[hpsdr] Hpsdr Digest, Vol 18, Issue 14

[Philip Covington]

On 8/14/07, Philip Covington <p.covington at gmail.com> wrote:
> On 8/13/07, Chris Albertson <chrisalbertson90278 at yahoo.com> wrote:
>
> > Someone complained that 16-bits is not enough dynamic range but we
> > should all remember that a 16-bit machine can handle numbers of any
> > size just like we can multiply large numbers using pencil and paper one
> > digit at a time 16-bit computers can process 64 or 32 bit numbers 16
> > bits at a time.
> >
>
> Yeah, yeah, yeah... I can do 32 bit DSP with a 4 bit processor...
> that's not the point.  I am not convinced that the Blackfin is going
> to be fast enough for use at a reasonable IF because of its 16 bit DSP
> engine even running it at 400 or 600 MHz.
>
> What is the IF into the ADC in the FT-450?
>
> Phil N8VB
>

Ok, as I suspected, the IF of the FT-450 is a measly 24 kHz.... not
very impressive with that 400 MHz Blackfin is it?

<http://www.hamradio.co.uk/pdf/FT-450.pdf>

Phil N8VB

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