On Tue,11/11/2014 2:33 PM, Joe Subich, W4TV wrote:
PSK31 on the other hand *can not* withstand *any*
compression without significant close-in IMD.
I don't know where you got the idea that I was suggesting compression
for PSK31. My testing with pink noise is intended to simulate speech,
and I tested with and without compression.
It's raining, which stops antenna work, so I set up PSK31 measurements
this afternoon. Here's a link to the data. Note that I used PSK-D mode
-- internally generated by the K3.
http://k9yc.com/P3SpectrumMeasurementsSlides.pdf
Note that, except at full power, PSK31 is significantly narrower than CW.
73, Jim K9YC
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