I'm reading the Icom IC-51E PLUS2 manual and it says it supports the following modes:
What is FM-N? I'm new to amateur radio and never heard of it before. It's not listed on Wikipedia either.
FM-N stands for FM narrow band.This corresponds to a 2.5 kHz deviation. FM corresponds to a 5 kHz deviation. Most repeaters are still 5 kHz although with spectrum crowding, we will see more 2.5 kHz repeaters to allow more repeaters to be located in the same frequency allocation. This mirrors what is happening in the commercial 2 way market.