Radio range trouble with the turbine running.
When the turbine running I only get about 180-200 Meter radio range before it enter fail safe, with the TX antenna fully extend.
Turbine in use are Sonic 7000,with manual start.From Sim Jet.
Radio in use are..PCM10X And MX22 (JR)
Receiver in use are...MC20 And SMC-20 DS.
Have also try with only the “ECU” and battery (no switch) connected to the receiver with the same result.
Then take out the receiver battery pack and the wipe antenna, and move it so far away from the “ECU” and fuel pump that the throttle cable allowed. Still same result.
The plane are not new build this problem came up after 20 Flights. And happened on the second flight that day. It went in fail safe, the turbine shut down and I got the control back and make a dead stick landing.
Then I change Receiver(SPCM dual conversion),wipe antenna, and a new channel on the radio. Never use before. And I also got a different TX.Make range test on the ground with the antenna down everything look OK. Take of and in the first turn......Fail Safe. And the history repeat. This time it was on a different airfield, and I was the only one with problem.
I try with a new fuel pump but NO.
So something have start to make “noise” and weaken the incoming radio signal. So I only get this short range.
When the turbine is not running the range are not a problem.
I have been looking over the “ECU” after bad soldering, but look OK to me.
So now I desperately need some good advise.
Anyone?
Sorry for the bad English. School wasn't mine thing.

Roy Jimmy.