Sited like this to obtain reliable signals.
Trees blocked signals everywhere else.

The mast and cabling have been  left long,
to allow for any  future tree growth.

This one dish feeds 4 Sky HD boxes.
A dish installation in Boscastle.
Invisible from the road.
Fitted low down, out of the wind.
A high gain aerial in an exposed coastal
location near Padstow. The signals here
are low, and salt laden winds will quickly
rust any untreated steel in the installation.
An NCDC, IRS array at Mount Camel, Camelford after a storm. The masonry bolts first fitted  were undersized, and the brackets too close together. This typical array, with its amplifiers and multi-switches supplies twelve flats. A closeup of the problem.
Too much leverage in high winds
have pulled the undersized bolts
out of their fixings.
All fixed.
The top bracket has been re-positioned
higher up the wall, with new, larger bolts.

Dish alignment checked and optimised.
A similar problem in Tower Street Launceston, after a storm. The telephone wires were the only reason that it did not all come crashing down. A closeup of the problem. Once again
the bolts used were too small. and the brackets too close together.
All fixed. Larger bolts fitted, and
the top bracket mounted higher.
Hanging by a thread.
Also in Tower Street Launceston.
Here's the thread.
A closeup of the back of the steel dish.
Only five years old.
All fixed again.
A new fibreglass dish has been fitted.
It will outlast any steel dish by a
number of years.
It looks OK from the ground.
Again in Tower Steet Launceston.
But on closer inspection. The support arm has rusted away after only five years. The LNB then dropped out of the prime focus position under it's own weight, causing signal strength and quality to deteriorate.  
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