Odd flash 5x Transmitter issue

flyingtrain · Oct 25, 2009, 08:03 AM

I spent a few days figuring out how to set up flaperons on a new airplane using my Flash 5x. It looked beautiful when I packed up the night before. When I arrived at the field I put my airplane together and tested the set up again. It all looked perfect. I grabbed my trainer and asked him to look everything over and to take it on it's maiden flight. One of the first things he did is check the controls. We did a range check and all looked great. Then he extended the antenna and the plane stopped responding.

we collapsed the antenna and the plane responded beautifully again.

We repeated the process several times with, at best, spotty results.

With loosening and retightening the antenna we would sometimes get the plane to respond. Needless to say, we packed up that plane and the Flash 5x transmitter with plans to send the transmitter in.

Have anybody ever heard of anything like this happening before?

I have spent the last two hours searching these forums with no success.

Thank you for your time and attention.

A.T. · Oct 25, 2009, 03:32 PM

Quote:

Originally Posted by flyingtrain

I spent a few days figuring out how to set up flaperons on a new airplane using my Flash 5x. It looked beautiful when I packed up the night before. When I arrived at the field I put my airplane together and tested the set up again. It all looked perfect. I grabbed my trainer and asked him to look everything over and to take it on it's maiden flight. One of the first things he did is check the controls. We did a range check and all looked great. Then he extended the antenna and the plane stopped responding.

we collapsed the antenna and the plane responded beautifully again.

We repeated the process several times with, at best, spotty results.

With loosening and retightening the antenna we would sometimes get the plane to respond. Needless to say, we packed up that plane and the Flash 5x transmitter with plans to send the transmitter in. Have anybody ever heard of anything like this happening before? I have spent the last two hours searching these forums with no success.

1. How long since the antenna was cleaned and continuance, both retracted and extended, tested?
Transmitter - Antenna cleaning
2. If battery recently charged, was the TX antenna held at least 2m away from the model or over top of and swampinmg the RX if also with high voltage battery?
See also sub Sections
"Transmitter - FAQ - Additions, Adjustments, Mode Change, Clonepacs & Repairs. "
"Range check and Range problem solving"
"Glitches & Jitter in Receiver, Servo & ESC - causes and cures" under
"Radio Systems, Accessories, Alterations and FAQ" at:
Alan's Hobby, Model & RC FAQ Web Links
otherwise Hitec service information
Regards
Alan T.

flyingtrain · Oct 26, 2009, 03:47 PM

If I understand this correctly, the fact that I was standing with the transmitter within 2 meters of the receiver antenna and that I was using a more powerful receiver battery (6 Volt rather than standard 4.8 Volt) may have caused the receiver to overload and not respond to the transmitter signal. Secondly, the antenna may be in need of cleaning.

In case I understand this correctly I will clean the mast today with Isopropyl alcohol and test again with the transmitter at least 7 feet from the receiver.

If this is not a correct understanding please post clarification.

BRENDAN LUGO · Oct 27, 2009, 10:29 AM

I've never come across this issue before so it's hard to say what is causing it. The symptoms are somewhat baffling.

If you were to put pressure on the crystal (on the Tx) does this affect your signal/control to the model?
I think the best thing to do is to send in the radio with the receiver to be checked out together.

Oct 25, 2009, 08:03 AM	#1
flyingtrain Registered User Join Date: Oct 2009 Posts: 3	Odd flash 5x Transmitter issue I spent a few days figuring out how to set up flaperons on a new airplane using my Flash 5x. It looked beautiful when I packed up the night before. When I arrived at the field I put my airplane together and tested the set up again. It all looked perfect. I grabbed my trainer and asked him to look everything over and to take it on it's maiden flight. One of the first things he did is check the controls. We did a range check and all looked great. Then he extended the antenna and the plane stopped responding. we collapsed the antenna and the plane responded beautifully again. We repeated the process several times with, at best, spotty results. With loosening and retightening the antenna we would sometimes get the plane to respond. Needless to say, we packed up that plane and the Flash 5x transmitter with plans to send the transmitter in. Have anybody ever heard of anything like this happening before? I have spent the last two hours searching these forums with no success. Thank you for your time and attention.

Oct 26, 2009, 03:47 PM	#3
flyingtrain Registered User Join Date: Oct 2009 Posts: 3	Odd Transmitter issue response Clarification Request If I understand this correctly, the fact that I was standing with the transmitter within 2 meters of the receiver antenna and that I was using a more powerful receiver battery (6 Volt rather than standard 4.8 Volt) may have caused the receiver to overload and not respond to the transmitter signal. Secondly, the antenna may be in need of cleaning. In case I understand this correctly I will clean the mast today with Isopropyl alcohol and test again with the transmitter at least 7 feet from the receiver. If this is not a correct understanding please post clarification.

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Oct 27, 2009, 10:29 AM	#4
BRENDAN LUGO Hitec service Join Date: Nov 2004 Location: San Diego Posts: 283	I've never come across this issue before so it's hard to say what is causing it. The symptoms are somewhat baffling. If you were to put pressure on the crystal (on the Tx) does this affect your signal/control to the model? I think the best thing to do is to send in the radio with the receiver to be checked out together.