Will the VHF radio continue to operate if the power supply fails or is turned off? (B923 / B924 only) 15 July 2025 08:49 Yes, without power to the B923 or B924 the VHF radio will continue to operate. Related articles proAIS2 040300.02.00.00 for Windows and macOS Why is my Connect-AIS app not working on Android? Why isn't my B900 Series transceiver detected when connecting via USB? B924 RED Declaration of Conformity Where can I download CONNECT-AIS?