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Federal Register / Vol. 86, No. 7 / Tuesday, January 12, 2021 / Rules and Regulations
2283

Fixed white space devices Antenna height above average terrain of unlicensed devices meters
Required separation in kilometers from co-channel digital or analog TV
full service or low power protected contour
16 dBm 40 mW

Less than 3
310
1030
3050
5075
75100
100150
150200
200250
250300
300350
350400
400450
450500
500550

20 dBm 100 mW

1.3
2.4
4.2
5.4
6.6
7.7
9.4
10.9
12.1
13.9
15.3
16.6
17.6
18.3
18.9

24 dBm 250 mW

1.7
3.1
5.1
6.5
7.9
9.2
11.1
12.7
14.3
16.4
17.9
19.3
20.4
21.4
21.8

2.1
3.8
6.0
7.7
9.4
10.9
13.2
15.8
18.2
20.0
21.7
23.2
24.4
25.5
26.3

28 dBm 625 mW

32 dBm 1,600 mW

2.7
4.8
7.1
9.2
11.1
12.8
16.5
19.5
22.0
23.9
25.7
27.3
28.7
30.1
31.0

3.3
6.1
8.9
11.5
13.9
17.2
21.4
24.7
27.3
29.4
31.4
33.3
35.1
36.7
37.9

36 dBm 4 W
4.0
7.3
11.1
14.3
18.0
21.1
25.3
28.5
31.2
35.4
37.6
39.7
41.9
43.7
45.3

40 dBm 10 W
4.5
8.5
13.9
19.1
23.8
27.2
32.3
36.4
39.5
42.1
44.5
46.9
49.4
51.4
53.3

42 dBm 16 W
5.0
9.4
15.3
20.9
26.2
30.1
35.5
39.5
42.5
45.9
48.4
51.0
53.8
55.9
57.5

Fixed White space devices Antenna height above average terrain of unlicensed devices meters
Required separation in kilometers from adjacent channel digital or analog TV
full service or low power protected contour 20 dBm 100 mW

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Less than 3
310
1030
3050
5075
75100
100150
150200
200250
250300
300350
350400
400450
450500
500550

0.1
0.1
0.2
0.3
0.3
0.4
0.5
0.5
0.6
0.7
0.7
0.8
0.8
0.8
0.9

30. The Commission declines at this time to alter the current method of protecting TV stations i.e., minimum separation distances outside of defined protected contours by changing to a terrain-based model as requested by some parties. The Commission did not propose to make this change in the NPRM. However, it recognizes parties arguments that more sophisticated propagation models could possibly identify unused TV spectrum more accurately than the current contourbased model while still protecting TV
service from harmful interference.
31. Receive sites of TV translators, low power TV stations, Class A TV
stations, MVPDs, and BAS facilities. In the NPRM, the Commission proposed to modify the keyhole-shaped exclusion zone around receive sites where white space devices may not operate. For fixed devices operating with an EIRP of greater than 10 watts, the Commission
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24 dBm 250 mW

28 dBm 625 mW

0.1
0.2
0.3
0.3
0.4
0.5
0.6
0.7
0.8
0.8
0.9
1.0
1.0
1.1
1.2

32 dBm 1,600 mW

0.1
0.2
0.3
0.4
0.5
0.6
0.8
0.9
1.0
1.0
1.1
1.2
1.3
1.4
1.5

proposed to increase the minimum required separation distance from the receive site from 10.2 kilometers to 16.6
kilometers co-channel, and from 2.5
kilometers to 3.5 kilometers adjacent channel, over an arc of more than 30
degrees outside the main lobe of the receive antenna. The Commission proposed no changes to the minimum required separation distances from a receive site 80 kilometers co-channel and 20 kilometers adjacent channel within a 30 degrees arc in the main lobe of the receive antenna. No party argued that the proposed changes are insufficient to protect these receive sites from higher power white space device operation. As such, the Commission adopts its proposal.
32. Private land mobile radio services and commercial mobile radio services PLMRS/CMRS. The Commission proposed to increase the minimum required separation distances between
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36 dBm 4 W

0.1
0.2
0.4
0.5
0.7
0.8
0.9
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8

0.2
0.3
0.5
0.7
0.8
1.0
1.2
1.4
1.5
1.6
1.8
1.9
2.1
2.1
2.2

40 dBm 10 W
0.2
0.4
0.6
0.8
0.9
1.1
1.3
1.5
1.7
2.1
2.2
2.4
2.6
2.7
2.8

42 dBm 16 W
0.3
0.5
0.7
1.0
1.0
1.3
1.5
1.7
1.9
2.3
2.4
2.7
2.9
2.9
3.0

fixed white space devices operating at greater than 10 watts EIRP and PLMRS/
CMRS operations, which include public safety operations, on TV channels 1420
the T-Band in 11 major markets and in some additional areas under rule waivers. In the 11 markets where PLMRS/CMRS stations are permitted to operate in the TV bands, the Commission proposed to increase the minimum required separation distance beyond the defined city center coordinates from 136 kilometers to 139.2 kilometers co-channel, and from 131.5 kilometers to 132.2 kilometers adjacent channel. The Commission also proposed to increase the minimum separation distance from PLMRS/CMRS
base stations operating under a waiver outside the 11 markets from 56
kilometers to 59.2 kilometers co-channel and from 51.3 kilometers to 52.2
kilometers adjacent channel. NPSTC
argues that these proposed separation
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