Advice Needed Muti LNB Holder

[Offtensive]

Hi,

I'm looking for a multi lnb holder, ideally I want to attach 5 lnbs to a 1.1m dish.

I have seen the above. Does anyone know whether this one would require me to screw it on to the LNB arm? Alternatively, if anyone has a recommendation for one that I can purchase from/be shipped to the UK that will be super!

https://www.amazon.de/-/en/PremiumX-Multifeed-adjustable-sidewards-multi-feed/dp/B0052AUSZK/?_encoding=UTF8&pd_rd_w=OIn6b&content-id=amzn1.sym.bbd68511-6819-46d4-a811-fd711ee0e36e&pf_rd_p=bbd68511-6819-46d4-a811-fd711ee0e36e&pf_rd_r=QQSCBTRMYP5S08QWGJ7A&pd_rd_wg=X2a2Q&pd_rd_r=6f7554af-c0e6-4395-8b1c-f379a99d38b0&ref_=pd_gw_ci_mcx_mr_hp_atf_m&th=1

 

[sonnetpete]

I've tried that type before and it's 'skewability' is dependent on the height adjustment of the individual holders. It's very fiddly at best. I found this type worked quite well...

Multi-LNB Holder for All Satellite Dishes Hotbird (Holds up to 3 LNBs): Amazon.co.uk: Electronics & Photo

Free delivery and returns on eligible orders. Buy Multi-LNB Holder for All Satellite Dishes Hotbird (Holds up to 3 LNBs) at Amazon UK.

www.amazon.co.uk

 

[Offtensive]

I've tried that type before and it's 'skewability' is dependent on the height adjustment of the individual holders. It's very fiddly at best. I found this type worked quite well...

Multi-LNB Holder for All Satellite Dishes Hotbird (Holds up to 3 LNBs): Amazon.co.uk: Electronics & Photo

Free delivery and returns on eligible orders. Buy Multi-LNB Holder for All Satellite Dishes Hotbird (Holds up to 3 LNBs) at Amazon UK.

www.amazon.co.uk

Thank you. With that one, do you think I could get away with putting 2 on the centre LNB so I can get 5 altogether?

 

[sonnetpete]

Thank you. With that one, do you think I could get away with putting 2 on the centre LNB so I can get 5 altogether?

Yes, however I'd try the three holder version and a two holder for the other side, as you'll have to use an 'empty' holder to secure the arm to the existing LNB. Oh, position the metal arm over the LNB rather than underneath, I think it makes things easier to adjust.

 

[RimaNTSS]

5 lnbs to a 1.1m dish.

What kind of antenna is that?

 

[Offtensive]

What kind of antenna is that?

It’s a maxx digital, I’ll take some more pictures in the week.

 

[Terryl]

One thing you need to understand, there is what is called ""receive beamwidth"" on a satellite dish, some are only designed to receive one satellite, these dishes are round in shape, they have a very narrow focal area. (10 degrees, +5 -5 off centre)

Other types of dishes have a slight oval shape and are wider side to side, these are called elliptical dishes, they are designed to receive more then one satellite at a time as they have a wider receive beamwidth. (20 to 55 degrees depending on the make)

Putting 5 LNB's out in front of a narrow beam with dish may prove to be futile as the outside LNB's will be starving for signal. (or getting non at all)

Also the mount for these LNB's needs to be able to be skewed (tilted) as your dish looks to not be able to be skewed or tilted to align it to the belt of satellites at your location, the LNB in your picture looks to be skewed, to align it to this belt. (The belt is called the Clark belt pertaining to all the geosynchronous satellites in orbit)

To find out how wide a receive beamwidth dish you would need is to take the furthest West satellite's location you want to receive and deduct the furthest East satellites location, the result is how much beamwidth you would need on a dish.

I would check the specifications on the dish you have to see if it's possible to do what your trying to do.

One last thing, what satellites are you trying for??

 

[Channel Hopper]

One thing you need to understand, there is what is called ""receive beamwidth"" on a satellite dish, some are only designed to receive one satellite, these dishes are round in shape, they have a very narrow focal area. (10 degrees, +5 -5 off centre)

Other types of dishes have a slight oval shape and are wider side to side, these are called elliptical dishes, they are designed to receive more then one satellite at a time as they have a wider receive beamwidth. (20 to 55 degrees depending on the make)

Putting 5 LNB's out in front of a narrow beam with dish may prove to be futile as the outside LNB's will be starving for signal. (or getting non at all)

Also the mount for these LNB's needs to be able to be skewed (tilted) as your dish looks to not be able to be skewed or tilted to align it to the belt of satellites at your location, the LNB in your picture looks to be skewed, to align it to this belt. (The belt is called the Clark belt pertaining to all the geosynchronous satellites in orbit)

To find out how wide a receive beamwidth dish you would need is to take the furthest West satellite's location you want to receive and deduct the furthest East satellites location, the result is how much beamwidth you would need on a dish.

I would check the specifications on the dish you have to see if it's possible to do what your trying to do.

One last thing, what satellites are you trying for??

I would not be happy with a reflector with 10 degree focal area, for a start it would be either very small, or very bent

 

[Offtensive]

I'm planning to centre it on 16e, and have 13e, 19.2e, and 23e as offset LNBs. I will try and get a fifth on 7e; however, I am not too fussed about 7e.

I'm optimistic as 13, 19.2e, and 23e are strong in the UK that it should be doable. I do have 2 spare narrow/bullet Venton Quad LNBs if the normal LNBs are too tight.

I have had a look at the multi focus dishes, and I ma quite fond of the Cahors dishes. The plan at the moment is to use this dish, as its just sitting behind the shed doing nothing. But if it has too many issues, then to upgrade it to a multi focus dish.

 

[Terryl]

I would not be happy with a reflector with 10 degree focal area, for a start it would be either very small, or very bent

Not talking about the focal point, but the -3dB points on ether side of the focal point, this is the receive beamwidth of the antenna, this is where the receive signal falls to 1/2 of the calculated signal at the focal point.

Example: a dish centered to look at 16E with an LNB mounted to one side to look at 23E, and a LNB mounted on the other side to look at 13E would need a beamwidth of 15 degrees or more, (+- 7.5 degrees of center) this to ensure that the LNB for 23E would be far enough within the main signal pattern to have a reliable signal, as it's looking at a satellite that is 7 degrees off centre from the main satellite.

 

[LeBelge]

Hi,

I'm looking for a multi lnb holder, ideally I want to attach 5 lnbs to a 1.1m dish.

I have seen the above. Does anyone know whether this one would require me to screw it on to the LNB arm? Alternatively, if anyone has a recommendation for one that I can purchase from/be shipped to the UK that will be super!

https://www.amazon.de/-/en/PremiumX-Multifeed-adjustable-sidewards-multi-feed/dp/B0052AUSZK/?_encoding=UTF8&pd_rd_w=OIn6b&content-id=amzn1.sym.bbd68511-6819-46d4-a811-fd711ee0e36e&pf_rd_p=bbd68511-6819-46d4-a811-fd711ee0e36e&pf_rd_r=QQSCBTRMYP5S08QWGJ7A&pd_rd_wg=X2a2Q&pd_rd_r=6f7554af-c0e6-4395-8b1c-f379a99d38b0&ref_=pd_gw_ci_mcx_mr_hp_atf_m&th=1

Here is the holder installed. It does not correspond to the image on the Amazon's page. I received that design (model) from Barcelona via Germany.
45°E - 42°e - 39°E - 33°e - 28°E
All 5 LNB are Quad. The dish is Triax 110 cm.



Here it is as it came



The older designs that I have are better for satellites at 3° on smaller dishes.

 

[Offtensive]

@LeBelge Thank you so much for that picture, it is really helpful.

Just to check, is everything in the picture part of the same item? That's great if they give 7 LNB holders for the price fo 4!
Also, to attach the holder onto the arm, did you use the T shaped part and screw that in?

 

[RimaNTSS]

There is my version of multifeed for basically any offset satellite dish (maybe just minor, individual adjustments are needed).

 

[LeBelge]

That's great if they give 7 LNB holders for the price fo 4!

But they do not.

 

[RimaNTSS]

There is my new version of TRIAX LNB-holder. No need to drill additional holes in the feedarm. All LNBs, including the central one, have adjustment possibilities.

 

[specxt]

There is my new version of TRIAX LNB-holder. No need to drill additional holes in the feedarm. All LNBs, including the central one, have adjustment possibilities. View attachment 147782View attachment 147783View attachment 147784

Message me please I would like to order.