Hum when inverter is running.

You can install a inline noise filter for 25$, but you need to actually run the wires direct to the battery and frame to get the best results.

 

Normally a cb shop will charge you 50-75$ installed, or you can buy your own for 10-20$ and install it yourself.
Just google CB Noise Filter, you'll see a variety of them.
I bought one due to the alternator whine on a W900 I drove years ago, didn't completely make it go away but reduced it by 80-90%.

 

Tell her to hang on a bit

 

Dont get offended but its likely just a trk stop inverter..They are noisey,they produce a dirty signal (sine wave)..If you install a noise filter its also decreaseing incomming signal....
Sell it and hear to an rv shop for something of quality..Do a lil studying 1st..
OORRRRRRR
Turn one off with other running..
I have same issue with my hid highbeams,gps charger..

 

Depends on the noise filter, if it's installed in the power/ground it only reduces background electrical noise. Only the ones that connect into the coax reduce incoming transmission signal.

 

Well then your gonna have to turn one off....Just cause its one from volvo doesnt make it any better than a trk stop/auto store inverter..

 

Volvo factory installs are Xantrex inverters.

 

Well I don't know if a filter would help, no one seems to be asking the right questions.

SO I will.

Let's start with this question - did this start out of the blue or you just get into this truck?

Then the next question is describe what you mean by hum?

Like is it like a 60 hz sound (low hum) or noise like static?

Then the next question is this - did you disconnect the coax to see if the sound goes away?

AND another question is this - do you have anything hooked up to the inverter when you turn it on and the noise appears or is everything disconnected and it still happens?