I have been an amateur radio operator for quite a long time and am starting to look into meshtastic and the Lilygo T-Deck. However, their site asks me which version I would want. The 915 megahertz, the 860 megahertz, or the 433 megahertz. As an amateur radio person, the 433 MHz would be the lowest frequency and therefore should be the longest range, but is that the most popular model? Would I be missing out on nodes if I were to use 433 MHz instead of 860 or 915?
Unless I am incorrect in my understanding of the regulations, anybody should be able to use the 433 MHz transmitter as long as the transmit power is less than 0.1 watts from part 95 of the FCC code.