[hpsdr] Pico-ITX as possible processor for HPSDR?

[Lyle Johnson]

>> The new Yaesu FT-450 is an SDR although they don't market it as such.
>> What they do say is the they digitize the signal at the IF stage
>> and do all further processing including demodulation and filters
>> digitally.  Sound like SDR to me.

All SDR is DSP, though not all DSP is SDR :-)

>> The FT-450 uses an Analog
>> Devices "Blackfin".  The neat thing about the Blackfin is that (1)
>> the hole thing sell for between $14 and $28.  Compared to a
>> "pico ITX" the AD chip is almost free.
> 
> What about the 16 bit DSP limitation of the Blackfin? The RISC CPU of
> the Blackfin is 32 bits but the DSP engine is only 16. That sucks for
> dynamic range and you might as well then not bother with a 24 bit ADC.

I sort of like the idea of using a TMS320C6726 DSP engine myself.  Fast, 
32 bit floating point, multiple execution units, low power, and only $21 
in singles,  ...

Oops, sounds like Sasquatch!

73,

Lyle KK7P


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