How to install DiSEqC
Motors
A
Riggers Rough Guide to DiSEqC Motorised Installations
- Select
your installation site carefully!!!
- There
must be a clear line of sight between the required satellites
and the entire surface of the dish. The line of sight must
be free from obstructions, such as trees, roof tiles etc.
- It
is very important to make sure the mount is fixed to a perfectly
vertical mast. Time spent measuring this accurately will save
you hours later on.
- Set
the DiSEqC mount back to zero degrees by connecting the receiver
to the mount. The receiver must be on for the mount to move.
It is easier to do this before fixing the H-H mount onto the
mast.
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5. Once
you have done this, the mount should then
be disconnected from the receiver.
6. Fit
the H-H mount onto the mast and do the nuts up
finger tight.
7.Use
an inclonometer to set the H-H mount angle. See
picture on the right.
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8. This
angle should be calculated from the latitude of the installation
location. See the chart below
for details.
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JOHN
O GROATS 58.39°
ABERDEEN
57.08°
EDINBURGH
55.57°
MANCHESTER
53.30°
BIRMINGHAM
52.30°
LONDON
51.32°
EXETER
50.43°
LANDS
END 50.03°
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9.Fit
the dish on to the front of the H-H mount arm and tighten
the nuts. The middle of the dish clamp must be lined up
with the centre line on the H-H mount arm. See the picture
on the right
10.
Connect the LNB to a good quality meter, such as an EP314
from Unaohm or a handheld AD 70 meter. Firstly you will
need to find Intelsat 707 at 1°
west. See below for other suggested meter settings.
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ORDER
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SATELLITE
|
L/O
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FREQ
|
POL
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22
kHz
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S/RATE
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FEC
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1
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ASTRA
28.2E
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9750
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10.862
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H
18V
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OFF
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22000
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5
/ 6
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2
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ASTRA
19.2E
|
9750
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10.788
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V
13V
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OFF
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22000
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5
/ 6
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3
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HOTBIRD
13E
|
10600
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11804
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V
13V
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ON
|
27500
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2
/ 3
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4
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INTELSAT
707 1W
|
9750
|
11540
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V
13V
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OFF
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26000
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3
/ 4
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5
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HISPASAT
30W
|
10600
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12012
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V
13V
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ON
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27500
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3
/ 4
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11. Move
the dish back and forth by moving the H-H mount clamp
attached to the vertical mast. Make sure the dish remains
on the centre line displayed on the H-H mount arm.
12.
You will also have to adjust the elevation to the dish
to peak the signal. See picture on the right
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13. When adjusting these two movements, use the meter
to measure the signal. Once the signal has peaked, tighten
the dish elevation.
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14. Next, move the dish back by 1°
by moving the H-H mount clamp attached to the vertical mast.
This will give you the south position required. See picture
on the rightn
15.
This is a small movement and with experience, can be guessed
fairly accurately. Take note of the signal loss on the
meter, which occurs when this small movement is achieved.
16.
Tighten the nuts on the H-H mount clamp attached to mast.
17.
By following these instructions accurately,
you should now have installed your dish on the arc.
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18. To
test your installation, re-connect the receiver to the H-H mount.
19.
With the satellite meter still connected, select Astra 28.2E
on the meter.
20.
Move the dish east by pressing the small east button underneath
the H-H mount.
21.
Peak the signal on the meter for Astra 28.2E until you believe
it is as good as you can get by moving both east and west.
22.
If you cannot improve the signal by leaning the dish back and
forth then you have probably correctly found one side of the
arc for the dish.
23.
With the satellite meter still connected select Hispasat 30w
on the meter.
24.
Move the dish west by pressing the small west button underneath
the H-H mount.
25.
Peak the signal on the meter for Hispasat 30w until you believe
it is as good as you can get by moving both east and west.
26.
If you cannot improve the signal by leaning the dish back and
forth then you have correctly found the arc for the dish.
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