Forum Discussion

want-a-be's avatar
want-a-be
Explorer
Jul 17, 2014

Inside Bay Cable and Satelite Hook Ups

Was at a RV park and when I hook up the cable I seen a spark, since then I have trouble with the hook up. Some times it works some times it don't. If I hook straight to TV it works fine.
Any ideas.
  • wa8yxm's avatar
    wa8yxm
    Explorer III
    Im thinking 13 to 18 volts, not 12.. But..

    There are several things that can cause a spark.. ONE is static electricity, You can build up a static charge on your RV, this should go away when you plug into the shore pedestal.

    Second: Do you have a sat receiver? IN many RV's with SAT TV receivers the park cable line has been Re-Tasked as the Sat-TV LNB line this normally carries 13-18 volts.. NOTE: you may have damaged your receiver.

    I am against this re-tasking for several reasons.. You just gave me another.

    Finally if you have the standard multi-function wall plate (Antenna connector, 12 volt outlet, Switch and LED) on the back side are usually 3 cables, one is to the roof and carries 12 volt (well battery voltage) one to the park cable inlet and the third (And optional 4th) to additional TV locations.

    Swap the 1 and 2 cables and you have battery voltage at the park cable and no operation of the rooftop antenna either.
  • our cable tv feed and external sat dish hookup are on the same panel, right next to each other.
    The sat hookup can have power on it and could make a spark when connected.
  • OP was hooking up cable from the CG. 12 volts shorted to the cable could cause a spark. Or worse could he have a bad ground on his coach and has just been lucky? That could be serious but not very likely. Might be worth checking some voltages on the frame to the power pole ground.
  • sat systems/tuners use low voltage to power the LNB on the dish...the back of the sat tuner is marked so that you don't plug the wrong cable into the TV.

    thats the only possibility that I'm aware of.
  • Kirk wrote:
    If you were connecting to cable there is no power there only an rf signal so there should be no spark. If it works intermittently you probably have a bad connection. Have you tried putting new ends on your cable or replacing it?


    Not knowing how the system is actually hooked up I wonder? Could the TV amplifier be shorting out against the shield ground on the TV cable or maybe the center conductor? And could it be intermittent because the amp is not always on? Just wondering!
  • If you were connecting to cable there is no power there only an rf signal so there should be no spark. If it works intermittently you probably have a bad connection. Have you tried putting new ends on your cable or replacing it?