ORIGINAL: Error401
Very nice writeup Lee, thank you.
I think Dave said that his Rx was an R2000 (?). I could be wrong , but it's pretty likely that the firmware differences are minute between the two.
I am considering (re)joining a club in my area, but the last time I flew at that site my 10x freaked out more than I have ever seen it freak. There is a large metal building about 150 yards (maybe a tad more) out from the flightline and parallel to it as well. If memory serves me, I was getting the most glitches when the model was 60-75% out to that building. Granted, I got the most glitches with my PPM Rx's, but I was getting some strange drift then lock then clear reactions from my S-PCM Rx in my AJ330. Would the building amplify the original signal before bouncing it back at the plane, and thus reproduce your findings, but with only one Tx?
Whitt
497494
Radio waves can be reflected and deflected... generally the bigger (lower frequency) the wavelength the more reflection, the smaller (higher frequency) the more it can be deflected. You must understand I am no expert; my knowledge has been gained by hands on experience with very little classroom electronic education.
As I stated in my basement test post.. Until I witnessed this strange servo reaction for the first time today…. I would have said this would have been impossible at a flying field or in my basement…. But now I’m not so sure about the open field situation.
Color me very skeptical about a single channel / firmware / fail-safe error of this nature happening in open field with transmitter(s) and aircraft relative positions being so far apart.....but then again something sure did push David's airplane quickly into the ground… that we all are very sure happened. I am not convinced yet as to what exactly caused his aircraft to do what it did.
My first impression was an elevator servo / glitch occurred on that pass when David flipped his smoke switch ON…but David would have already confirmed switch activation if that were the case... and we would have seen some smoke possibly....
Lee H. DeMary
AMA 36099