[hpsdr] ISD Theory References?

[Ahti Aintila]

On 31/08/06, Rob Frohne <frohro at wwc.edu> wrote:
> Ahti, your circuit seems like it should give a lot better noise figure.
> If you take an SDR-1000, and do the same measurement with it, it seems
> to me you should get roughly a noise level of about -160dbm.  (I assume
> you can roughly hear a 1uV signal into 50 ohms with a 2.3 kHz bandwith
> to get this.)  I assume you have measured this?  Is this what you get?
>

Hi Rob,

I really expect less than -160 dBm/11.7Hz when everything is properly
done. Now my temporary breadboard layout prevents me from seeing the
whole truth.

73, Ahti OH2RZ

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