Hi I have a UGV running a standard Navio2, It ran brilliantly for a few weeks, and suddenly I am getting bad GPS signal health. It seems strange to me as I still have 20 satellites and a HDOP of 0.6, and the GPS status through Mission planner comes back as 4?
There is no raspberry pi camera as that is the usual suspect. I am running wifi as the communications and there is a separation of over a meter between GPS antenna and the 2.4Ghz antenna. I have a 433Mhz RC unit, but when its turned off I still get the bad GPS signal health.
I thought it might have been the Pi’s Wifi, so U switched to an external Wifi unit and turned off the pi’s wifi and Bluetooth.
I have tried to find out what the actual GPS signal health means, it cant be HDOP or fix related as I have a great HDOP and a very stable 3d position fix?
What does the actual GPS Signal health mean??? If I knew that maybe I could chase down the problem as it doesn’t appear to be interference related.