[luau] gnuradio & linrad

[tongaloa at atl.org]

SO many good people writing so much neat stuff for LInux...

Wonder if anyone on this list is playing with gnuradio or
linrad? If unfamiliar, gnuradio is a software defined radio
project and is far enough along enable HDTV reception
Imagine, off the air or cable,  HDTV recording.

linrad is primarily aimed at weak signal reception with guys
communicating successfully by bouncing low power (100W)
radio signals off the moon.

Both will work with your PeeCee soundcard but for HDTV,
gnuradio needs an A/D that can handle the bandwidth of
the HDTV signal.

Have gotten both to compile and run on the Fujitsu A1010
laptop here. Soundcard seems a little noisy but have not
compared to anything else. There are soundcards available
with 24bits and 96kHz sample rate, so a decent radio for
modes with bandwidth up to 40kHz or so can be had for not
many $.

I'm particularly interested in the hardware aspects of
getting the radio signals digitzed.

-bob