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In Reply to: What comes out of the chimney? posted by Timbo in Oz on July 2, 2006 at 20:08:38:
My brick chimney is used on my natural gas furnace.Is that type of smoke clean enough or would it still be a problem? A chimney mount
would get my antenna above any roofs in the area but there are some
quite tall trees around.Are these problematic?
Follow Ups:
to allow breezes to work, to remove most of the smoke, and reduce the ambient temperature around the balun if any. That's the thing that let's you use coax instead of ribbon.That IS cleaner smoke, TWIWTAbout - if any! ;-)!
If I were you, given that US winters CAN be ferocyous, I'd talk to an expert local installer - about sealing the antenna terminals / connectors with a spray - like the blue or yellow stuff for car battery terminals.
And self-amalgamating tape may be of use, too.
WarmestTimbo in Oz
The Skyptical Mensurer and Audio Scrounger'Still not saluting.'
Read about and view system at:
1.5 meters above the chimney top is no problem to achieve.I just
wanted to know if there was any advantage to spending the extra
coin to get it up even a little higher yet.Do trees cause any problems?I have purchased a chimney mount kit to mount a mast on the chimney.$20.00.One guy I talked to the other day in a hi Fi shop
claims that every five feet up is a further improvement.This guy is
using a 75ft antenna.That strikes me as overkill.What do you think?
IE2-4 wavelengths at 100Meg, the band centre, then there may be a problem,As in |-|-| - > / \
OTOH I used to have a tree <12 metres away, and it wasn't an issue, it isn't there now.on that front, has anyone planted a potentially large tree nearby, as well?
so, extra height is always worth having,
usually there are mast extenders which fit 'over' the end of your basic mast tube, with fixings.
You may want to consider guying the thing, if you go that far.
My heavy but strong and TALLLL mast isn't, yet, three stand off tubes is the reason I reckon. I did BUY a guying kit, avec turnbuckles etc. yrs ago -;-)! Hard to measure the guy wire 'lengths' safely.
YMMV as you'll have the roof underfoot!
And, I now realise I could use Pythagoras for this task!!!!
WarmestTimbo in Oz
The Skyptical Mensurer and Audio Scrounger'Still not saluting.'
Read about and view system at:
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