Help with LNBs

[davet2020]

Hi,

We are starting to install FTA satellite systems. One problem we are having is telling whether an LNB that comes with systems is a standard, universal, or stacked. The LNBs are not marked with these terms. How can I learn more about LNBs or tell what kind of LNB I am installing.

Thanks in advance for your help,

Dave

[Sadoun]

Usually the LNBF or its box should have a freq range listed.

Standard LNBF have a range between
11.7 - 12.2 GHz,
LO Freq: 10750
22KHz: Off (unless you are using a 22KHz switch)

Universal go from
10.7 - 12.75 GHz with
Lo Low: 9750
Lo High: 10600
22KHz: ON or AUTO

[davet2020]

Sadoun,

Thanks for your reply. In the antenna setup screen and it asks for LO ...do I input 9750 or 10600.

Also, could someone explain about setting the polarity of the LNB. It is a round and shaped like a bullet. It has a single mark on the top. Is this the O degree mark? For positive degrees do I rotate it clockwise.

Thanks everyone,

Dave

[bobkat]

Originally Posted by davet2020

Sadoun,

Thanks for your reply. In the antenna setup screen and it asks for LO ...do I input 9750 or 10600.

Also, could someone explain about setting the polarity of the LNB. It is a round and shaped like a bullet. It has a single mark on the top. Is this the O degree mark? For positive degrees do I rotate it clockwise.

Thanks everyone,

Dave

Hi Dave:

You put in 10,600 MHz for the L.O. frequency.

The mark is usually the zero degree mark and points up for 12 o'clock or 0 degrees (no skew). Rotate your LNB counterclockwise if you live in the east or clockwise if you live in the west. See alignment instructions for complete details.

kat

[Sadoun]

It is a round and shaped like a bullet

We used to sell these LNBFs a few uyears ago. It is not a high performance lnbf. It is a standard LNBF and LO freq should be set at 10750

[davet2020]

Sadoun,

That is it. Maybe I will upgrade the LNB. I hate cheap parts and will only increase the price to my customer, who will be getting a better system. Can you recommend a high quality LNBF for me.

Thanks,

Dave

[Sadoun]

Dave, check http://sadoun.com/Sat/Products/Forte...NBF/FSKU-v.htm

[johnnyd]

Can u recommend your highest quality DUAL LNBF? I see the fortec and Pansat with .7 and .6 db. One is universal and one is standard. What difference does it actually make?

Are dual/quad LNBF's automatically not as good as single LNBF's?

Thanks,

JohnnyD