SatSig topic:

How many types of LNB are used ?

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Oct 16^th, 2010 at 3:05am

Can anyone tell me how many different types of LNB's used around the globe? Thanks!

Oct 17^th, 2010 at 3:19pm

FYI....

I found 4 types for those that do not know.

Ku-band
C-band
Ka-band
X-band

May 13^th, 2011 at 2:20pm

As far as I know, India uses S-band ranging around 1500Mhz. for their DTH(Direct To Home) satelite service.

May 14^th, 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//

May 26^th, 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)

May 26^th, 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