Re: [Discuss-gnuradio] siggen above 40Mhz

2005-12-09 Thread Eric Blossom
On Fri, Dec 09, 2005 at 06:52:26PM -0500, cswiger wrote: > Is the usrp_siggen.py guarenteed to work up to about 64Mhz? > > I'm getting some screwy behavior around 44Mhz. Will look at > it closer this weekend. +/- 44 MHz is the highest we can tune the DUC in the AD9862. FWIW, we return False if yo

[Discuss-gnuradio] siggen above 40Mhz

2005-12-09 Thread cswiger
Is the usrp_siggen.py guarenteed to work up to about 64Mhz? I'm getting some screwy behavior around 44Mhz. Will look at it closer this weekend. Here's a nice plot of a freq sweep past the 32Mhz receiver nyquist frequency, clearly showing the signal flipping 180 deg: http://webpages.charter.net/c