- Posts: 277
noisy and fluctuating analog Inputs and TX Voltage
07 Apr 2016 22:06 - 08 Apr 2016 09:15 #46075
by Wene001
Replied by Wene001 on topic noisy and fluctuating analog Inputs and TX Voltage
thanks for helping an electronic newbie, midelic
meanwhile i-ve used a coil that looks similar to the 350uH Coil in the video from the LC-Filter Link that you postet @ the FrskyX Thread.(Diode in series)
And 4pc parallel 2200uF Low ESR Elekrtolyt Caps from an motherboard ....looks good so far....stable voltage on TX Side.
slow fluctuating 0.1V on Module Side
i`ve calculated with your links calculator and it gives to low frequency in this combination
But of coarse i dont know the uH of my coil for sure
Should i buy this one, and use it with one Cap (2200uF), then im near the right frequency.
The coil i used looks like this
Puuh... hard for me
@Alexandro: which LC-Filter do you have ordered
meanwhile i-ve used a coil that looks similar to the 350uH Coil in the video from the LC-Filter Link that you postet @ the FrskyX Thread.(Diode in series)
And 4pc parallel 2200uF Low ESR Elekrtolyt Caps from an motherboard ....looks good so far....stable voltage on TX Side.
slow fluctuating 0.1V on Module Side
i`ve calculated with your links calculator and it gives to low frequency in this combination
But of coarse i dont know the uH of my coil for sure
Should i buy this one, and use it with one Cap (2200uF), then im near the right frequency.
The coil i used looks like this
Puuh... hard for me
@Alexandro: which LC-Filter do you have ordered
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- noisy and fluctuating analog Inputs and TX Voltage