---
kind: "section"
citation: "47 C.F.R. § 74.802"
title: "47"
number: "74.802"
heading: "Frequency assignment."
url: "https://uscodex.org/cfr/47/74.802"
---

# §74.802. Frequency assignment.

- (a) Frequencies within the following bands may be assigned for use by low power auxiliary stations:
- (b)
  - (1) Operations in the bands allocated for TV broadcasting are limited to locations at least 4 kilometers outside the protected contours of co-channel TV stations shown in the following table. These contours are calculated using the methodology in [§ 73.684](/cfr/47/73.684.md) of this chapter and the R-6602 curves contained in [§ 73.699](/cfr/47/73.699.md) of this chapter.
  - (2) Low power auxiliary stations may operate closer to co-channel TV broadcast stations than the distances specified in [paragraph (b)(1)](#b-1) of this section provided that such operations either—
    - (i) Are coordinated with TV broadcast stations that could be affected by the low power auxiliary station operation, and coordination is completed prior to operation of the low power auxiliary station; or
    - (ii) Are limited to an indoor location that is not being used for over-the-air television viewing, and the following conditions are met with respect to the TV channel used: The TV signal falls below a threshold of −84 dBm over the entire channel; the signal is scanned across the full 6 megahertz channel where the wireless microphones would be operated; and to the extent that directional antennas are used, they are rotated to the place of maximum signal.
- (c) Specific frequency operation is required when operating within the 600 MHz duplex gap or the bands allocated for TV broadcasting.
  - (1) The frequency selection shall be offset from the upper or lower band limits by 25 kHz or an integral multiple thereof.
  - (2) One or more adjacent 25 kHz segments within the assignable frequencies may be combined to form a channel whose maximum bandwidth shall not exceed 200 kHz.
- (d) Low power auxiliary licensees will not be granted exclusive frequency assignments.
- (e) -(f) [Reserved]

## Notes

### Amendments

[52 FR 2535, Jan. 23, 1987, as amended at 68 FR 12772, Mar. 17, 2003; 75 FR 3638, Jan. 22, 2010; 79 FR 48545, Aug. 15, 2014; 80 FR 71728, Nov. 17, 2015; 80 FR 73085, Nov. 23, 2015; 81 FR 4975, Jan. 29, 2016; 82 FR 41560, Sept. 1, 2017; 89 FR 83799, Oct. 18, 2024; 90 FR 57707, Dec. 12, 2025]

### Authority

Authority: 47 U.S.C. 154, 302a, 303, 307, 309, 310, 325, 336 and 554.

### Amendments

[52 FR 2535, Jan. 23, 1987, as amended at 68 FR 12772, Mar. 17, 2003; 75 FR 3638, Jan. 22, 2010; 79 FR 48545, Aug. 15, 2014; 80 FR 71728, Nov. 17, 2015; 80 FR 73085, Nov. 23, 2015; 81 FR 4975, Jan. 29, 2016; 82 FR 41560, Sept. 1, 2017; 89 FR 83799, Oct. 18, 2024; 90 FR 57707, Dec. 12, 2025]