If you feel you ruled out the power supply, then the box is the problem. It really is that simple. Run the FTA receiver off of the 12 volt battery and see if it helps. Best way to rule out the power supply.
Cut the power cord? Then I'm left with zilch afterwards. Better to use the battery box I built and the 12VDC adapters I have then I won\t have to destroy anything unnecessarily.Done. same result. Static!Get your dvom out and using the original PS, check the polarity center positive or negative. cut the cord and wire it to your battery and see what happens. And it does not matter if you have a 10 million amp battery, the receiver will only use what it needs.
There is absolutely no reason to destroy a power supply if you have alternative cables and adapters designed for use with 12VDC power supply. I think you mean well but your suggesstion destroys property that does't need to be destroyed.Adapters, back to the same stuff. Why would you not solder and heat shrink the wires back if it did not help. Besides you already stated you have others.
LOL all I have done was state that I tried the suggestions others requested but thanks for leaving.I am out of this conversation. You can not help somebody that does not want help. I am sensing a troll here.
Please go away! Your rude!Maybe I should talk in slow motion. You won't destroy the power supply. If you use a DVOM you can tell if the center is positive or negative, cut the wire in the middle and wire to your battery so the center pin of the connector is the same as before cutting. run jumper wires or whatever to see if it helps running off the battery. If not solder and heat shrink the wires back as they were. If you have a HAM license and can not do simple soldering you have more issues than I can help with. You are the one that asked a question, we tried to help. If this is really happening, you just want to take some of the advice you have been given by me and others. I am still intrigued of how you will destroy a wall wart by cutting the wires. Well as a disclaimer maybe I should say unplug it first.I am guessing none of your coaxs are grounded either to your house ground rod.
I'm really not interested in working with or listening to you.Look I or nobody else is being rude to you, believe it or not we are trying to help. You already had one help full person check out of the conversation. But again this has a little rocket science in it. You have to test different configurations to see were the problem lies. I am not being rude or mean, if you have this problem you have to pin it down by trial and error. Get your coaxs bonded to your house ground, you are lucky you have a battery system. Hook the Ham radio to it and see what happens. I am not rude, just logical.