I know this is OT, but I respect the opinion of many here so here it
I just bought a used 40' TV tower. $75 bucks. 45 miles asthecrowflies
from Detroit I will get about 36 channels a dozen or so HDTV. FREE
I walk the dog by this guy's house and he was wrenching his BMW
motorcycle so I stopped in and asked him about that nice shiny tower
he had... he showed me ...... incredible picture now it is all
digital. A dozen are HDTV... for FREE!!!!
There's never fuck-all on anyway... I pay for 150 channels of pure
Between Netflix and FREE OTA TV... I'm saving some real Erdinger money
I am a retired transmitter engineer, having spent most of my working life
in broadcast, and the definition I gave is the correct one.
Any structure requiring stay wires is a mast whether it is a pole a few
inches in diameter or a TV mast 1000ft high with a much larger cross
section, including such as the mast at Waltham-in-the Wolds, which is an
enclosed steel cylinder having a lift up its inside capable of carrying
four men at a time.
As you say, towers are expensive so tend to be used only up to a couple of
hundred feet. The notable exception in the UK, is the concrete tower at
Emley Moor - which replaced a previous mast, like the one at Waltham,
which fell down.
Sorry but masts can be any cross sectional shape, though triangular is
very common due to maximum strength for minimum material. The only
governing principal is whether it is self supporting or not.
It is a pity there are no illustrations but the text is clear enough,
referring to "Self supporting /towers/" and "Guyed lattice /masts/" You
may like to note that if you follow the link to masts you will find
reference to masts of triangular section.
http://tx.mb21.co.uk/gallery/gallerypage.php?txid "9&pageid 3
Has some interesting photographs and notes regarding the triangular
section /mast/ at Sutton Coldfield. Note especially the BBC Engineering
department letter at the bottom of the webpage referring to /mast/
There are details of lots of other Tx stations here too, including a very
iced-up Holme Moss and the collapsed mast and new concrete tower at Emley
Again, note the references to /mast/ here:
I think we are falling into the same terminology problem where, for
example, you americans, rather illogically, call a machine for planing a
piece of wood flat (a planer) a jointer and a device for machining a piece
of wood to thickness (a thicknesser) a planer
and read the section "Mast or tower", Americans are out of step with both
UK Broadcast engineers and civil engineers.
Yes there in lies the problem...here in the USA we call the "pipe"
portion of an antenna system a "Mast" and anything of lattice
construction whether guyed or free-standing a tower.
If I had of seen your email was in the UK I probably wouldn't have
responded at all.
Very little...when they forced the changeover from analog to digital in
fringe areas, the signal went from snowy to the typical on/off of
digital and we went from the three networks plus PBS and one local to
the two networks most of the time and the third hit 'n miss and no PBS
or local. That's with an external amplifier on the signal prior to the
input to the digital converter; w/o it there's nothing at all.
I've intended to add another 6-10 ft to the tower but haven't got a
round tuit handy enough to have done so, yet.
All in all, as is typical, a setback for rural areas...but then again,
we don't count; all we do is supply the basic food items, what possible
use are we so why bother about them? (Seems attitude of DC and State
governments, anyway, afaict. :( )
Unfortunately, the tool can't move the transmitters any closer nor boost
their signal strength... :(
I _know_ where they are (there are, after all, only three affiliate
signals within 150 miles and the local and PBS are very low level output.
Go to RemoteCentral.com and check out the HDTV forum, you will find
discussion there about OTA TV and reception along the US/Ontario, Canada
I have experienced random reception with some of the OTA TV stations in
my viewing area. I have a disk type antenna mounted about 5 feet above
the roof. Receive three stations all the time, out of 12 to 20 found
after channel search: others drop out randomly while viewing.
Limited, but favorable. I have an antenna and WinTV USB adapter for my
laptop which I use to watch TV on the balcony the rare times I'm
interested in a sporting event.
The picture here in Houston, from numerous stations, is astounding
compared to cable ... not surprising since, IIRC, OTA is not compressed
(or not as much), as over cable or sat.
And it is farking free! ....
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