|Yesterday, 06:59 PM|
Hi Gree - hope I have your luck with uncontrolled landings!
seems like the two rx's are saying the same thing: unplug that servo
|Today, 03:53 AM|
Trecar, that RF wattmeter you got, is that for UHF band ?
and what is its range and resolution ?
if it is one of them 100 Watt ham radio types,
they will read alot too little in the 0.5 to 2Watt area,
most likely nothing is wrong with your TX unit.
Another way to measure if possible problems with output power :
measure the DC supply watt usage
you know the unit got about 33% efficiency,
so at 2W output setting in bind mode with ppm connected,
you need to feed it 6W on the supply, with 12V this is about 500mA
and so on.. if your unit draw correct DC power, I say the chance it is ok is very high.
the unit got a switchmode converter so it will draw the same Watts, no matter what voltage you feed it, doble the voltage, and you see halve the current.
you can feed it any voltage from 6-25 V
|Today, 03:59 AM|
you know we found a few digital servoes with error in the design of the motor driver
so they actually short the supply line for a few uS, very short pulse, this generate noise in the servo supply line, and is easy to see with scope, it is hard to handle for some weaker designed BEC, and also long and thinn servo supply wires make it all worse.
only use servo types you know are good, and scope test your voltages.
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