. You may hear other government communcations
on the ISR frequencies.

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