Looking to buy a Monoblock Quad LNB for Badr 5 and Astra 2 in UK

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mikeisyou

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Looking to buy a Monoblock Quad LNB for Badr 5 and Astra 2 for a 90cm satellite dish. On this dish I have been able to receive KTV and MBC in the past (2018) but on a single lnb output. Can MBC still be easily receivable in the uk? I can find various monoblock lnbs online but the problem is the degree of seperation changes depending on the size of the dish. I'm on the UK south coast.
 

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MBC channels are no longer on BADR 4 so not the easy catch they used to be, I think they are on BADR 7 MENA beam. Up in the north I'm unable to receive them on a 1.2m.
 

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mikeisyou

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Would this monoblock be compatible with a 90cm dish for Astra 1, Astra 2 and Astra 3? CanalDigitaal Triple LNB QUAD if not what would the spacing between the satellites be?
 

ozumo

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That says it's designed for a 65cm dish. The smaller the dish is, the closer offset LNBs are to the main LNB for the same satellite positions. Therefore in theory on a 90cm dish the 2 offset LNBs will be too close together for optimum reception.

However with that monoblock the horizontal and vertical probes *should* be optimised for the Astra pre-skew should you use it with a 65cm dish.

Looking at the LNB necks they appear to be 23mm, I wonder when used with the 40mm adapter if you may struggle to fit the monoblock in many dishes' 40mm LNB holder- without the holder getting in the way of the offset LNB necks.

Three separate LNBs and a multi holder would be the best option signal wise, although it would be pain of a wiring job.
 

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1608674961561.png

88 cm mesh dish 28.2E + 19.2E + 13E + 4.8E
 

a33

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if not what would the spacing between the satellites be?

Well, as the CanalDigitaal triple LNB is meant for a 60 cm wide dish ("triax64") hereabouts in the Netherlands and Belgium,
for a 90 cm wide dish you have to multiply the satellite arc-differences by a factor 60/90, so factor 2/3, as a rule of thumb.

Still wanting to catch 26E and 28E with that?
As you are even more at an angle towards these satellites than in the Netherlands, the actual arc difference might be even a bit greater than the so-calculated values for 19-23-28, again.
Also the pre-skew of the LNBs could create a problem for 26E, I think.

Alas in the monoblock specifications, they seldomly mention the heart to heart distances between the feedhorns.....

Greetz,
A33
 

william-1

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45cm dish V8 Golden 28E FreeSat Quad Lnb
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1608675176826.png

This was an earlier set up on a 88cm dish 28.2E + 19.2E + 13E
 

mikeisyou

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Still wanting to catch 26E and 28E with that?
I've given up on 26e since as it's not easily receivable.


Is it possible to receive Thor 0.8w and Astra 2 on a 90cm dish? If not what is the maximum amount of satellites I can receive either side of the center satellite. I know you can on a Toroidal (Wavefrontier) dish.
 

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I've given up on 26e since as it's not easily receivable.

Ah, OK.

Then I can confirm what @ozumo wrote: the triple LNB 19-23-28 will not work on a 90 cm dish, especially not at an greater angle towards the satellites than in The Netherlands.
The triple LNB works also very good here on a Triax78 (70 cm dish); in fact, even better than on a 60cm dish, but then it needs much more systematic finetuning than on a 60 cm dish (as you have the find the best compromise position for the feedhorns being not spot-on).

For 28E and 1W: I think that would be possible on a 90cm dish. But of course, the local expertise is what counts...

Greetz,
A33
 

mikeisyou

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thanks for everyones help, topic can be closed
 

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Motorise the dish.
 
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