Elecraft P3

[IK4EWX]

This morning I wanted test my P3 - I have mounted a10mhz inverted see antenna, that I use from some days, and wanted be sure about P3 signal strength  precision.
I have an HP8640A and a Racal 9914 ovenized counter.
I tested the K3S+P3 with signals starting at -135dBm up to -73dBm (S9).
I thought that the P3 is a great weapon for doing and contesting.
Now, after seeing the absolute precision of the P3 at every signal level I can say that it is a real measurement instrument, a kind of real spectrum analyzer.
Thanks Wayne Burdock & Co for your great work.
Ian IK4EWX
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[Jim Brown-10]

On 9/3/2017 2:46 AM, Gian Luca Cazzola wrote:
> Now, after seeing the absolute precision of the P3 at every signal level I can say that it is a real measurement instrument, a kind of real spectrum analyzer.

Indeed it is, Ian.  And superior in many ways to very expensive lab
equipment, particularly in its frequency resolution. And the SVGA, which
does an even higher resolution FFT, significantly improves that
resolution.  To see examples of how it can be used as a test instrument,
see http://k9yc.com/FTDX5000_Report.pdf

Note also that even very inexpensive modern SDR receivers have excellent
spectrum analysis capabilities, but, like the K3/P3, must be properly
calibrated. See

k9yc.com/KillingRXNoiseVisalia.pdf

73, Jim K9YC

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[IK4EWX]

Many thanks Jim, I have seen the two very interesting reading and this
evening will read them.



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