[hpsdr] QSD gain and noise.

[Ramakrishnan Muthukrishnan]

On 9/27/07, Philip Covington <p.covington at gmail.com> wrote:
>
> I think the 20 dB increase in NF for the F5K has been misquoted.
> Before now, the only data point we had was from screen captures of
> your beta F5k which shows approx 10 dB increase in NF from 14 to 50
> MHz.  You also indicated that considerable hand tuning of the circuit
> was done to improve the QSD from beta units to the production units.
>
> Any which way it shows the QSD can be improved (judging from the
> considerable improvement between the SDR-1000 and the F5K) and more
> work needs to be done.

Is there any schematic available for F5K ? I could find only the SDR1K
schematics on the Flex website. Just curious to know what is under the
hood.

Ramakrishnan, VU3RDD

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