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LNB Types?

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badlnbf
Ex Member


Oct 16th, 2010 at 3:05am  
Can anyone tell me how many different types of LNB's used around the globe? Thanks!
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badlnbf
Ex Member


Reply #1 - Oct 17th, 2010 at 3:19pm  
FYI....

I found 4 types for those that do not know.

Ku-band
C-band
Ka-band
X-band
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salam
Ex Member


Reply #2 - May 13th, 2011 at 2:20pm  
As far as I know, India uses S-band ranging around  1500Mhz. for their DTH(Direct To Home) satelite service.
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USN - Retired
Ex Member


Reply #3 - May 14th, 2011 at 10:51am  
Quote:
As far as I know, India uses S-band ranging around  1500Mhz. for their DTH(Direct To Home) satelite service.

For the record, S-band (IEEE) is considered between 2GHz and 4GHz. 1.5GHz is down in the L-band (IEEE). Frequencies below C-band are generally limited to terrestrial use. This chart may help:
Band       Frequency range       Origin of name
HF band     3 to 30 MHz           High Frequency
VHF band   30 to 300 MHz        Very High Frequency
UHF band   300 to 1000 MHz     Ultra High Frequency
L band       1 to 2 GHz               Long wave
S band       2 to 4 GHz               Short wave
C band       4 to 8 GHz            Compromise between S and X
X band       8 to 12 GHz           Used in WW II for fire control, X for cross (as in crosshair)
Ku band      12 to 18 GHz       Kurz-under
K band       18 to 27 GHz        German Kurz (short)
Ka band      27 to 40 GHz       Kurz-above
V band       40 to 75 GHz
W band      75 to 110 GHz      
mm band    110 to 300 GHz

//greg//
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salam
Ex Member


Reply #4 - May 26th, 2011 at 5:12pm  
Thanks for the details. C band starts from 4 GHz.(actually we get as low as 3.5 Ghz as C band in satellite transmission). I will try to find the link to 1.5 Ghz as S band)
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USN - Retired
Ex Member


Reply #5 - May 26th, 2011 at 10:36pm  
As specified, the list I posted is as published by IEEE. C-Band variations around the world include:
Band                               Transmit Frequency (GHz)       Receive Frequency (GHz)
Standard C-Band                     5.850–6.425                            3.625–4.200
Extended C-Band                     5.850–6.725                            3.400–4.200
INSAT Super-Extended C-Band   6.725–7.025                                                          4.500–4.800
Russian C-Band                       5.975–6.475                            3.650–4.150
LMI C-Band                             5.7250–6.025                          3.700–4.000    
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