12 m band — US Amateur Band Plan

Legend

Data, RTTY, and CW

Phone, image, and CW

Current propagation

Live band conditions - unlock in the app with Premium

Typical phone mode

USB

These mode(s) are commonly used for voice on this band. Most bands allow other modes, as well (see restrictions).

Restrictions

Amateur stations transmitting on the 24.93-24.99 MHz segment may not emit an angle-modulated (FM or PM) emission that has a modulation index greater than 1 at the highest modulation frequency.

§97.307(f)(1) and §97.305(c)

Amateur stations transmitting on the 24.93-24.99 MHz segment may not emit a non-phone emission that exceeds the bandwidth of a communications quality phone emission of the same modulation type. The total bandwidth of an independent sideband emission (having B as the first symbol), or a multiplexed image and phone emission, shall not exceed that of a communications quality A3E emission.

§97.307(f)(2) and §97.305(c)

Only a RTTY or data emission using these specified digital codes may be transmitted on the 24.89-24.93 MHz segment: Baudot, AMTOR, ASCII, or any technique whose technical characteristics have been documented publicly, such as CLOVER, G-TOR, or PacTOR, for the purpose of facilitating communications.

§97.305 and §97.307(f)(3)

The authorized bandwidth for the 24.89-24.93 MHz segment is 2.8 kHz.

§97.305 and §97.307(f)(3)

Contest activity shall not take place on the 630 m band. Non-contesting radio amateurs are encouraged to also use the contest-free bands during large international contests.

IARU Region 2 Band Plan, 2016

Band plan

RTTY

24.91 - 24.913 MHz

JT65 VFO Frequency

24.917 MHz

JT9 VFO Frequency

24.919 MHz

Alternate JT65 VFO Frequency

24.92 MHz

RTTY

24.92 - 24.925 MHz

PSK31 Calling Frequency

24.92015 MHz

WSPR Net Dial Frequency

24.9246 MHz

Packet

24.925 - 24.93 MHz

FreeDV Calling Frequency (USB)

24.933 MHz

Alternate JT9 VFO Frequency

24.94 MHz

SSTV calling frequency (USB)

24.975 MHz