zac79x
Newbie level 3
First hello to all, it should be my first post here...
I'm "trying" to design a GSM 900 repeater with this scheme:
directive antenna --> LNA --> AMP+AGC --> PA --> omni antenna
directive antenna <-- AMP <-- AMP+AGC <-- omni antenna
The antennas are the same, i'm using diplexers on every side.
So the questions:
How much total gain for the upper side (and bottom side) amps, if i want a functioning repeater for a weak outside signal ?
What power outputs should i use on the PAs ?
Some papers or links to informations ?
I'm "trying" to design a GSM 900 repeater with this scheme:
directive antenna --> LNA --> AMP+AGC --> PA --> omni antenna
directive antenna <-- AMP <-- AMP+AGC <-- omni antenna
The antennas are the same, i'm using diplexers on every side.
So the questions:
How much total gain for the upper side (and bottom side) amps, if i want a functioning repeater for a weak outside signal ?
What power outputs should i use on the PAs ?
Some papers or links to informations ?