Installing a motorized dish

[Moo]

Hi there,

I've had a snoop about the forums to get the answers to a few questions before I start drilling into walls, but theres a few things I'm still not clear on. Hopefully someone can help.

Well firstly I don't know where to mount the dish, our house is slightly south-west facing so Nilesat is almost directly facing the rear - I see two options :

http://imgur.com/QbLsR.jpg

option a: gives the dish more travel but harder to fit, more exposed and I would need some t&k brackets etc
option b: less travel, bit easier to fit, less exposed and I can use the bracket I have

Also I'm not even that sure if the bracket is any good, it came as part of an install kit but it looks a bit flimsy to take the motor - its just under 1.5" in diameter, just like this:

http://cms.killercontent.net/media/ec/97866f60479448d0a4152c0023a6ace1satbracket.jpg

Finally I saw another thread about this but it didn't really answer what I wanted to know, how far can a motor rotate the dish and how do you stop it from turning too far and hitting obstructions?

Any help would be appreciated and please feel free to point out anything I've got wrong, I'm new to this :violin:

Thanks!

 

[paul362]

NO NO NOOOOO, you cant use that bracket for motorised m8, you will need a T&K for your mounting pole and looking @ your piccy's you will need to mount it to the corner of the house (unless you don't mind a nice view of your pole from the window).

OK this should help you.

NOT MY WORK ALL CREDIT TO THE ORIGINAL POSTER.

Satellite dishes can be thought of as very ugly devices but there are ways of disguising your dish. Metal dishes can be sprayed with car paint to help them blend into the surroundings or you may want to by a transparent satellite dish made of poly carbonates which for installations near the seaside are brilliant as they do not rust. New products are always being developed to help people disguise their satellite installations. As with allot of things size really does matter but due to the local council's dislike of satellite dishes you may not get planning permission for anything to large and your neighbors may complain if the dish obstructs a view from their property so I would recommend not going for a dish any bigger than 90cm though you can always risk a bigger dish and hope that nobody notices. Bigger dishes are essential for picking up weaker signals.

You want to buy a universal LNB and preferably 0.3db. The lower the number the better the picture quality will be. Universal means that the LNB is not fixed to only receiving channels on a certain band.

The motor should support Diseqc 1.2, Goto X and USALS as should your satellite receiver. USALS stand for Universal Satellite Automatic Locator System and use your longitude and latitude in order to track the satellites positioned above the Clarke belt. Having USALS will make things simple so it's a good thing to have. The Moteck Digipower 2100A would be my choice as it supports all of the above and can turn from 75E to 75W. This motor can be driven using buttons on the base of the unit which helps to set the dish up quickly. It also moves quite quickly so you don't have to wait so long when moving from one satellite to another.

Starting the install

A dry warm weekend is best for this preferably when your partner is out shopping or something. Start by looking for a neighbours Sky satellite dish and look where the dish arm is pointing. As we are in the North and the satellites circle the equator we know that our dish has to have a clear view of the south. Alternatively use a compass for a more precise reading. Look at your home and decide where the best place to mount the dish will be. Mine is on the side of my house just above the roof so it has an unobstructed view of the Sky both East to West.

Once you have decided where the dish will go you need to fix the brackets to the wall. Opinions differ as to how these should be fitted to the wall but I prefer to have the K at the top as I believe it adds greater stability to the dish especially in high winds. The brackets should be approximately 1m apart. You will need strong bolts in order to get a good fixing.

Once complete you will need to attach the pole using U clamps and make sure that the pole is 100% vertical. This is the most important thing you will do so make sure it's spot on and check with either a spirit level or inclinometer.
A hammer may be needed to tap the brackets and pole in order to get things completely level.

Once complete go and have a cup of tea and read the instruction leaflet that came with your dish. Dish assembly is quite straight forward.

Unpack the motor and flick through the instructions. There should be a chart which tells you what to set the inclination and declination to on your motor and satellite dish based on your latitude. If you don't know what your latitude and longitude are you can visit multimap.com and type in your post code. Your latitude and longitude will be displayed under the picture of the map.

Now would be a good time to wire up the LNB to the motor. Pre made cables for this purpose are available.

Set the motor and dish to the settings given in the motor manual and triple check everything as it's far easier to work on the dish when it's on ground level. Now bolt the dish to the motor insuring that the motor is set to 0 degrees and that the dish goes on completely central. Again this is an important step so make sure it’s accurate.

Take the dish up the ladder and bolt it onto the pole making sure the dish will not be obstructed by anything. Using a compass find magnetic south and adjust to find true south. A map that shows the magnetic variation for your location is helpful but not essential as you can turn the dish manually and raise and lower the dish as long as the brackets are loosened.

As a general rule you want to find the closest satellite to your longitude, which will always be the highest satellite in the Sky and gives you a better chance of tracking the arc, in my case I chose Thor 1W (If you were in Dublin say, you would be better with Atlantic Bird at 5W).

Plug in your satellite receiver and run a cable outside so that you can plug in your satellite meter. Satellite meters take power from the receiver so the receiver will need to be on and not just in standby. A good meter for this purpose is the Digisat Pro satellite meter. Connect your cable from the receiver and another cable to the motor and gently move the dish side to side and up and down until you get the best possible signal. Once complete you can tighten up the brackets and run a new satellite cable from the motor to the satellite receiver.

Satellite cables come in 3 main colours which are white, brown and black. You should use the colour of cable that is most pleasing to the eye. I find black cable is best suited to brick houses.

You should now weatherproof your hard work with silicone and tape and make sure that the cables are long enough that should the dish move a long way in one direction that the cables will not be stretched or damaged.

You can now set your receiver to USALS and start scanning and storing satellites.
It is advisable to check which satellites you can receive for your size / type of dish on the satellite forums. You may need to tweak your setup a little to get a good signal on all satellites.

THIS IS NOT MY WORK I JUST COPIED IT.

 

[SLOTH]

Just to add to the above ...or rather reiterate ....the POLE being vertical in both planes is the most important thing ...if its not you will lose sats at each end of its limits . also you can set its travel limit with software on your receiver or on certain motors (i believe).
hope this Helps
Sloth

 

[Moo]

Thanks guys

why do they include this in a motorised install kit if its not good enough, any idea where to buy proper brackets?

maybe i should get someone out to do this, any idea how much it would cost?

i'm glad i didn't rush into fitting this, the neighbours would probably have a nice round hole in their conservatory by now

 

[paul362]

Thanks guys

why do they include this in a motorised install kit if its not good enough, any idea where to buy proper brackets?

maybe i should get someone out to do this, any idea how much it would cost?


i'm glad i didn't rush into fitting this, the neighbours would probably have a nice round hole in their conservatory by now

I don't know why you would have got that bracket in a motorised kit maybe just a way of making more money out of the first time sat people, rather than supplying a decant T&K bracket and pole which would cost a lot more, as far as having it fitted goes I would say in the region of £100.00 for that.

 

[Moo]

thanks everyone

 

[SLOTH]

Moo ...were are you based , maybe a more experinced sat person can come round and give you a hand ?
Sloth