Signal loss

Dear All,
Sorry for writing in English due to my bad German grammer. Your reply can be in German language as I can read and undersatand German.
I have two old Jeti receivers:
1. Duplex R8 dated 1/09
2. Duplex R8 2HEX dated 111/12
Both receivers are functioning OK - But I get signal loss when range check at only 5 meters.
I have used these receivers without any problems last year but now very low signal.
I will not be using these receivers any more, my purpose of writing is to learn what can be the problem.
It is no use sending them to Jeti because they do not answer any more.
So if you have any suggestions, then I will be very pleased to hear from you..
Thank you and best regards
P.K.Bose

Hi Bose!

Alo ssorry - for my bad english

Some ideas for your range problem:
- Once, i had a broken inner anntenna cable, that was not visible from outside because the isolation was o.k.
- Also it maybe possible tht there is a shortage between outer and inner antenna cable.
- My last idea:because the receivers are old so have been used in several models (?): have a look at the solder points of both antennas on the pcb.

Most problems happen at the position where the antennas leave the receivers housing, especially if bended often or due to vibrations (Heli!) when antennas are not taped to the model.

Best regards...

Frank

Thanks for your input.
I sent the receivers to Jeti and they Solvej the problem by sending two new receivers / fantastic service from Jeti!
Bose