Radio lose

[Hazaimeh]

Hi to all
I have a problem with radio on R44 aircraft.
I'm using Garmin GMA 350H audio control, Garmin GTX 225B VHF, garmin GTN 750 imbedded VHF.
after 15-45 min I hear sever noise then I lose the transmit on all com.
When reset the audio panel C.B radio back OK.
But the problem is repeated every sortie.

how to figure out the problem?

 

[EdFred]

Any portable electronic devices in the aircraft? I had an issue with a portable ADS-B in receiver causing a similar issue.

 

[Hazaimeh]

Any portable electronic devices in the aircraft? I had an issue with a portable ADS-B in receiver causing a similar issue.

No there's no any portable devices on aircraft