47 C.F.R. § 80.217

Current through October 31, 2024
Section 80.217 - Suppression of interference aboard ships
(a) A voluntarily equipped ship station receiver must not cause harmful interference to any receiver required by statute or treaty.
(b) The electromagnetic field from receivers required by statute or treaty must not exceed the following value at a distance over sea water of one nautical mile from the receiver:

Frequency of interfering emissionsField intensity in microvolts per meter
Below 30 MHz0.1
30 to 100 MHz.3
100 to 300 MHz1.0
Over 300 MHz3.0

or

Deliver not more than the following amounts of power, to an artificial antenna having electrical characteristics equivalent to those of the average receiving antenna(s) use on shipboard:

Frequency of interfering emissionsPower to artificial antenna in microwatts
Below 30 MHz400
30 to 100 MHz4,000
100 to 300 MHz40,000
Over 300 MHz400,000

47 C.F.R. § 80.217