---
kind: "section"
citation: "47 C.F.R. § 95.779"
title: "47"
number: "95.779"
heading: "RCRS unwanted emissions."
url: "https://uscodex.org/cfr/47/95.779"
---

# §95.779. RCRS unwanted emissions.


Each RCRS transmitter type must be designed to satisfy the applicable unwanted emissions limits in this paragraph.

- (a) **26-28 MHz frequency band.** For an RCRS transmitter operating in the 26-28 MHz frequency band, the power of unwanted emissions must be attenuated below the transmitter output power in Watts (P) by at least:
  - (1) 25 dB (decibels) in the frequency band 4 kHz to 8 kHz removed from the channel center frequency;
  - (2) 35 dB in the frequency band 8 kHz to 20 kHz removed from the channel center frequency;
  - (3) 43 + 10 log (P) dB in any frequency band removed from the channel center frequency by more than 20 kHz.
- (b) **72 and 75 MHz frequency bands.** For an RCRS transmitter operating in the 72 and/or 75 MHz frequency bands, the power of unwanted emissions must be attenuated below the transmitter output power in Watts (P) by at least:
  - (1) 25 dB (decibels) in the frequency band 4 kHz to 8 kHz removed from the channel center frequency;
  - (2) 45 dB in the frequency band 8 kHz to 10 kHz removed from the channel center frequency;
  - (3) 55 dB in the frequency band 10 kHz to 20 kHz removed from the channel center frequency; and
  - (4) 56 + 10 log (P) dB in any frequency band removed from the channel center frequency by more than 20 kHz.
- (c) **Measurement bandwidths.** The power of unwanted emissions in the frequency bands specified in paragraphs [(a)(1)](#a-1) and [(2)](#a-2) and [(b)(1) through (3)](#b-1..b-3) of this section is measured with a reference bandwidth of 300 Hz. The power of unwanted emissions in the frequency ranges specified in paragraphs [(a)(3)](#a-3) and [(b)(4)](#b-4) of this section is measured with a reference bandwidth of at least 30 kHz.

## Notes

### Authority

Authority: 47 U.S.C. 154, 303, 307.

### Source

Source: 82 FR 41104, Aug. 29, 2017, unless otherwise noted.