Re: My uBitx with 5v mod #ubitx

Joe Puma
 

Thanks, I have a few uses for this if it’s RF friendly like powering my MD-100 Mic and since it’s used in FPV applications it seems like it’s right for the job. 


Joe
KD2NFC 


On Mar 22, 2018, at 8:53 AM, Nigel G4ZAL <nigel@...> wrote:

I used this UBEC @ 5v
https://www.banggood.com/Hobbywing-3A-UBEC-5V-6V-Switch-Mode-BEC-For-RC-Models-p-915037.html?cur_warehouse=CN

It has a small metal screen around it and the ferrite on the 5v output lead plus capacitor on the uBitx board (where I cut the track and soldered the 5v lead onto) forms an adequate LC filter on the 5v DC.
I can't detect any 'noise' on Rx, but as yet haven't transmitted.

I use the UBEC on model aircraft with a video transmitter (FPV) and don't see any noise in the signal.
The video transmitters are quite susceptible to 'dirty' DC and often shows as 'herringbone' lines in the received video.

Nigel.

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