[mythtv-users] losing audio/video sync when transcoding: a workaround
R. G. Newbury
newbury at mandamus.org
Mon Sep 18 15:40:46 UTC 2006
Peter Schachte wrote:
> Hi,
> > I hope this helps. Now, does anyone have any idea how to stop the
> garage door opener from generating interference? I've done some
> googling, but can't find any suggestions short of replacing all my
> antenna wiring.
I presume that your mythbox is physically reasonably close to your
garage, as in, on the other side of the garage wall.
Do you know if it is the remote transmitter or the actual door opener
which is the culprit? Hard to believe that the remote would produce a 20
second burst of RF, but even harder to understand how/why the door
opener unit would do so. Probably the power control board of the opener
unit. You may want to check that the length of the interference is
exactly the same period that the opener is running. Then:
1) Quick fix/check: if you happen to have a metallized shopping bag
handy, or don't mine using lots of cooking foil, just wrap the back of
whole darn thing in foil except for the opener antenna and ground the
foil to the unit. Hopefully, the front points away from your mythbox.
2) Yell at the manufacturer's customer service people, since it should
NOT be doing that. (Especially if the 'foil-Faraday-cage' reduces the
interference). The FCC / DCC etc. have regulations about that sort of
interference. Might get the whole thing completely fixed if the unit is
not too old.
3) Check the power board for loose connections or a dead capacitor,
since as noted, it should NOT be doing that...
4) Cover the power control with a shield...aluminum cooking foil stuck
to cardboard or bristol board with contact cement makes a nice easily
shaped cover. (Been there, Done that).
5) If [ 3 ] then order a new power control board/ demand replacement
etc. etc....
Geoff
--
R. Geoffrey Newbury
Barrister and Solicitor
Suite 106, 150 Lakeshore Road West
Mississauga, Ontario, L5H 3R2
o905-271-9600 f905-271-1638
newbury at mandamus.org
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