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Julian's Satellite Dish

Where To Aim Your Dish, Satellite Tables & Source Code (Global Geometry Program)

Not fastened to the wall by any bolts etc ! ('cos that was a term of residence), instead it wraps itself round the concrete pillar, & is Very stable.

Note the 2 nails on the LNB, held on by embedding in silicon gunk. Birds previously likes sitting there & pecking the thin sheet in front of the LNB, then wasps entered, died, rain went in, & LNB died, so I unmounted it, cleaned it out, dried it, cooled it as much as possible, then sealed a new plastic sheet on with silicon gunk, & added the bird nails. When it get really cold the relative humidity still goes up inside the LNB, & water droplets appear on the inside of the plastic - but it works.

2 Similar pictures First shows the wrap around the concrete pillar a bit better. Second shows the near wall of the balcony too, showing diagonal beam goes whole way across balcony.

Another 2 similar pictures.


Why did I bother to document de-construction ? Well, it's dangerous if done the wrong way, It's got to go up again in 2 months time, (after workers building scaffolding disappear), I have a poor memory, & the pictures will also help to document, in reverse how to reconstruct. (De-construction is just temporary to allow painting of building). That much weight that high wobbles & nearly did me a mischief first time I de-constructed it (or put it up, can't remember, much the same problem either way). Last time I has a mechanically minded friend to help smiley face icon It's not so much a matter of great strength, needed, as more spare hands belonging to a 2nd mechanically oriented human :-)

Remove lower bracket (by removing the 2 bolts beyond the left edge of this picture, but that can be seen on lower big picture. No need to unbolt bolts shown in picture). If lower bracket isn't removed, it prevents the base of the vertical being slid out to avoid balcony rail, which is necessary before base of vertical can be slid left, to lower the vertical.

Unbolt bracer that prevents foot of diagonal slipping out away from balcony rail into space.
(Actually I previously unbolted just 2 bolts further out on the main diagonal, but one is now loose within its hole, spins & won't unbolt. This bracket being on top of the diagonal, it catches the rain & snow, & the screwdriver shows it a little soft, so as I needed to saw the wood out & make a new bit, I'll bolt the replacement underneath, to allow unrestricted rain & snow run off for the Mark 2.

Remove Horizontal (else if not, it obstructs the base of the vertical being slid left & the vertical assembly lowering).

Remove 2 vertical bolts to allow removal of Diagonal

Removal of Diagonal

Note the rope from metal hook to back of balcony, tied round strong drain pipe, which has been in place throughout de-construction up to this point for safety, but which is now removed from drain pipe & held by 2nd man flat to wall at back of balcony, to prevent vertical swinging out into space. Meanwhile 1st man at front of balcony lift the vertical (with dish still bolted on top) about a centimetre, & cautiously push foot out about 2cm to clear balcony rail thickness, then slides base to left, while pushing top of vertical flat to wall to prevent wobble. The slide of base to left continues, & the 2nd mechanically aware man moves when its obviously right time, to help front man haul whole vertical + satellite dish up & over rail.

The beast - safely landed !

The foot. (There's metal protruding out of wall & over balcony at the edge, to provide a water tight seal, so my construction steps clear of that, applying the load to flat metal further out. It also makes the vertical the right height, as the timber I had to hand also wasn't quite long enough. The extension was also at the base, so that if it rotted in harsh Bavarian winters, it was easily unbolted & replaced. The picture shows only slight deterioration by March 2005 (after (at a guess) 15 years in place, when it's now been de-constructed & will be cleaned, sanded & repainted.

Close up showing number of washers so I remember (4 on base, 2 on middle, 0 on top bolts).

Thanks to Clive A. whose help transformed a risky job for one man alone, to an easy job for 2 men, so easy I could stop & take photos.

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