Code of Federal Regulations (alpha)

CFR /  Title 47  /  Part 80  /  Sec. 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: ------------------------------------------------------------------------

Field

intensity

Frequency of interfering emissions in

microvolts

per meter------------------------------------------------------------------------Below 30 MHz................................................ 0.130 to 100 MHz............................................... .3100 to 300 MHz.............................................. 1.0Over 300 MHz................................................ 3.0------------------------------------------------------------------------ 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: ------------------------------------------------------------------------

Power to

artificial

Frequency of interfering emissions antenna in

microwatts------------------------------------------------------------------------Below 30 MHz................................................ 40030 to 100 MHz............................................... 4,000100 to 300 MHz.............................................. 40,000Over 300 MHz................................................ 400,000------------------------------------------------------------------------