Service
Aviation
Air band AM from 118 to 137 MHz: tower, ground, CTAF, UNICOM, ATIS and centre sectors. Listening needs nothing but a scanner.
AIR
Aviation
Air band AM: tower, ground, ATIS, CTAF and enroute center sectors.
Band
118 – 137 MHz AM
Licensing
Receive only without a station license
Listen-only service. Monitoring is legal for hobbyists; transmitting on these frequencies without authorization is not.
Channel plan
| Channel | Frequency (MHz) | Notes |
|---|---|---|
| Emergency (guard) | 121.5000 | International distress |
| Unicom / CTAF | 122.8000 | Uncontrolled field traffic |
| Unicom / CTAF | 123.0000 | Uncontrolled field traffic |
| Multicom | 122.9000 | Activities and airstrips |
| Air-to-air | 122.7500 | Pilot to pilot |
| ATIS (typical) | 118.0000 | Airport information loop |
| Enroute center | 132.7500 | Typical ARTCC sector |
Other services
Station details are kept editable by the frequency owner, so tones, offsets and access notes stay current instead of ageing in a static table.