HB3YAQLucerne
Simplex
In typical simplex voice operation, stations take turns transmitting and receiving on the same frequency. Only one station can speak intelligibly at a time.
Also found under: Simplex · Direktverkehr · Direct Mode
A concrete example
A simplex hotspot uses the same transmit and receive frequency for its local radio access.
What to keep in mind
Here simplex describes the radio access; an internet connection may still exist behind it.
Further reference
Original explanation based on the technical documentation. Reviewed on 15 October 2026.
MMDVM · Host project documentation ↗