"Eric Desrochers" <dero72@mac.com> wrote in message
news:1hukrij.4a7xq19g1am2N%dero72@mac.com...
>I would never have guessed it! I first checked the connection on the
> receiver (inside the house obviously!) and just while I was unscrewing
> it, the picture came back! For some reasons, the connection would break
> if I screw the cable too tight!
>
> I work in audiovisual and stage show sound, lighting and video
> projection so I regularly have to troubleshoot such bugs in complex
> systems. The connector inside the house would have been my last guess
> since it's protected from the elements and not accessible to people and
> pets to un-set it.
>
> Besides, I measured 19 volts DC on the antenna connector.
>
> Thanks all for the suggestions!
>
> --

Glad to see you found it without having to freeze your ***'s off.
You may just have a broken wire or loose coax connector, but check to see if
the connector on the IRD may be broken loose (bad solder joint) inside the
RF cage as well.
Mind you if worse comes to worse, a 3100 can be replaced quite cheaply
($20-$40) .