[hpsdr] HPSDR / PowerSDR hardware selection

[Don N6MCE]

I upgraded my laptop with Pentium M 1.5 GHz to 2GB RAM from 0.5,
and to 7200 RPM 100 GB Hitachi HDD from 5400 RPM 80 GB.

CPU load dropped in half, HDD access time dropped noticeably.
I could load more instances of more programs while doing significant 
time critical processing, watching on external monitor either
a) DVD movie or
b) OnAir.com test simulation of their USB ATSC HDTV tuner (a commercial 
SDR I suppose).

Even with increased multitasking loading, response was quicker, and
With no dropouts, whereas before I would get dropped frames and have to 
unload programs.  A very big change.

Hope this helps someone.

73
Don N6MCE

PS.  Sorry for being too slow to yet report performance of software for
Penelope & OJ, much less Winrad.

Alberto I2PHD wrote:
> ***** High Performance Software Defined Radio Discussion List *****
> But, for receive only, you can manage the 6 
> MB/sec USB data flow from a Perseus sampling at 1 Ms/sec using a laptop 
> with a Pentium M clocked at 1.5 GHz and with 512 MB of RAM, with 
> absolutely no buffer under/overruns and no audio interruptions, under 
> Windows XP. Audio latency on the order of 150ms.
> I know that it can be done, as Winrad can do that.
> 
> 73  Alberto  I2PHD


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