Receiving eutelsat 9e in combination with hotbird, astra 1, astra 2 triax 78cm

Stevenvc19

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My Satellite Setup
3x Edision Primo S2:
30W
5W
0.8W
4.3E
9E
13E
19.2E
28.2E
My Location
Willebroek Belgium
Hello everybody,

I have a question that maybe I already know the answer to, but i'd like to here about your experiences.

At home, I have a Triax 88cm with 3 LNB's pointing at Eutelsat 9e, Hotbird, Astra 1.
Those LNB's are positioned almost next to each other with 9e almost as prime focus. As you can see on this picture.
(some years ago, I also received Eutelsat 5W on this dish, but with the upcoming of multistream, the reception was to instable so I pointed another dish directly to 5W)
I didn't reposition the dish so my LNB's on 9e, 13e and 19.2e are still in the same position.


At my grandparents, I installed a triax 78 that receive Hotbird, Astra 1 and Astra 2. With Astra 1 in Prime focus.
However, I can't get reception of 9e on this dish. I suspect that this is because of the smaller dish size which means my LNB's should be closer together and therefor the LNB of Hotbird is causing this problem because there is no space left to get reception of 9e?

I don't have a very good picture of the dish at my gransparents. It's the one (at the chimney)




IMG_2810.JPGIMG_7319.jpg
 

a33

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For 5W to 28.3E, the rail should be tilted about 12.8 degree for 51N, 4.4E. Is/was that the case? It looks less on the photo, at the moment.

For the 9E/13E combination on Triax 78 I guess you'd need at least one LNB with a smaller diameter head.
Or a monoblock LNB with the appropriate distance between heads; but that would give the 'problem' of thinking what switching gear you need, in combination with the other LNBs. Though there are several solution methods for that.

Greetz,
A33
 

Stevenvc19

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My Satellite Setup
3x Edision Primo S2:
30W
5W
0.8W
4.3E
9E
13E
19.2E
28.2E
My Location
Willebroek Belgium
For 5W to 28.3E, the rail should be tilted about 12.8 degree for 51N, 4.4E. Is/was that the case? It looks less on the photo, at the moment.

For the 9E/13E combination on Triax 78 I guess you'd need at least one LNB with a smaller diameter head.
Or a monoblock LNB with the appropriate distance between heads; but that would give the 'problem' of thinking what switching gear you need, in combination with the other LNBs. Though there are several solution methods for that.

Greetz,
A33
Thank you for this information A33!

You are right, my rail isn't tilted on the picture and may have caused the problems for 5W in rainy weather. now I have a stable reception of the French multistream channels, even in bad weather!

So I am planning to repoint my triax 88 with the 3 LNB's that are left because I won't need the LNB at 5W anymore on this dish. Also on this dish I can't receive Astra 2 because a tree in the neigbours garden is blocking the reception... So for A2 I have another smaller dish.

That leaves me with 4 dishes in my garden.
1 Triax 88 for Eutelsat 9, Hotbird and Astra 1
1 Triax 78 for Astra 2
1 Triax 88 for Eutelsat 5W
1 Triax 78 for Hispasat 30W. (which is too small to get a stable reception for some spanish channels when there are some showers so planning to upgrade to a triax 88 for that)

Anyway, back on topic: For a Triax 78 I will need at least one (preferably two) small LNB's because the difference in degrees is too small.

That answered my question! :-D
 

Terryl

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For the best reception on a multi satellite setup, the dish used should be an elliptical type, they have a wider front end and can supply a stronger signal to the outside positioned LNB's.

Most single satellite dishes setup for multi satellites only have at most a ten degree wide front end , here stateside the 3 prime satellites for most using Dish Network are 110, 119 and 129, for this a dish 1000 setup is used it can cover the 19 degree spread without problems.

So find the locations of the satellites your looking for, take the highest location and deduct the lowest location, the remainder will give you an idea on how wide a front end would be needed for the dish.

In your case several satellites are to the East of "0", then 30W is to the West of "0", for this your looking at a dish with at least a 40 degree wide front end.

Something like this one would work...
Code:
https://digiwavetechnology.com/index.php/digiwave-36-inch-elliptical-satellite-dish.html

This way you only have one dish to cover for most, but Astra 2 would still need to be on a second dish.
 

daro2096

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Why not install a wave frontier t90 dish?
 

daro2096

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For 5W to 28.3E, the rail should be tilted about 12.8 degree for 51N, 4.4E. Is/was that the case? It looks less on the photo, at the moment.

For the 9E/13E combination on Triax 78 I guess you'd need at least one LNB with a smaller diameter head.
Or a monoblock LNB with the appropriate distance between heads; but that would give the 'problem' of thinking what switching gear you need, in combination with the other LNBs. Though there are several solution methods for that.

Greetz,
A33

Or he could put 9E on a mini dish and use the 78cm dish for 13, 19.2 and 28.2E. All those satellites are strong signals at least according to the footprints. In theory he could install 4 mini dishes for each satellite if he has accommodating neighbours.
 

a33

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Anyway, back on topic: For a Triax 78 I will need at least one (preferably two) small LNB's because the difference in degrees is too small.

Problem with narrow-head LNBs is, that they are very sensitive to raindrops on them. So try just one narrowhead NB, leaving the bigger head LNB for the weaker satellite/the satellite you want most continuous reception of.
Or use a monoblock, as I suggested. For switching we can discuss what solution would fit for you: diseqc1.1 switch, 2/1 option switch, or modified 4/1 diseqc1.0 switch.

For your own setup:
Wouldn't a 78 dish work for 5W also? Then you can switch dishes for 5W and 30W.
The tree blocking 28E is not on the picture?
Four dishes in the garden, you must be a 'fanatic'! :)

greetz,
A33
 

Tururu

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@daro2096
The T90 is like a good antenna of 80cm or a bad antenna of 90cm.
If the footprint of the satellites allows it ?????, perfect, you are within range with good antenna performance.
28'2ºE-9ºE = 20º OK. (efficiency 80%, 39'65dB +0'45dB.).
-------
La T90 es como una buena antena de 80cm o una mala antena de 90cm.
Si la huella de los satelites lo permite ?????, perfecto, estas dentro de margen con buen rendimiento de la antena.
28'2ºE-9ºE=20º OK. (efficiency 80%, 39'65dB +0'45dB.).

0__1386_l_ms1.rvf_1.jpg
 

Stevenvc19

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My Satellite Setup
3x Edision Primo S2:
30W
5W
0.8W
4.3E
9E
13E
19.2E
28.2E
My Location
Willebroek Belgium
Problem with narrow-head LNBs is, that they are very sensitive to raindrops on them. So try just one narrowhead NB, leaving the bigger head LNB for the weaker satellite/the satellite you want most continuous reception of.
Or use a monoblock, as I suggested. For switching we can discuss what solution would fit for you: diseqc1.1 switch, 2/1 option switch, or modified 4/1 diseqc1.0 switch.

For your own setup:
Wouldn't a 78 dish work for 5W also? Then you can switch dishes for 5W and 30W.
The tree blocking 28E is not on the picture?
Four dishes in the garden, you must be a 'fanatic'! :)

greetz,
A33

@a33 ,

I am a fanatic :-)

- The tree blocking 28E isn't on the picture indeed.
- I established a stable reception of the french multistream channels with the 88 dish so I guess I'll just leave that like it is. Nothing more irritating than watching a movie on the french channels and suddenly losing signal due to heavy rain :-)

- A Triax 88 costs about €35 at my local shop! So when it gets warmer and the sun shines, I just replace the 78 dish with the 88 for 30W. That gives me the 78 as spare dish to test my abilities to get 28e, 19e, 13e and 9e on the same dish. If i succeed, I know I won't climb for nothing on top of the roof at my grandparents' :-)
 

Stevenvc19

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Messages
308
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My Satellite Setup
3x Edision Primo S2:
30W
5W
0.8W
4.3E
9E
13E
19.2E
28.2E
My Location
Willebroek Belgium
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