Re: [Discuss-gnuradio] Amplifier

[wayne roberts]

You should know the gain of your amplifier.
I would suspect that OpenBTS has USRP output power set to high level for direct antenna connection.    This is probably too much for your amplifier.
Try reducing your USRP output power to minimum level, then slowly increase it while observing your amplifier output signal on another receiver.  Be careful of signal overload of your receiver too.

On Wed, May 9, 2012 at 11:44 AM, Cristian Rougier <address@hidden> wrote:

Hello, i'm working in a private project with USRP 1 and OpenBTS on PCS 1900MHZ.

Currently im working with chinesse (Ledmate.net) 25 dbm amplifier and duplexer for pcs 1900,
this works, but i having problems in some areas, i can't register any phones.

Can anybody tell me what is the best amplifiers brand for use in this project ?,
i need to full extend the coverage area.

My current configuration is


USRP1+clock tamer > PCS 25dbm amplifier > PCS duplexer > antenna (yagi or omni 9dbi)


I need any other component? i'm planing to change the amplifier, what is the best and
what better power for full extent coverage and work fine?

I wait your news

Thanks in advance

Regards

Cristian

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