The PTT hold function has been activated. You can deactivate the PTT hold by performing the following steps:
1. Turn the transceiver off.
2. While holding the PTT key down, turn the power back on. The display will momentarily indicate P-HOLD OFF.
The microphone needs to be in the mic hanger for scanning to commence.
Please set the SQL level to 120 or more to prevent this, as the IC-400PRO SQL is very sensitive.
Please ensure that the Self ID or the vessel’s MMSI number has been entered/programmed into the Transceiver. GPS co-ordinates should now be displayed.
Please check and confirm that the speaker output control setting is turned ON: