I just wanted to make sure there was no confusion here. The SkyGaurdTWX GPS antenna will actually blink when it has a GPS signal lock. It is solid, when initializing or not locked on. So, here is a basic outline:
- GPS antenna light "Solid" - no GPS lock
- GPS antenna light "Blinking" - GPS has position lock.
You can also reference the "Fix Quality" instrument on the iFly. It will show an ADS-B / Green Bar if the SkyGaurdTWX has a GPS lock. I hope this helps.