Thursday, November 25, 2010

LNB (low –noise block)


LNB stands for low noise block. It is device on the front of a satellite dish that receives the low level micro-wave signals from the satellite then amplifies and changes the signal to a lower frequency and sends them to a cable. In order to minimize the losses in coaxial cable that carry dish antenna signals to control room, the frequency are first translated to a lower frequency range. This is done by using LNB. LNB is connected at the front of dish, LNB receives the low level micro-wave signals from the satellite and amplifies it, changes the signal to a lower frequency and sends the signal to cable. Satellite broadcast mainly in the range 4 to 21 GHZ.
The extra LNB is also added in a single system satellite dishes in order to receive programmes from additional satellites. Eb-Ce   provides apical telecom consulting LNB.

No comments:

Post a Comment