Brian,
Not a goofy idea at all, the P3 can be used in that fashion, as can any
SDR receiver that covers the frequency range that you want to investigate.
73,
Don W3FPR
On 2/19/2014 10:27 PM, Brian Alsop wrote:
It occurred to me that the P3 might be made into a decent 200KHz wide
RF spectrum analyzer (note analyzer, not display) with the addition of
N trace averaging (n, infinite).
I use my K3 as test gear as well as for operating. With an elementary
sweep generator, K3/ROCKY almost works as an RF spectrum analyzer if
it only ROCKY could average sweeps.
SPECTROGRAM/Sweep generator does work fine if you're interested in AF
stuff. SPECTROGRAM has a user settable integration time. Compared to
a noise generator, one can pick up another 20db of "skirts" with a
clean swept signal. I've found sweeping in the range of 1-10 seconds
over sizable chunks of spectrum quite practical. Integration times of
10-100 seconds could produce quite very useable display. Substitute
SPECTRUM LAB for SPECTROGRAM and things really get interesting. One
can dump of the Fourier Transform bin data in sub-Hz intervals if you
want for plot comparisons or math manipulation.
Since the P3's IF can be set to anything between 455KHz to about 30
MHz, one wouldn't need the K3. Just a test jig, sweep generator and
P3. Sweep generator signals are way more than adequate to drive the P3.
Goofy idea?
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