47 C.F.R. § 80.961 Radiotelephone receiver.
Title 47 - Telecommunication
(a) The receiver must be capable of reception of G3E emission on the required frequencies. (b) The receiver must have a sensitivity of at least 2 microvolts across 50 ohms for a 20 decibel signal-to-noise ratio.
Title 47: Telecommunication
PART 80—STATIONS IN THE MARITIME SERVICES
Subpart T—Radiotelephone Installation Required for Vessels on the Great Lakes
§ 80.961 Radiotelephone receiver.