The title says it all -- Rick asked for it, and I did it this morning,
changing the frequency axis to log and moving labels around. I also
added data for the new IC7100, a do everything cheapie with a remote
head, just reviewed in July QST.
k9yc.com/TXPhaseNoise-1MHz.png
For the Field Day problem, look at the data around 200-300 kHz -- that's
what we run into when we run CW and SSB on the same band. There's 15 dB
difference between the IC7100 and the IC7600/TS590, and the K3 is
another 17 dB better than the best of those!
And, as I noted in an earlier post, this is only one part of the problem
-- there's also IMD on both TX and RX, clicks, audio distortion, and RX
phase noise. This stuff CANNOT be filtered -- it's all "in band."
Now I'm going to tackle the key click data.
73, Jim K9YC
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|