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Old Oct 31, 2011, 08:45 PM
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Futaba 10C with Spektrum Voltage Dance

Does anyone out there have a 10C with Spektrum module in it and notice the voltage "dances"?

Mine will show a voltage and then very quickly change back and forth to .1v up or down from there, very fast.

However, if I hold the range check button on the module it stays solid.

Anyone else notice this?
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Old Oct 31, 2011, 08:59 PM
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United States, TX, Round Rock
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My 9C does it too and it is normal. It is the way the Spektrum module draws power in normal mode. In range check mode the output power is reduced and as a result the current draw also decreases so the battery voltage stays constant.
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Old Oct 31, 2011, 09:56 PM
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Good to know, thank you.
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Old Nov 01, 2011, 07:51 AM
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United States, FL, Miami
Joined Aug 2009
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If you want to get rid of the voltage dance on your DM8 module, all you need to do is hook up a capacitor to the positive and negative pins of the module (I believe pin 2 = positive and 4 = negative) How small of a cap ? I dont know. I used an exaggeration of a capacitor (1000uf) to initially test it out and will do a cleaner job whenever I get the time for that.

I believe Andy Kunz stated that the module cycles on and off many times a second which is what freaks the Futaba voltimeter out.



And yes, a caveman could have done a better looking job.
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