Logo

Satellite Internet Forum.
Please note that this forum is now READ ONLY and closed for login and changes
The new forum is here Space and Satellite Communications forum

Welcome, Guest.
Welcome to this satellite broadband discussion forum. Wherever you are and whatever your problem we are here to help each other. Connecting to the internet via satellite is not always easy but is critically important to those in remote places or with poor terrestrial infrastructure. Both service providers and customers are encouraged to contribute. Read the Forum rules.
      Satellite internet forum          

LNB Types?

(Read 5289 times)
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!
Back to top
 
 
IP Logged
 
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
Back to top
 
 
IP Logged
 
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.
Back to top
 
 
IP Logged
 
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//
Back to top
 
 
IP Logged
 
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)
Back to top
 
 
IP Logged
 
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   5.8506.425 3.6254.200
Extended C-Band 5.8506.725 3.4004.200
INSAT Super-Extended C-Band 6.7257.025                                         4.5004.800
Russian C-Band     5.9756.475 3.6504.150
LMI C-Band 5.72506.025 3.7004.000
Back to top
 
 
IP Logged