47 CFR § 15.707 - Permissible channels of operation.
(1) 470-698 MHz band. All white space devices are permitted to operate on available channels in the frequency bands 470-698 MHz (TV channels 14-51), subject to the interference protection requirements in §§ 15.711 and 15.712.
(2) 600 MHz duplex gap. White space devices may operate in the 657-663 MHz segment of the 600 MHz duplex gap.
(3) 600 MHz service band. White space devices may operate on frequencies in the bands 617-652 MHz and 663-698 MHz in areas where 600 MHz band licensees have not commenced operations, as defined in § 27.4 of this chapter.
(4) Channel 37 guard band. White space devices are not permitted to operate in the band 614-617 MHz.
(b) Only fixed white space devices that communicate only with other fixed white space devices may operate on available channels in the bands 54-72 MHz (TV channels 2-4), 76-88 MHz (TV channels 5 and 6), and 174-216 MHz (TV channels 7-13), subject to the interference protection requirements in §§ 15.711 and 15.712.