Hi everybody;
It's all coming together for me now - after three crashes, I think I can blame the transmitter!
It started last week with the Rare Bear - It was flying beautifully around the schoolyard. I took it pretty far out for a long run and then, bam, lost the radio signal - it rolled upside down and powered in.
Since the Bear was a used, relatively recent plane, I chalked it up to my inexpierience with a single conversion GWS receiver, and getting it too far out.
So, I took that plane home and put it on the bench for repairs. This past weekend, I took my son out to the park with some planes, including a Piper, run by the same radio. We launched it, and it glitched almost immediately out of my hand. Another partially-powered dive into Earth, and broke the motor loose. Trying to determine what the problem was, I kept the plane powered and watched the servos. They would go wild for bit, all speeds, all directions, and then quiet down for a little while, even with the radio, fully extended antenna, right next to the plane.
We were at a new location, so I figured, "interference". Plus, this plane's been around the block a few times. Maybe it was just its time!
Anyway, I had the Bear repaired by this time. Took it to the tried-and-true park, launched, and was having a pretty good flight (despite being badly out of trim from the first crash), with only an occaisional hiccup, when again, bam, no radio control whatsoever. It fell in from high-altitude, unpowered.
Again, doing problem determination back at the car, servos were going nuts, prop was twitching. Now I'm thinking, "it's not the planes. It's the radio". It made no difference if the radio was on or off. It was almost as if the signal would fade in and out.
This is the Hitec Radio that I had dropped on it's antenna, cracking the circuit board, and re-soldered back together (I know, I know, but just listen to the story :^). I did that when it was almost brand-new. It's been working that way for about a year, nearly daily (I love to fly).
I'd like not to have any more crashes! I can replace the radio, no problem, but it's curious to me that it would work just fine for so long, and then start working so badly. Is there anyway to look at its signal and confirm that it is indeed the source of the problem? I have an O-scope that seems to be setup to show radio signals, with a co-ax connector on the front. I'll try hooking it up myself to an antenna and seeing what I get (maybe it will be obvious?) but if anyone can tell me what I should be looking for, it would be greatly appreciated!
Hey, thanks! Dan.
Anyway, the boy's taken an interest in learning on the buddy port, so I reckon I'll get another Hitec Laser 4 (my other radio) and we'll fly together when I get this all straightened out!