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Federal Register / Vol. 86, No. 7 / Tuesday, January 12, 2021 / Rules and Regulations from the receive site for adjacent channel operation.
iii White space devices operating with more than 10 watts EIRP may not operate within 16.6 kilometers from the receive site for co-channel operation and 3.5 kilometers from the receive site for adjacent channel operation.
iv For purposes of this section, a TV
station being received may include a full power TV station, TV translator
station or low power TV/Class A TV
station.
c
2
ii White space devices operating with more than 4 watts EIRP and up to 10 watts EIRP may not operate within 10.2 km from the receive site for cochannel operation and 2.5 km from the receive site for adjacent channel operation.
iii White space devices operating with more than 10 watts EIRP may not
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operate within 16.6 kilometers from the receive site for co-channel operation and 3.5 kilometers from the receive site for adjacent channel operation.
d PLMRS/CMRS operations. 1
White space devices may not operate at distances less than those specified in the table in this paragraph d1 from the coordinates of the metropolitan areas and on the channels listed in 90.303a of this chapter.

TABLE 6 TO PARAGRAPH d1
Required separation in kilometers from the areas specified in 90.303a of this chapter White space device transmitter power
Co-channel operation Up to 250 meters HAAT

Up to 4 watts EIRP
Greater than 4 watts and up to 10 watts EIRP
Greater than 10 watts and up to 16 watts EIRP

2 White space devices may not operate at distances less than those specified in the table in this paragraph
Adjacent channel operation
Greater than 250
meters HAAT

134.0
136.0
139.2

Up to 250 meters HAAT

158.0
169.8
171.1

d2 from PLMRS/CMRS operations authorized by waiver outside of the
Greater than 250
meters HAAT

131.0
131.5
132.2

155.4
166.0
166.2

metropolitan areas listed in 90.303a of this chapter.

TABLE 7 TO PARAGRAPH d2
Required separation in kilometers from operations authorized by waiver outside of the areas specified in 90.303a of this chapter White space device transmitter power
Co-channel operation Up to 250 meters HAAT

Up to 4 watts EIRP
Greater than 4 watts and up to 10 watts EIRP
Greater than 10 watts and up to 16 watts EIRP

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f Low power auxiliary services, including wireless microphones. White space devices are not permitted to operate within the following distances of the coordinates of registered low power auxiliary station sites on the registered channels during the designated times they are used by low power auxiliary stations.
1 Fixed white space devices with 10
watts EIRP or less: 1 kilometer.
2 Fixed white space devices with greater than 10 watts EIRP: 1.3
kilometers.
3 Personal/portable white space devices: 400 meters.
g Border areas near Canada and Mexico. Fixed, mobile, and personal/
portable white space devices shall comply with the required separation distances in paragraph a2 of this section from the protected contours of TV stations in Canada and Mexico.

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16:05 Jan 11, 2021

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Greater than 250
meters HAAT

54.0
56.0
59.2

White space database.

a

PO 00000

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Up to 250 meters HAAT

78.0
89.8
91.1

White space devices are not required to comply with the separation distances in paragraph a2 from portions of the protected contours of Canadian or Mexican TV stations that fall within the United States.
h
1 Operation of fixed, mobile, and personal/portable white space devices is prohibited on all channels within 2.4
kilometers at the following locations.

i
1 Fixed white space devices may only operate above 4 W EIRP in less congested areas as defined in 15.703.

7. Amend 15.713 by revising paragraphs a1, e1, 2, 3, and 6, h, and l2 to read as follows:
15.713

Adjacent channel operation
51.0
51.5
52.2

Greater than 250
meters HAAT
75.4
86.0
86.2

1 To determine and provide to a white space device, upon request, the available channels at the white space devices location in the TV bands, the 600 MHz duplex gap, the 600 MHz service band, and 608614 MHz channel 37. Available channels are determined based on the interference protection requirements in 15.712. A
database must provide fixed, mobile, and Mode II personal portable white space devices with channel availability information that includes scheduled changes in channel availability over the course of the 48-hour period beginning at the time the white space devices make a recheck contact. In making lists of available channels available to a white space device, the white space database shall ensure that all communications and interactions between the white space database and the white space device include adequate security measures such that
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