§ 15.707   Permissible channels of operation.

   (a)(1) 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, except as provided in paragraph (a)(2) of this section.

   (2) White space devices are not permitted to operate on the first
   channel above and below TV channel 37 (608-614 MHz) that are available
   (i.e., not occupied by an authorized service) until June 23, 2017, but
   no later than release of the Channel Reassignment Public Notice upon
   completion of the broadcast television spectrum incentive auction, as
   defined in § 73.3700(a) of this chapter. If a channel is not available
   both above and below channel 37, operation is prohibited on the first
   two channels nearest to channel 37. These channels will be identified
   and protected in the white space database(s).

   (3) 600 MHz guard band. In the 600 MHz guard band between television
   and 600 MHz service downlink bands, white space devices may only
   operate immediately adjacent to the television band with a maximum
   bandwidth of 6 megahertz. White space devices are prohibited from
   operating in the three megahertz segment adjacent to the 600 MHz
   service band.

   (4) 600 MHz duplex gap. In the 600 MHz duplex gap, white space devices
   shall only operate in the 6 megahertz segment immediately adjacent to
   the 600 MHz service uplink band.

   (5) 600 MHz service band. White space devices may operate on
   frequencies in the 600 MHz service band in areas where 600 MHz band
   licensees have not commenced operations, as defined in § 27.4 of this
   chapter.

   (6) Channel 37 guard band. White space devices are not permitted to
   operate in either three megahertz segment above or below channel 37 if
   that spectrum is adjacent to the 600 MHz service band.

   (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.

   [ 80 FR 73070 , Nov. 23, 2015, as amended at  81 FR 4974 , Jan. 29, 2016]

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