From the day we got our 15 OR we have had a problem with cable TV through the coach. It has been in a couple of times to trouble shoot it and the guys at the dealership finally figured out the issue. The 120/12 volt converter is sending interference through the coax for the cable!! If you throw the breaker for the converter the picture gets crystal clear. Does this sound like a faulty converter?? Has anyone else seen this issue Chris

Is the battery connected? It should filter much of the noise out.

He said cable coax so no voltage should be on it. I would say RF from converter. May be bad converter .

I had an issue once with a circuit running my newly installed Shurflo roof vent fan which made my TV picture scratchy. The manufacturer sent me a diode to put in the positive lead wire and that resolved my issue. They also told me I could reconfigure one of my 12V circuits and switch with a 'filtered' circuit. Apparently some of the 12V circuits are filtered while others are not. Since the diode installation resolved my problem I didn't switch circuits. I was told that the radio and TV booster circuits were filtered while light circuits etc are not. Might be worth looking into...

Is the cable connected wrong at the antenna booster?

converter interference | Good Sam Community

ScottG
Nomad
Aug 24, 2016
Is the battery connected? It should filter much of the noise out.
csamayfield55x
Explorer
Aug 24, 2016
yep battery connected

Chris
charwan
Explorer
Aug 24, 2016
He said cable coax so no voltage should be on it. I would say RF from converter. May be bad converter .
You_can_t_take_
Explorer
Aug 25, 2016
I had an issue once with a circuit running my newly installed Shurflo roof vent fan which made my TV picture scratchy. The manufacturer sent me a diode to put in the positive lead wire and that resolved my issue. They also told me I could reconfigure one of my 12V circuits and switch with a 'filtered' circuit. Apparently some of the 12V circuits are filtered while others are not. Since the diode installation resolved my problem I didn't switch circuits. I was told that the radio and TV booster circuits were filtered while light circuits etc are not. Might be worth looking into...
beemerphile1
Explorer
Aug 25, 2016
Is the cable connected wrong at the antenna booster?
Dr_Holiday
Explorer
Aug 25, 2016
The FCC required all manufactures to insure all their electrical appliances not send out "Harmful RF". Harmful RF being any RF that interferes with other appliances. I'd suggest they replace the inverter.

Also look at the coax cable, it shielded and should shield against most RF noise so theirs a break in the shield or the noise is really bad. Try running the inverter and turning on a AM radio can you get any signal to the radio?
csamayfield55x
Explorer
Aug 25, 2016
Got the trailer back today. They said they were looking for a rf filter for the wires because the factory ran the coax took close to the converter. Not sure if I buy that answer but you have to play the game. This ONLY affects the cable in. No issue with over the air antenna

Chris
csamayfield55x
Explorer
Aug 25, 2016
Double post
time2roll
Nomad
Aug 25, 2016
Can the dealer re-route the cable through the roof?
Is the converter chassis grounded?
Is the coax wrapped up in some other 120v or 12v cabling?
I would at least try a different brand or replacement converter.
beemerphile1
Explorer
Aug 25, 2016
csamayfield55 wrote:
Got the trailer back today. They said they were looking for a rf filter for the wires because the factory ran the coax took close to the converter. Not sure if I buy that answer but you have to play the game. This ONLY affects the cable in. No issue with over the air antenna

Chris

Easy test would be to run a temporary coax elsewhere.