How do I transmit a message on the RT628?
Press and hold the PTT (Push to Talk) button to transmit. Hold the device vertically with the microphone about 5 cm from your mouth and speak at a normal volume. The transmit icon (▶) will appear on the LCD. Release the PTT button when finished.
Have a follow-up question?
AI-powered answers from the official manual. Verify critical info.
Common questions