Monoblock LNBs 6° Astra/hotbird type..which is the best,most sensitive to weak signals?

rodscha

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I often enjoy watching Albania on 12639/H/10833 on 16°E ,in South France
The signal is always just above/under watchability when others(Slovenia, Montenegro,Kosovo,Romania,Croatia... work just fine!
I m using a monoblock,as it brings along 9E loud and clear
LNB reviews are always on single ones;
I'd like an advice on better 6°monoblocks, any suggestions?
Any advice? Mine' s pretty old,so I'm considering a new one of course!
 

ozumo

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Two separate LNBs and a DiSEqC switch will perform better than a monoblock.
 

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Two separate LNBs and a DiSEqC switch will perform better than a monoblock.
And, generally, will be easier and more precise to set up (speaking from, never to be repeated, "experience"!) - although you might well need slimline (23mm neck") LNBs to allow them to be mounted a bit closer together.
 

rodscha

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I see ... thank you for the sound advice!
since I manually point my dish,I appreciate having 2 sats in one go,like 13 and 19/ 16 and 9/1w and 4.8 east...
but I get your point, a single LNB means more precision

also,I notice different "pointings"/elevations/ on 16 East between Romania/croats and slovenes/ and the Kosovo-Albania group...
they seem to be on slighly different points of the Clarke Belt,thereby needing some precision fiddling.
Albania needs more elevation than Slovenia for example
 

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Personally, I don't believe in monoblocks. They also have to match the antenna, especially the size.
I can only agree with the recommendations.

As for your observation, I know there are differences at 16 ° E.
On other satellites, the elevation of the Ku band sometimes differs from that of the C or Ka band.
The reception also depends on the transponder data.
With less sensitive transponders, you may not even notice a deviation in elevation.


Personnellement, je ne crois pas aux monoblocs. Ils doivent également correspondre à l'antenne, en particulier la taille.
Je ne peux qu'être d'accord avec les recommandations.

Quant à ton observation, je sais qu'il y a des différences à 16°E.
Sur d'autres satellites, l'élévation de la bande Ku diffère parfois de celle de la bande C ou Ka.
La réception dépend également des données du transpondeur.
Avec des transpondeurs moins sensibles, vous ne remarquerez peut-être même pas de déviation d'altitude.



Persönlich halte ich nichts von Monoblocks. Sie müssen auch zur Antenne, vorallem der Größe passen.
Ich kann mich nur den Empfehlungen anschließen.

Was deine Beobachtung betrifft, weiß ich dass es Unterschiede auf 16°E gibt.
Auf anderen Satelliten differiert manchmal die Elevation des Ku-Bands zu jener vom C- oder Ka-Band.
Darüber hinaus ist der Empfang noch von den Transponderdaten abhängig.
Bei weniger empfindlichen Transpondern wird dir eine Abweichung der Elevation eventuell gar nicht auffallen.
 

rodscha

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Thanks a lot
Merci beaucoup
Danke vielmals für die schöne Erklärung !
Bei Dir ist sicher Albanien viel näher und damit einfacher zu empfangen.

I may put up the 13/19 dish as a fixed one
and keep the ,monoblock really super convenient for these,& favorite lists etc...
On the side, get another dish (1m?) with a good,sensitive LNB for fun... and keep it moveable.
As for motorization ,it doesn t like the high winds we get here!
 

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but I get your point, a single LNB means more precision

Only when you have room enough for two LNBs, next to each other.

When you can only make enough room by using slim-line LNBs, that would affect reception negatively, so in that case a monoblock LNB with the right separation distance (for your wanted satellites, your location, and your dish) could really be a good (better) alternative.

Slim-line LNBs are extra sensitive to rain drops, so when you use those, use rain protection (rain caps)!

Greetz,
A33
 

rodscha

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Here,lots of monoblocks with 80cm dishes;
they seem to be adapted to Mid-French latitudes
-French & Spanish channels split over 13&19
-Arabics on 13;the Dutch BVN constantly swings from 13 to 19..
-if you want French & Italians and cnn bbc world skynews...monoblock!simple & easy 1 cable 1 cheap receiver!
I have a double tuner,access 1 on Monoblock;access 2 onAstra2 ,fixed!
The UK is lucky to have everything on 28E
 

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Thanks a lot
Merci beaucoup
Danke vielmals für die schöne Erklärung !
Bei Dir ist sicher Albanien viel näher und damit einfacher zu empfangen.

I may put up the 13/19 dish as a fixed one
and keep the ,monoblock really super convenient for these,& favorite lists etc...
On the side, get another dish (1m?) with a good,sensitive LNB for fun... and keep it moveable.
As for motorization ,it doesn t like the high winds we get here!
Since 16 and 9 East are seven degrees apart, it would be almost impossible to find a single/monoblock LNB that brings in both satellites with similar performance.

What is the highest expected wind in your region, the professional reflector brands are always specified for operational and survival speeds however I would recommend a polarmount over a integrated motor gearbox drive.
 

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Slim-line LNBs are extra sensitive to rain drops, so when you use those, use rain protection (rain caps)!

Something like this?

 

jeallen01

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Something like this?

Given the width of that cover, you would not be able to fix the two other LNB's on either side.

Better to fix brackets on outboard of the 2 outer LNBs, and then "something" right across the top of all three - make the brackets from easily bent exhaust hanger perforated strip, and then maybe a length of rain guttering as the "something" across the top.

PS: also a lot cheaper :D
 

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On the side, get another dish (1m?) with a good,sensitive LNB for fun... and keep it moveable.

Yes a Triax TD110 will do the job for 16°E
 

a33

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Something like this?

Yes, could be. (And it is cheaper than I remember, from some some years ago...)

But also do-it-yourself solutions are OK, as also proposed by jeallen01.
I've seen plastic bottles cut down to fit the individual LNB-heads, even plastic trays used in the supermarket attached above the LNBs.
As long as no drops keep hanging on the LNB feedhorns....

Greetz,
A33
 

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No-one has mentioned the relatively new-fangled adjustable (up to 12 degrees) Monoblocks.


(Oops. I just did, but I think I might have got away with it)
 

ozumo

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I saw those adjustable monoblocks a few years ago but when I wanted one to try I couldn't find them for sale.

The other trouble with monoblocks is the skew is not adjustable. I'd hope if they are designed for certain satellites then the skew offsets would be built in - but I don't know.

A monoblock for 19.2°E & 13°E should have IIRC 7° offset for Astra 1 & 3.5° for Hotbird. If you use the same monoblock for 16°E & 9°E then the skew for 16°E will have the Astra offset.

I don't think there'll be a need for slim LNBs for 7° separation on an 80cm dish.
 

rodscha

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Yes, could be. (And it is cheaper than I remember, from some some years ago...)

But also do-it-yourself solutions are OK, as also proposed by jeallen01.
I've seen plastic bottles cut down to fit the individual LNB-heads, even plastic trays used in the supermarket attached above the LNBs.
As long as no drops keep hanging on the LNB feedhorns....

Greetz,
A33
The white plastic agglomerate box packaging my latest-but-two mobile phone makes an excellent "monoblock cap" ,only the top half of the box,so I ve still got 1 spare(the bottom part of course);shelters from sun(white!) and rain (waterproof)...Thank you Samsung!
 

rodscha

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No-one has mentioned the relatively new-fangled adjustable (up to 12 degrees) Monoblocks.

And,yes I'd like to get one of these!
Who makes/sells them?
 

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No-one has mentioned the relatively new-fangled adjustable (up to 12 degrees) Monoblocks.

And,yes I'd like to get one of these!
Who makes/sells them?
Unless they are adjustable for skew I doubt they will be efficient.

Inverto made a range of thin dielectric horn LNBs with their own feedarm clamping system (slim multiconnect).

I used them many years ago on a number of installations, apart from the odd realignment when birds have perched on the end of the end of the dish, they are all still functional.


You might find a dealer that still has the system in stock.
 
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