Receivers radiate as little energy as practical and administrations ensure onboard electrical and electronic apparatus in ship stations and ship earth stations does not interfere with essential radio services (51.2, 51.3, 51.65, 51.66); ship equipment changes frequency and switches between transmission and reception quickly (51.4, 51.5); broadcasting by ship stations at sea is prohibited (51.5A); ships carry the Appendix 16 documents and a frequency-measuring device where the transmitter cannot hold the Appendix 2 tolerance (51.6, 51.7); ships with DSC, narrow-band direct printing, radiotelephony or NAVDAT equipment must be able to use the specified frequencies in each band, including 2 187.5 kHz and 156.525 MHz DSC, 2 182 kHz and 156.8, 156.3 and 156.65 MHz radiotelephony (Section I); aircraft communicating with maritime stations observe altitude, power and channel limits (51.73 to 51.80).
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.