[hpsdr] Computing power requirements

[Warren C. Pratt]

Jim,

I'll comment on a few things:

* Yes, PowerSDRmRX is multi-threaded and so it does use multiple cores.  
HOWEVER, the loading on all the threads is far from equal and clock rate 
is also quite important.

* Right now the application as released is 32-bit.  However, thinking 
ahead, I would recommend a 64-bit system.

* As we introduce new and more advanced features, using those generally 
requires more CPU power.  One characteristic of SDRs that is perhaps not 
broadly understood is latency --- for example the time between when RF 
hits your antenna and receive audio hits your ears.  A release, not too 
far in the future, will allow you to dramatically reduce the latency on 
your radio from its current levels.  HOWEVER, that will come at the 
price of using some additional CPU cycles.  So, not that you have to 
have the very fastest and hottest CPU; however, I'd encourage you to 
build-in some headroom for future advancements.

73,

Warren  NR0V