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FAQ for LNB / LNBF:
What does LNB and LNBF stand for?
LNB stands for Low Noise Block. LNBF stands for Low Noise Block
Feed.
What is the difference between LNB and LNBF?
LNB usually only receives signal from 1 polarity (Vertical or
Horizontal for Linear FSS and Right or Left for Circular DSS) A
good example of of a LNB is our
ASC511 Ku LNB. Another good example is our C band LNB the
BSC211. The
rest are mostly LNBF's. Usually Vertical and Right polarities
operate on 13V DC and Horizontal and Left polarities operate on
18V DS.
What is the difference between a Standard Ku band LNBF,
Normal Ku band LNBF, and Universal Ku band LNBF?
There are 3 main types of
LNBF's.
The first is Standard. Standard & Normal LNB and LNBF's are the
same. They are FSS linear and the frequency range is from
11.7GHz to 12.2GHz. The second type of LNB/F is Universal. The
frequency range for a universal LNBF is 10.7GHz to 12.75GHz.
This is more popular in Europe and the Middle East because their
satellite broadcast within the 10.70GHz to 12.75GHz. The third
and the most popular in the United States for DISH Network &
DirecTV is
DSS.
DSS LNBF's are always circular. The frequency range is
12.2GHz to 12.7GHz.
What is the difference between linear and circular LNBF's?
Linear covers Horizontal and Vertical. Circular covers Left and
Right. Circular hits your dish more like a screw that is
turning as its coming down.
Is C band
Linear or
Circular?
C
band, just like Ku band can be either
linear or circular. Most C
band satellites are linear rather than circular.
Are your C band LNB or LNBF's Linear or Circular?
Our BSC421,
BSC621, and
BSC621-2
(C-band LNBF) models come with a
di-electric plate which allows the reception of
circular
signals as well. Without inserting the di-electric plate,
the LNBF only receives linear signal.
How do I know if I need a linear or circular
LNBF?
Click Here or go to lyngsat.com and choose the satellite you
are trying to pick up. Under the transponder frequency column (Freq.
Tp) you will see a letter next to the frequency. If the letters
used are R or L (Right or Left), then it's a
circular
broadcasting transponder. If you see the letters H or V
(Horizontal or Vertical), then it's a
linear
broadcasting transponder. |
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