leherer/shuler hf problem (JR)

[diablotin]

Hello,
I made a lehrer/schuler cable between two JR 3810 transmitters. I used screened cable and two 3,5 mm stereo jacks.
However the cable does not function properly. It seems that the HF signal from the master transmitter influences the
slave. If i touch some metal parts from the slave transmitter the system works. If i stop touching it, the system fails.
To dangerous to try in flight! What dit i do wrong? Should i use mono jacks in stead of stereo jacks=
Any advise is welcom.
Danke!

[VRquaeler]

leherer/shuler hf problem (JR)

Hoi,

Please use the genuine cable from the manufacturer only. In my opinion we should always look for a safe way to do it in our hobby.

PS: May I ask where are you flying in NL?

[diablotin]

leherer/shuler hf problem (JR)

I solved the problem with some RF-chokes in the cable.
We are flying in Tiel (betuwse modelvlieg club) with an increasing numer of
enthousiastic heli pilots.
Regards,
Dick

[pchubi]

leherer/shuler hf problem (JR)

Hello,
I would have tried to remove the crystal of the master-TX (pupil) to avoid any RF at all.