Have you EVER connect to AIR module from "electrical" side? Maybe there's problem in electrical connection between modem and APM?
Why do the downgrade to 1.7 instead of upgrading to 1.9?
The baud rate needs to be 57000. Screen shots show 115000
David R. Boulanger
i have similar issues like i read in this thread.
I have both firmware in radios, the status led is solid green, i power up the ardupilot 2.6 with power module, i select the correct baud rate and com port (57600) but i cannot connecting via mission planner. Some times and i mean "some" connected but the communication is lost after few seconds. here is the print screen of misssion planner..
Are you sure you have proper electrical connection between APM and AIR radio?
the problem was in the wire connecting the apm with the radio, i figured that our and now its working ok.... thanks for your useful suggestions and help
i'm working on APM2.8,but i felt it difficult while doing compass calibration using USB. So, I bought a telemetry radio but the air radio isn't blinking when socketed to APM.Just to check whether the radio is working or not I tried it on the GPS port and then it started to blink.
so,what should it be,
is the APM faulty or should i powerup the APM directly
Pls help me out