[hpsdr] New RF Digitizer

[Philip Covington]

On 11/14/06, Nyall Davies <nyalldavies at ukonline.co.uk> wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
> Hello Ahti,
> 130 MHz compared with 100 gives another 1.13 dB of processing gain.
> or compared with SDR-IQ at 67 MHz   2.87 dB
> I should say that the 78.2 dB SN figure used for the LTC2207 is the
> "headline" figure and is the best achievable. Depending on the mode used and
> input frequency may not be as good as that.
> The comparison between SDR-IQ and HPSDR shows how dependant we are on the
> performance of the A/D to squeeze the odd dB.
> I see Phil N8VB has given some other advantages of the HPSDR
>
> 73 Nyall G8IBR

Hi Nyall,

We will probably run the LTC2208 at 125 MHz so we don't have the
expense of a special oscillator.  Off the shelf 125 MHz oscillators
are easier to come by.  The other possibility would be running it at
133.33 MHz.

Phil N8VB

 1163520329.0