gtn750

The card reader on my 13 year old GTN 750 is giving me problems. Over the past year it's been increasingly difficult removing and inserting the SD card, and even when inserted, many times it can't read the data. To me it feels like the contacts on the reader are bent based on the resistance that...

Anyone know what this yellow ring on the 750 means? The only reference in the manual I could find was a TFR, but it also seems to include a time-indicator. Maybe the TFR starts in one minute? Any ideas?

Looking at an upgrade from legacy equipment in a corporate a/c that fly's throughout North America. Our options are for a Dual GTN 750 setup or a GTN 750/650 pairing. I'd jump with both feet on the dual 750 install but there is a 'real estate' crunch. It can be made to work w/ some changes to...