Under normal circumstances, pressing any key will result in a
confirmation tone.
When the radio successfully executes the command
associated with the key, it responds with a "B" response.
In case the radio fails to execute a key command, it responds
with a "DU" response.
The "Cancel" key is designed to return the radio to its initial
state from various states.
6. Operation Description
6.1 Power On
Connect the machine to the boat's power supply and ensure
there are no errors. Long-press the power/volume knob to power
on the machine, indicated by entry into the main interface. In case
of abnormal power disconnection, the machine will automatically
power on again.
6.2 Switching Channel
1> Use the rotary encoder to switch channels.
2> Use the hand-mic plus/minus keys to increment or
decrement channels.
3> Use the hand-mic numeric keys to directly set the
desired channel.