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Radio check rudder movement

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Old 12-05-2005, 08:22 PM
  #1  
skateflyer
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Default Radio check rudder movement


Hi, I'm looking for an explanation/help regarding the following situation:

Equipment: JR6102 TX, R700 RX, futaba 3010 servos, 4cell 1,100 mamp battery, the rx antenna is run outside and under the fuselage.

While moving the radio to different locations around the airframe the rudder and no other control surface will make huge movements. This happens consistently when the radio is passed through the same area. If I move the RX antenna the location which activates the rudder moves but doesn't go away. I can actually move the radio back and forth and move the rudder a good 2" in each direction.

So far:
I've changed the servo, no change.
Changed the RX to a new JR Sport 600, no change.
Twisted all the servo leads, no change.

I'm thinking this must be a radio problem????? [&o]
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Old 12-05-2005, 09:42 PM
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DMcQuinn
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Default RE: Radio check rudder movement

sometimes the radio systems behave strangely when the transmitter is very close to the receiver antenna. Does the behavior happen when the transmitter is one or two feet away? Or when is 5 - 10 feet away? If you are only one foot away, try moving a few steps away. if it happens a few feet away, you have a problem. If it only happens when very close, then this may be OK. A transmitter that is only inches away from the receiver can swamp the receiver with too much energy.

the transmitter of course is suspect becasue you have changed the receiver already.
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Old 12-05-2005, 11:32 PM
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js3
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Default RE: Radio check rudder movement

Try unsecuring the RX antenna and just letting it lie on the bench (as a test). Now repeat the movement of your TX around the plane and see if the rudder still wigs out. Try a couple of different paths for the RX antenna.
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