Change History
Signal VHF 220/400 software version 1.21
as of October 27, 2026
Changes made from version 1.20 to 1.21:
- Fix audio not received on VHF channels WX1 to WX7 for USA and Canada.
Changes made from version 1.12 to 1.20:
- Fix VHF transmission issues on the L and F channels.
- Fix MMSI programming issues for some locations outside USA.
- Update to the latest VHF catalog.
- General improvements and bug fixes.
Changes made from version 1.11 to 1.12:
- Fix MFDs incorrectly detecting a Signal VHF and Remote Station across GMN and BlueNet.
Changes made from version 1.00 to 1.11:
- Fix GMN compatibility issue with Echomap displays.
- Numerous bug fixes.
Changes made from version to 1.00: