[Discuss-gnuradio] siggen above 40Mhz

[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/cswiger/thru_nyquist.jpg

About 44Mhz however it turns to random snow:

http://webpages.charter.net/cswiger/noise_above_44.jpg

--Chuck