Which of the following must be programmed into a D-STAR digital transceiver before transmitting?
Your call sign✓Respuesta correcta
Your output power
The codec type being used
All these choices are correct
Explicación
D-STAR sends the operator's call sign as part of every transmission and uses it for routing and identification, so the radio must be programmed with it before transmitting. Output power is a radio setting rather than programmed data, and the codec is fixed by the standard.