I did the same sort of thing comparing the 2 channel 1Gs/s roach boards and the 4 channel 1.5Gs/s PX15500's when every one was ranting about the roach boards and how cheap they where. It worked out a persample dollar of a 3rd less or so for the more expensive one.
What it really comes down to is, what do you really need, and will you ever have any need of the capabilities. And more importantly do you have the could hard cash to get the more "expensive one" Bruce ________________________________________ From: discuss-gnuradio-bounces+bruce.stansby=postgrad.curtin.edu...@gnu.org [discuss-gnuradio-bounces+bruce.stansby=postgrad.curtin.edu...@gnu.org] on behalf of Marcus D. Leech [mle...@ripnet.com] Sent: Friday, 9 April 2010 10:39 PM To: Philip Balister; GNURadio Discussion List Subject: Re: [Discuss-gnuradio] Progress on Sheeva -- actually got a half-way functional flow-graph working > On 04/08/2010 10:30 PM, Marcus D. Leech wrote: >> http://www.sbrac.org/files/audioSIDnoGUI.py >> http://www.sbrac.org/files/audioSIDnoGUI.grc >> >> It can only handle two channels, and it takes 78% of the CPU while doing >> it, but it does work! > > How about calculating a $ per sample number? > > Philip > > Hmmm, let's see. The Sheeva Plug was $99.00 The USB Audio subsystem I had to buy for it was $79.00 So, $178.00 divided by 96000 samples/sec That's 0.2cents/sample/sec Let's see how that scales using a USRP1 and a "mildly pimped out" PC USRP1 is $700 PC is probably another $700 So, $1400.00 divided by 8megasamples/sec That's roughly 0.02cents/sample/sec The USRP1 + PC is roughly an order-of-magnitude better value, when looked at in that way. -- Marcus Leech Principal Investigator Shirleys Bay Radio Astronomy Consortium http://www.sbrac.org _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
