How can I avoid SOLAR system Panel and MPPT controller frequency interference?

Joined
Jan 23, 2019
Messages
829
Location
Florida
How can I avoid SOLAR system Panel and MPPT controller frequency interference?

I was looking into adding a Renogy solar panel and mppt controller to my vehicle, and I read some review saying it was causing 7mhz interference to the HAM 40m bands.

Has anyone come across this interference and how is it mitigated?
 
Joined
Dec 27, 2017
Messages
225
Location
Grande Prairie, Alberta
so you read the review and are concerned it might affect you. Assuming you have limited sun there, a small panel, periodic use, you nay not need a charge controller. If in a sunny state, or a large panel, you will to prevent overcharging the battery.

The better quality charge controllers will have jumper options for charging type and selecting/deselecting PWM charging mode, which is likely where the noise comes from. perhaps cheaper panels alone only have PWM mode?
 
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