KU LNB on a prime focus dish?

[SatelliteAV]

Thanks Satellite AV, you really know your stuff for sure. I appreciate your help. Then for this QPF-031 LNBF I should match it with the Invacom ADF-120 Feed Horn?

The reason that I am so familiar with the QPF-031 and the QPH-031 is that Satellite AV was the first Invacom distributor in the US and I worked with Invacom to develop these two models for the North American market. Long story... Invacom (the company) lacked business integrity, so we parted ways. BUT .... they do make a great product!

Yes. For Circular KU-band DBS (12.2 - 12.75GHz) Dish Netork or Dish Network reception or Linear KU-Band FSS 11.7 - 12.2GHz), match the QPF-031 LNB with the Invacom ADF-120 Feedhorn.

 

[alicante]

Either way, you do have the knowledge. I do have a QPH-031 and use it for Amazonas. Works very well. Too bad Invacom does not make a single output at lower price because all I will be using is one end for Echo14. The two linear and one circular will be wasted.

 

[alicante]

Well, here I am again. I have tried and found two suppliers that sells them but they are both out of stock and don't know if will sell them again. I tried Craigslist, amazon, etc to no avail. I do need both the LNB and the Feed Horn. If anyone knows where to get them even if used I will be interested.

 

[vixens]

cyberEStore dot com

 

[vixens]

watch out with that store: I ordered a QPH 031 (for offset), a QPF 031 with feedhorn (for prime focus) two days ago. The order was declined by CyperEStore but the charge $190 shows on my credit card. So far no reply from customer service via email or tel.

 

[tdti1]

Was just here CyberEstore.com | Bringing the world to your TV, HDTV Antennas, DISH Network, DIRECTV, Free to Air, HDTV Tuner cards, satellite equipment ,supplies & accessories - Contact us when did you email? it says it could take up to 48 hours, for the tel I do not see hours of operation??? Maybe they are not open on weeekend? Good luck hope you get it figured out.

 

[vixens]

Google is our friend.....

The "H" version is a LNBF = with integrated feedhorn. Designed for offset dishes with higher f/d. Not suitable for prime focus dishes.

The "F" version is a LNB = no integrated Feedhorn and requires mounting to a feedhorn. Can be used on both offset and prime focus design dishes with appropriate feedhorn.

QDF-031: KU-band Universal linear LNB with 4 outputs.
QPF-031: KU-band Standard linear LNB on two outputs and DBS circular LNB on two outputs.

If you want optimum reception of circular polarity KU-band DBS signals on a prime focus dish, use the QPF-031 with the matching feedhorn and connect to the circular polarity output(s).

ok thanks for the info:
* the Invacom QPF-031 plus feedhorn is for prime focus antennas
* the Invacom QPH-031 has a feedhorn built in and is for off-set antennas (or both)
* both are linear and circular
document: http://www.sat-sales.com/documents/Tele-satellitetestreportJuly05.pdf

What is the Invacom SNH-031 Universal ?
"H" for off-set antennas . . . but what's the difference to the QPH

Thanks.

 

[Tron]

The SNH is a completely different animal.... Universal, single output, and has no DBS (circular) option.

The "H" in QPH stands for Horn, meaning there is a built-in feedhorn. This is a LNBF.

The "F" in QPF stands for Flange, meaning the LNB is designed to bolt onto an existing feedhorn via a flange interface (in this case, C-120). The QPF will work on a prime focus OR an offset dish, that is dependent on the feedhorn and dish being used.

There is also an SNF version of the SNH that has a flange interface instead of a built-in feedhorn, and dual-output versions of the SNF and SNH (the TWF and TWH).

 

[vixens]

Thanks for the explanation.

What is the Invacom SNH-031 Universal used for ?
What satellites ?

Thanks !

 

[FaT Air]

>> Universal (LNBF) used for ? << Satellites over the Atlantic that have transponders below 11.7Ghz Most of these are aimed at Europe, but there are some aimed this way.

 

[Tron]

A universal will work with any FTA satellite here, but most satellites over North America do not make use of the low Ku frequencies.

The disadvantage of using a universal LNB is that you would not be able to use 22k switching in your system, since a 22k switch is already built into the universal LNBs to switch from low to high Ku frequencies.

 

[vixens]

btw. I found the QPF-031 and feedhorn in stock at the following stores:
orbitelectronics dot net
futurevisionsat dot com
(both merchants replied with good customer service)

CyberEstore never answered my calls and email.

 

[Tron]

As always, the QPF is more expensive than the QPH version. In some cases, where it is imperative that the LNB is C-120 flanged, the extra expense might be worth it.

 

[alicante]

btw. I found the QPF-031 and feedhorn in stock at the following stores:
orbitelectronics dot net
futurevisionsat dot com
(both merchants replied with good customer service)

CyberEstore never answered my calls and email.

Thank you vixens, I went there and placed the order yesterday. They showed "in stock"
for both items so I hope is true.

 

[vixens]

btw. I found the QPF-031 and feedhorn in stock at the following stores:
orbitelectronics dot net
futurevisionsat dot com
(both merchants replied with good customer service)

CyberEstore never answered my calls and email.

I placed an order with both of the above stores on Feb. 22.
Since then I have not heard from them despite my calls and emails. Of course the merchandise never arrived.
Has anybody dealt with these stores before ?

 

[RT-Cat]

btw. I found the QPF-031 and feedhorn in stock at the following stores:
orbitelectronics dot net
futurevisionsat dot com
(both merchants replied with good customer service)

CyberEstore never answered my calls and email.

I placed an order with both of the above stores on Feb. 22.
Since then I have not heard from them despite my calls and emails. Of course the merchandise never arrived.
Has anybody dealt with these stores before ?

Been 10 days and no answer on a simple question to futurevisionsat, so.......?

RT.

 

[alicante]

Same here. I have sent three emails asking the status of the order but no one ever replies. What I think is that these people advertise without having any stock and then reorder from Invacom. Not very good business.

 

[alicante]

Just got a hold of them. They are refunding me again because they are not able to get the items anymore.
You may call to 305-828-8188 for a refund.

 

[SatelliteAV]

You might call the distributor and they should be able to direct you to a reseller who carries the QPF-031 and feedhorn. 770-529-6800

 

[Babadem]

btw. I found the QPF-031 and feedhorn in stock at the following stores:
orbitelectronics dot net
futurevisionsat dot com
(both merchants replied with good customer service)

CyberEstore never answered my calls and email.

Are they reliable?