VHF compatibility with new Simplex channels

[Derek - Raymarine - Moderator]

Changes to Channels 19, 20, 78, and 79 Marine VHF Usage
Due to the increased need for marine VHF channels for commercial use, a recent ITU World Radio Conference authorised and developed a new channel plan for the following VHF marine radio frequencies.

Channels 19, 20, 78, and 79, which were duplex have now been split into 8 simplex channels numbered 1019, 2019, 1020, 2020, 1078, 2078, 1079, and 2079. This new channel plan took effect January 1, 2017.

All current Radios, RAY 50, RAY 60, RAY70 and any new radios will all have the new 8 Channel capability, the RAY260 will also have this capability, the RAY240 will not.

RAYFAQ#