GroundRules
47 CFR 87.71: Frequency measurements.
Where this section sits in the code
- Title 47—Telecommunication
- CHAPTER I—FEDERAL COMMUNICATIONS COMMISSION
- SUBCHAPTER D—SAFETY AND SPECIAL RADIO SERVICES
- PART 87—AVIATION SERVICES
- Subpart C—Operating Requirements and Procedures
A licensed operator must measure the operating frequencies of all land-based transmitters at the following times:
(a) When the transmitter is originally installed;
(b) When any change or adjustment is made in the transmitter which may affect an operating frequency; or
(c) When an operating frequency has shifted beyond tolerance.
Collected 2026-08-27T02:26:28Z. Source file · JSON