47 CFR § 87.71 Aviation Services

§ 87.71 Frequency measurements.

Current through Oct 13, 2026 · Read all of Part 87

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.

← § 87.69 Maintenance tests.§ 87.73 Transmitter adjustments and tests. →