Iīm not a poor man, but not a rich either, just kidding. I think this solution would be one of the last Iīd try, theorycally this has to be installated antenna to one side of the wing and ground plane on the other side, might be a bit hard to achieve it on telemaster
It would be interesting to see what happens after you add the counterpoise element (poor man's dipole in your situation).
Since you've added toroids to the servo wires and the problem seemed to change a little, then that suggests that part of the problem is RFI coupled through, or radiating from, the servo wiring. A more aggressive solution would involve adding 10uH chokes on each of the servos' three wires, plus retain the toroids.
Do u think some cap would be needed too?
Yes, I post some pics at the end of this topic, you could see some of the ferrites Iīm using (4 different kinds)
BTW, did you happen to get *at least* a half-dozen tight wraps (more is better) on the toriods, like the photo at the bottom of this page?: http://www.dpcav.com...o...=255&page=1.
Most of your installation is a mystery to me, so it is hard to offer any particular advice. For example, R/C receiver's vary in their performance when they confront power supply and EMI/RFI noise. Also, the servos impact this too. For example, modern digital servos have very low impedance FET bridge amps and faster motor updates. This increases the noise floor in a R/C installation due to their higher instantaneous peak currents and faster rise times. That's not to say that legacy "analog" servos are free of this issue, but the point is that the new digital stuff did not help out. Long story short, the issue with glitches is affected by how and what you install.
But your expert advice is great to have.
Iīve noticed that the glicher servo is the digital pan (hyperion) but this could be understandable because it has 2 times the travel the other servos have.
Easy solution but that would be my last option, before I want to have a CLEAN plane in PPM, if I donīt solve this, I would think to replace components, BTW, I think this components placement is perfect, the only bad thing is the long servo wires. Right now range is acceptable, and the ground test I did at the flying field was good, I had control over plane more than what manufactures advice (more than 80 steps), but itīs very annoying to have the pan servo glitching.
If you cannot resolve the problem (that would be unusal), and the twitches are minor and do not affect flight, and your ground range is not affected, then you may want to consider a high quality PCM Rx. But, don't do that if the existing problem involves a substantial range loss with a good quality PPM Rx. You have to be very careful with such band-aides or you will get what you asked for, but not what you wanted.
One last thought, why do you think glitches are gone when I touch the antenna? because human body absorbs rf noise?
Here are the different ferrite cores Iīm using + an inside pic of my installation. Youīll notice that Iīm using also a plastic
tubular ferrite, this one I bought from LHS. On these pics I donīt have all ferrites installed, but when I tried I had.