FM Radio Static while using generator

horton333 wrote:

jrkowalski wrote:
When I run my portable generator while using my FM Stereo it produces a lot of static. I was careful to purchase a generator that produces power <5% THD so as to avoid this. Is there something I can do to prevent the static?

I'm assuming that this is an inverter type generator. It's very unlikely the problem is coming to through the power lines, more likely it's radiated from the switching electronics and so probably not much simple that could be done.

You can confirm if its coming to through the A.C. power line by borrowing a good powerline filter like sold for audio equipment. If that makes no difference when added then the problem is radiated.

Some tin foil or a metal plate connected to the ground put near the electronics of the generator as a shield may help, but it's a long shot.

Static the OP is talking about is most likely not due to "inverter" or even a standard non inverter generator head but due to the engines ignition system.

For any RFI you need to isolate the SOURCE of the noise by moving the SOURCE further away from the radio device.

In other words, don't park the generator close to the RV or on the side of the radio.

Most ignition noise will be more noticeable with WEAK stations, try a stronger station.. AM is more susceptible to RFI noise than FM, if listening to AM not much is going to help, just the nature of the beast.

Typically ignition noise in vehicles are suppressed by using resistor plugs and plug wires.. Not much options for a generator, not like you are going to change the plug wires (coil and wire are molded together) and not a lot of resistor plugs available for small engines..