Re: [Discuss-gnuradio] Setting tx_gain > 20 dB => no effect? (USRP2, XCVR2450)

[Jeffrey Lambert]

On 6/22/2010 5:34 AM, Sven Oliver Kreis wrote:
> Hi Josh,
>
> thanks a lot. You were right. I ran another test with amp 0.1 and this
> time it changed above 20 dB. Seems saturated.
>
> The sample mismatch is on purpose.
>
> My real purpose is to jam Zigbee communication between micaz nodes. So
> I don't need a very smooth sinus, but a strong signal which   disturbs
> the Zigbee Traffic between micaz nodes.

Yes, put an external amplifier on the USRP output.  You might be able to 
find a coaxial amplifier that can produce the power you will need from 
Mini-Circuits.

> So I will stay with ~20 dB and Amplitude 1. Or is there a way to get
> even more power out of it?
> Any suggestion to improve jamming is welcome :)
>
> Thx again
> Sven Oliver

~Jeff, K1VZX


--
~Jeffrey Lambert, K1VZX