Signal drop from full strength to nothing

[Babadogood]

Hi guys my phanton 4pro is fluctuating from full strength signal to losing signal completely, back to full strength...have tried both frequencies doesn't seem to make a difference, was a few firmware behind so did some updates...but it hasn't made any difference ......thia starts happening from about 150m away +/-400ft

 

[Ripper7620]

Hi guys my phanton 4pro is fluctuating from full strength signal to losing signal completely, back to full strength...have tried both frequencies doesn't seem to make a difference, was a few firmware behind so did some updates...but it hasn't made any difference ......thia starts happening from about 150m away +/-400ft

Is it just the HD video feed dropping in and out, or the RC signal as well? My P4P does the same thing with the video feed, but the RC signal remains strong. In my case, it's mainly due to interference and the nature of Lightbridge.