[Carl n Susan]

I have a couple of small plug-in inverters but I have never used them to run a TV. They probably are too small anyway (175 watt). My inverter is hardwired which is pretty much the same 12V connection but adds a real Ground cable from the inverter to the chassis. I am at the limit of my knowledge at this point. I suspect the hum is due to a lack of a ground but I am unaware of how to do that with a portable unit like yours. A PSW unit might be worth a trial if you can get one that is returnable in case it doesn't solve the problem.

I do sympathize with your need. Quartzsite drove my decision to install an inverter for evening entertainment without a generator. But the inverter is just the first step. The TV draw will quickly delete the capacity of a single, stock, inexpensive (aka dealer installed) 12V battery. Multiple batteries will help a lot. On the other hand, generator hours at Quartzsite generally run until 10 PM although, if you have a quiet genny, your neighbors may not object to even later.

Originally Posted by h2ojocky

Carl, how big is your inverter and do you only have it hooked up to the devices you mentioned? I have been contemplating installing an inverter.

I am using a 2K watt inverter which is actually more than I need. My 3700 has a 110V circuit dedicated to the Entertainment Center which powers all the outlets for the various devices including the outlet on the back wall. I rewired that circuit to a DPDT switch so I can select the power source (Shore/Genny or Inverter).