I'm decoding K8R on 18.090 with S/N varying beween +6 and +9. The tones are clearly visible on widegraph and for most transmissions the signal appears to be clean. Some transmissions have "fuzz" or spead on the individual tones but the signal still decodes ok.
I experimented with different AGC settings to eliminate that as a factor but I found no correlation. K8R is barely moving my S meter off the zero stop when decoding at +9 so the "fuzz" artifact does not appear to be RX overload. I have made screen captures and should have wav files saved. I'll make them available on dropbox if there is any interest. 73, Andy, k3wyc
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