Had similiar results (Blue SDR) and we where flying the test platform at 150 ft AGL, just point to point, no other radios. Believe we got to 16K before we terminated the test due to video dropping out.
From what I was just told, the radio just switches to another frequency band in the S band to try and get around jamming.
But if the entire S band is jammed, your fucked
My question would be for anybody running it in a contested/jammed environment, how did it perform?
- Renex O