Originally Posted by
A and C
I have a question for those with early Garmin units.
Are you unable to save 8.33 channels in your communications radio memory ?
Can you retrieve 8.33 channels from the airport section of the airport data base and move them to the comm standby window ?
Garmin is quite clear on it:
Thank you for contacting Garmin Support regarding the issues with your device. Unfortunately, GNS is not able to store 8.33 frequencies in the Navigation Database. I need to explain briefly some technical details regarding Navigation databases to help you understand the root cause of the problem. The original Navigation database format for the GNS series was designed in early 2000 ‘s when 8.33 frequencies were not being used in aviation, nor were there any plans to do so in future. This is why the format of the Navigation database does not allow to code 8.33 frequencies. This could only be achieved by designing new format of the Navigation Database. We call it ADB1 for the old format and ADB2 for the new format. ADB2 increases amount of information associated to each airfield which allows to code 8.33 frequencies as well as additional approaches and more. Sadly, GNS production has been discontinued years before the ADB2 format was created and therefore currently available and certified GNS firmware is not compatible with it. Garmin is monitoring the impact that this is having on our customers, but due to the discontinuation of this product and severity of the firmware changes required, it is unlikely that new software will be released to resolve the issue. Please accept our apologies for the inconvenience caused.