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Default "tuning" in a Freeview digital TV set-top box


"N Cook" wrote in message
...
You know that business of old, with indoor rabbit ear antenna. Ask someone
to hold the aerial while you monitor the picture and the best position is
with your assistant holding the aerial at an impossible arm's length , in
middle space.

The same with one of these digital boxes. Good external Yaggi and downlead
and the signal bar is 80 to 100 percent on all stationss except two.
Moving
the plastic cased box around there is a point , in mid space, where the
"no
signal" box disappears and the signal bar goes to 20 to 30 percent on
those
channels. Have to be barefoot to work, also wearing a glove nullifies the
effect. Any advice on how to progress, grounded aluminium around the box?
local ghosting effect ? if so why only 2 stations affected out of the 10
or
more on that one multiplexed UHF channel


--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/


But is it a proper wideband digital antenna ? Some of the multiplexes that
'belong' together, are at opposite ends of the band, so a wideband antenna
is essential. A 'channelised' type, when added to cable slope and other
assorted vagaries of a 'standard' analogue setup, can result in such
oddities as individual channel suckouts, as you are describing.

Where's Bill Wright ? We need him in on this one. He'd put you straight.

Arfa