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Highflight-RCU -> RE: Why YOU should never do business with Hitec. (7/2/2004 2:54:59 PM)
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Chevelle Bob, let's cut to the chase:
The airplanes we build and fly consist of LOT'S of various and technically advanced systems. On top of that, each builder does things in different ways, and usually, it's how these systems are installed by the builder that are the problem.
In those rare cases where the equipment fails, it is almost always as a result of builder induced damage (vibration not properly accounted for, metal on metal contact somewhere; stuff like that).
For the very rare remainder of cases where a defect in the original manufacture of the product accounts for the problem, well, tough.
Every, and I mean EVERY manufacturer of ANY and EVERY kind of product is going to have an "expected" failure rate. That's life.
So the bottom line, Bob, is that you are in the wrong hobby.
Perhaps you should try some other hobby where equipment used in that hobby NEVER fails like:
Skydiving - oops, no, bad idea. People have spent 2 grand on parachutes that failed. I wonder who sends the chute in for warranty repair?
Motorcycle Racing - ahh, nope. Been there, done that.
Photography - doggonit, no. I just had to send an 8 month old Hassleblad in for warranty work so that won't work for you either.
I think, Bob, you might want to get into collecting little figurines or something like that with no moving or electrical parts. And if you drop one, you can always send it back to the manufacturer and complain that it wasn't made strong enough.
Here's the deal: If you suspect the receiver is problematic, PUT IN ANOTHER RECEIVER FOR GOD'S SAKE! If that doesn't fix the problem, then look elswhere at your installation for possible glitching causes. If trying another receiver fixes the glitching, then don't send the other receiver back for work, just replace the crystal because the crystal is the most fragile thing in a receiver and is most often the cause of a problem.
If replacing the crystal doesn't fix the problem in that receiver, then just throw the d*** thing away. Why would you be so willing to risk a $1000 airplane on a questionable electronic part even IF it's been declared "good" by anyone?
By the way, in your photo of your engine; it looks like the engine mount is barely touching the metal washer of the engine mount. Any vibration between the two can cause RF. And I wasn't even looking hard to spot that. What else might you have "set up" to cause vibration induced, metal on/with metal RF?
Also, if you get glitching at 75 feet on your range check, YOU SHOULD NEVER HAVE FLOWN THE AIRPLANE!!!
That's terrible even if you'd had the antenna fully collapsed (you say it was 1/3rd extended), and if you had lost the aircraft after flying it with such a lousy range check, that would have been YOUR fault, not ANYONE ELSES.
With my EVO12, I range check out to WELL OVER 150 feet away and still have FULL control of my aircraft (antenna fully COLLAPSED) and only quit there because I get tired of walking.
How can you say that: "No glitching was experienced during the normal ground checks", and then one paragraph later state that you got range check glitching at 75 feet?
And let me also ask: It looks as if you have the entire fuselage behind the engine wrapped in metal. Is that right? You might want to take a look at ANYTHING that comes in contact with that, and also keep in mind that that area is serving as a large antenna in it's own right that could interfere with the receiver.
The more I look at your photos, the less I suspect that the receiver itself is the problem.
You also say the it's just the elevator that "bumps up". Change out the elevator servo and see what that does. Glitching on just one channel is not normally indicative of a receiver problem. In fact, other than the servo and the connectors between that servo and the receiver (try unplugging and replugging the connectors several time to promote better contact at the connectors), I'd wonder more if the transmitter might need tuning. It's interesting that you immediately suspect a NEW receiver as being the problem rather than a year old radio.
But then evidently, in the end, Hitec tells you that the receiver needed tuning. So there ya' go. Good warrantee work. Now what's your beef?
And even with the receiver back in the plane, you STILL appear to have some other things you might take a look at on your aircraft.
Highflight
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