On 5/19/2019 6:28 AM, Joe Subich, W4TV wrote:
if the "effective" bandwidth
for CW is on the order of 100 Hz a CW signal right at the noise
in the 100 Hz "ear/brain filter" would be -14 dB in a 2500 Hz
wide SSB filter.
This estimate correlates well with my own that FT8 can work about 10 dB
deeper into the noise than CW with good radios and very good operators
on both ends. I've worked a lot of both modes.
On 5/19/2019 6:50 AM, Wes wrote:
FT8 reports negative SNRs number but we both know those are bogus.
Not if you read the definitions within the WSJT-X docs. Joe has done
that, and correctly interprets the numbers.
73, Jim K9YC
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