need a Line Amplifier circuit for DVB sattellite receiver

Status
Not open for further replies.
K

kamilia

Member level 1
Joined
Jan 30, 2002
Messages
41
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Activity points
215
req:sattellite line amp.

Hi
I need for DVB sattellite receiver a Line Amplifier circuit. :?

best regards
 

You can easily build one with very few components with a monolithic amp of Minicircuits (MAR, ERA) or HP/Ag_ilent (MSA, INA) for a few $.
 

But using MMIC amplifier may not be useful due to their high Noise Figure.
Instead of this , you can build transistor amplifer with very low noise in the frequency range 900-2150MHz.
GL
 

A DVB satellite receiving system starts with an LNB , with about 50 dB gain. The following cable attenuates these signals, and when it is too long you need a satellite line amplifier. So the easily reachable 3 - 4 dB noise figure is more than enough
 

Re: req:sattellite line amp.

Any one has one circuit example for this subject ? (LNB inline amplifier) . (950-2150MHZ)

I want to use 2sc3355 transistor for this amplifire circuit and smt components , surely .
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…