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Re: [Discuss-gnuradio] Q. USRP2+RFX2400 performances on dynamic range, a
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From: |
Eric Blossom |
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Subject: |
Re: [Discuss-gnuradio] Q. USRP2+RFX2400 performances on dynamic range, and decim |
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Date: |
Thu, 21 May 2009 14:21:34 -0700 |
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User-agent: |
Mutt/1.5.18 (2008-05-17) |
On Thu, May 21, 2009 at 08:23:31AM +0200, Yc Park wrote:
> Hi guys,
>
> Using my usrp2+RFX2400 and the GRC with gnuradio 3.2svn,
> I've recorded a wimax signal out of a RF signal generator.
>
> However, I found some issues with the result and ask you guys for some
> help.
> (I tried to search on these issues, but only found some about usrp.)
>
> 1) The biggest problem is the dynamic range of the signal:
> The recorded signal showed only about 25dB between the in-band spectrum
> level(-25dBm/RBW) and the noise floor (-50dBm/RBW) while the original
> signal shows at least 45dB.
What gain setting are you using?
Have you tried lowering it?
Eric