70 cm band
Privileges
E, G, T
Legend
Data, RTTY, and CW
Phone, image, and CW
Typical phone mode
FM, 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 in the 70 cm band must not cause harmful interference to, and must accept interference from, stations authorized by the United States Government in the radiolocation service.
§97.303(b)
Amateur stations transmitting on the 430-450 MHz segment must not cause harmful interference to, and must accept interference from, stations authorized by other nations in the radiolocation service.
§97.303(d)
No amateur station may transmit from north of Line A in the 420-430 MHz segment.
§97.303(m)(1) and §97.3(a)(30)
Amateur stations transmitting on the 420-430 MHz segment must not cause harmful interference to, and must accept interference from, stations authorized by the FCC in the land mobile service within 80.5 km of Buffalo, Cleveland, Denver, and Detroit.
§97.303(m)(2)
Amateur stations transmitting on the 420-430 MHz segment or the 440-450 MHz segment must not cause harmful interference to, and must accept interference from, stations authorized by nations in the fixed and mobile except aeronautical mobile services.
§97.303(m)(3)
An Earth station or telecommand station may transmit on the 435-438 MHz segment with a maximum of 611 W effective radiated power (1 kW equivalent isotropically radiated power). The transmitting antenna elevation angle between the lower half-power (−3 dB relative to the peak or antenna bore sight) point and the horizon must always be greater than 10°. No other station may transmit with a transmitter power exceeding 50 W PEP on the UHF 70 cm band from an area specified in §2.106(c)(270)(i) of this chapter, unless expressly authorized by the FCC after mutual agreement, on a case-by-case basis, between the Regional Director of the applicable field facility and the military area frequency coordinator at the applicable military base.
§97.313(f)
Amateur stations transmitting RTTY, data, or multiplexed emissions on the 70 cm band; The symbol rate must not exceed 56 kBd. A RTTY, data or multiplexed emission using an unspecified digital code under the limitations listed in §97.309(b) of this part also may be transmitted, the authorized bandwidth is 100 kHz.
§97.307(f)(6) and §97.305(c)
Amateur stations on the 70 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.
§97.307(f)(8) and §97.305(c)
Spread spectrum emissions are authorized on the 70 cm band with a maximum of 10 W PEP.
§97.305(c) and §97.313(h)
MCW emissions may be transmitted on the 70 cm band.
§97.305(c)
Test emissions may be transmitted on the 70 cm band.
§97.305(c)
Band plan
ATV repeater or simplex with 421.25 MHz video carrier control links and experimental
420 - 426 MHz
SSB SSTV calling frequency
430.95 MHz
PSK31 Calling Frequency
432.2 MHz
EME (Earth-Moon-Earth)
432 - 432.07 MHz
Weak-signal CW
432.07 - 432.1 MHz
70-cm calling frequency
432.1 MHz
Mixed-mode and weak-signal work
432.1 - 432.3 MHz
Propagation beacons
432.3 - 432.4 MHz
WSPR Net Dial Frequency
432.3 MHz
Mixed-mode and weak-signal work
432.4 - 433 MHz
Auxiliary/repeater links
433 - 435 MHz
Satellite only (internationally)
435 - 438 MHz
ATV repeater input with 439.250-MHz video carrier frequency and repeater links
438 - 444 MHz
Repeater inputs and outputs (local option)
442 - 445 MHz
Shared by auxiliary and control links, repeaters and simplex (local option)
445 - 447 MHz
National simplex frequency
446 MHz
Repeater inputs and outputs (local option)
447 - 450 MHz