Troubleshooting ContentsTroubleshootingPower up troubleshootingProblems at power up and their possible causes and solutions are described here.Audio troubleshooting (transmission / reception)Problems with your VHF radio and their possible causes and solutions are described below:GNSS (GPS) troubleshootingProblems with the GNSS (GPS) and their possible causes and solutions are described below.DSC troubleshootingAIS troubleshooting (Ray70 / 73 / 91 only)Wired handset troubleshootingWireless troubleshooting (Ray63 / 73 / 90 / 91 only)Before troubleshooting problems with your wireless connection, ensure that you have followed the Wireless location requirements guidance provided in the relevant installation instructions and performed a power cycle/reboot of the devices you are experiencing problems with.Previous topic: MaintenanceNext topic: Technical support