---
kind: "section"
citation: "47 C.F.R. § 76.616"
title: "47"
number: "76.616"
heading: "Operation near certain aeronautical and marine emergency radio frequencies."
url: "https://uscodex.org/cfr/47/76.616"
---

# §76.616. Operation near certain aeronautical and marine emergency radio frequencies.

- (a) The transmission of carriers or other signal components capable of delivering peak power levels equal to or greater than 10−5 watts at any point in a cable television system is prohibited within 100 kHz of the frequency 121.5 MHz, and is prohibited within 50 kHz of the two frequencies 156.8 MHz and 243.0 MHz.
- (b) At any point on a cable system from 405.925 MHz to 406.176 MHz analog transmissions are prohibited from delivering peak power levels equal to or greater than 10−5 watts. The transmission of digital signals in this range is limited to power levels measured using a root-mean-square detector of less than 10−5 watts in any 30 kHz bandwidth over any 2.5 millisecond interval.

## Notes

### Amendments

[69 FR 57862, Sept. 28, 2004]

### Authority

Authority: 47 U.S.C. 151, 152, 153, 154, 301, 302, 302a, 303, 303a, 307, 308, 309, 312, 315, 317, 325, 335, 338, 339, 340, 341, 503, 521, 522, 531, 532, 534, 535, 536, 537, 543, 544, 544a, 545, 548, 549, 552, 554, 556, 558, 560, 561, 562, 571, 572, 573.

### Source

Source: 37 FR 3278, Feb. 12, 1972, unless otherwise noted.

### Amendments

[69 FR 57862, Sept. 28, 2004]