[Elecraft] P3

[Bill W4ZV]

Kok Chen wrote:
> 
> 
> Spectrograms, such as "waterfalls," make use of your eye-brain system to
> help find signals that are below the noise level, especially when signals
> are drifting and don't allow temporal averaging methods.
> 
> <SNIP>
> 
> With the addition of some special filtering, you can make a waterfall see
> even deeper into the noise when the signal is not drifting. 
> 

I'd like to see some specs for the P3 to know that it really has the
sensitivity to do this.  The IF OUT mod regains ~10 dB of the signal lost in
the original design but I believe that still leaves ~7 dB that may be lost,
according to Jack Smith's measurements:

http://cliftonlaboratories.com/elecraft_k3_and_panadapters.htm#What_then_is_the_transfer_gain_of_the_K3_

73,  Bill

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