---
kind: "section"
citation: "47 C.F.R. § 95.2775"
title: "47"
number: "95.2775"
heading: "MURS audio filter."
url: "https://uscodex.org/cfr/47/95.2775"
---

# §95.2775. MURS audio filter.


The audio filter referenced in [§ 95.2779](/cfr/47/95.2779.md) must satisfy the requirements in this section.

- (a) The audio filter must be between the modulation limiter and the modulated stage of the transmitter.
- (b) At any frequency (f in kHz) between 3 and 15 kHz, the filter must have an attenuation of at least 40 log (f/3) dB more than the attenuation at 1 kHz. Above 15 kHz, it must have an attenuation of at least 28 dB more than the attenuation at 1 kHz.

## Notes

### Authority

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

### Source

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