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Re: [Discuss-gnuradio] usrp_* gains on Mac OS X much greater than on Lin


From: Matt Ettus
Subject: Re: [Discuss-gnuradio] usrp_* gains on Mac OS X much greater than on Linux
Date: Wed, 21 Dec 2005 18:46:15 -0800
User-agent: Mozilla Thunderbird 1.0.7-1.1.fc4 (X11/20050929)

Jonathan Jacky wrote:
> 
> I've observed something weird running some USRP programs on Mac OS X:
> the gains in effect in usrp_siggen, usrp_oscope and usrp_fft seem
> unreasonably large.  I only get reasonable looking output (from
> usrp_siggen) and input (with usrp_oscope and usrp_fft) with -a100 or
> less, otherwise the output (or input) saturates or wraps around in a
> very bizarre way.

I think you are running into endianness issues here.  That would give
you an apparent gain of 256.

Matt





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