Assuming the OP has the wireless Smart Controller then there are some possibilities for random disconnection. Trouble shooting steps below assume that it used to work perfectly and now it has changed which is what the OP suggested.
1) The wireless base station is powered by the Seatalk
network. It can be installed by discrete wiring
or via the standard Seatalk
connector. Either way, if the base station loses power momentarily then it will disconnect from the handheld controller and take some time to reconnect. Check the Seatalk cable connecting the base station to the network for loose wires or plug
2) Sometimes the radio
signal from the base station can be blocked by metal or even thick fiberglass
. Has anything been changed about the installation
such as new equipment
to the boat itself? If so, there may be something blocking the radio
signal or merely weakens the signal.
3) The radio frequency used by the wireless system is similar to that used by cordless phones (not cell phones) and those annoying flying drones. It's possible some other radio signal nearby is causing interference
. To diagnose this idea requires a bit more information about when and where the disconnection happens.
4) Lastly the handheld unit is battery
powered. The battery
may be aged and reducing the range.