I finally got around to repeating a few measurements using with the new
K3SYNA boards. I've added the results near the beginning of
P3_Spectrum_Measurements.pdf
There's also a measurement of an un-keyed, unmodulated carrier.
Executive summary -- the screen of the P3 can display only 80 dB of
dynamic range, and within that displayed range, I cannot see any
difference in signal bandwidth between the new synth board and the old
one. There ARE differences, and I've seen measurements showing
significant reduction in phase noise, but it's another 10-20 dB down
from the peak.
It would be possible to see those differences by lowering the P3
reference level, letting the upper 20 dB of dynamic range run off scale.
I've done that with the new K3SYNA boards, but did not do so with the
older K3SYN, so I have noting to compare to. :)
Note that the only new measurements in the file are those showing the K3
steady carrier and a K3 sending dits at 25W for comparison with older data.
73, Jim K9YC
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