13 cm band

Amateur stations transmitting on the 13 cm band must not cause harmful interference to, and must accept interference from, stations authorized by other nations in the radiolocation service.

Amateur stations transmitting on the 2.4-2.45 GHz segment must must accept interference from, industrial, scientific, and medical (ISM) equipment.

Amateur stations transmitting on the 13 cm band must not cause harmful interference to, and must accept interference from, stations authorized by other nations in the fixed and mobile services.

Amateur stations transmitting on the 2.305-2.310 GHz segment must not cause harmful interference to, and must accept interference from, stations authorized by the FCC in the fixed, mobile, except aeronautical mobile, and radiolocation services.

On the 13 cm band, a RTTY, data or multiplexed emission using a specified digital code listed in §97.309(a) of this part or an unspecified digital code under the limitations listed in §97.309(b) of this part may be transmitted.

The 5-unit, start-stop, International Telegraph Alphabet No. 2, code defined in ITU-T Recommendation F.1, Division C (commonly known as "Baudot"); The 7-unit code specified in ITU-R Recommendations M.476-5 and M.625-3 (commonly known as "AMTOR"); The 7-unit, International Alphabet No. 5, code defined in IT--T Recommendation T.50 (commonly known as "ASCII"); An amateur station transmitting a RTTY or data emission using a digital code specified in this paragraph may use any technique whose technical characteristics have been documented publicly, such as CLOVER, G-TOR, or PacTOR, for the purpose of facilitating communications.

On the 13 cm band, a station may transmit a RTTY or data emission using an unspecified digital code, except to a station in a country with which the United States does not have an agreement permitting the code to be used. RTTY and data emissions using unspecified digital codes must not be transmitted for the purpose of obscuring the meaning of any communication. When deemed necessary by a District Director to assure compliance with the FCC Rules, a station must: Cease the transmission using the unspecified digital code; Restrict transmissions of any digital code to the extent instructed; Maintain a record, convertible to the original information, of all digital communications transmitted.

Amateur stations on the 13 cm band may transmit a RTTY or data emission having designators with A, B, C, D, E, F, G, H, J or R as the first symbol; 1, 2, 7, 9 or X as the second symbol; and D or W as the third symbol is also authorized.

Spread spectrum emissions are authorized on the 13 cm band with a maximum of 10 W PEP.

F8E emissions (Multi-Channel FM Voice) may be transmitted on the 13 cm band.

MCW emissions may be transmitted on the 13 cm band.

Test emissions may be transmitted on the 13 cm band.

Pulse emissions may be transmitted on the 13 cm band.