[time-nuts] wtd: WWVB info
Donald
donvukovic at gmail.com
Thu Aug 6 03:03:05 UTC 2015
On 8/5/2015 6:44 PM, Jim Lux wrote:
>
> I'm not sure it would buy you much.. you'd have something running at
> 240kHz switching the inputs to the detector?
>
> It's MUCH easier to just digitize the 60kHz with a high resolution
> converter. And have a nice BPF in front of the digitizer.
>
> The tayloe/quadrature sampling detector (a key part of the Flexradio
> original design) is more convenient if you're making a direct
> conversion receiver that needs to tune up to 10s of MHz, since it
> allows you to use a slow ADC with lots of bits. It's basically a I/Q
> mixer and will take a lot more parts in total than just getting a
> 192ksps 24 bit converter.
Thanks for the numbers.
I was uncertain how to scale the sample rate for the I/Q.
Don
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