[Elecraft] OT: WSPR SNR to CW real world conversion

[Jim Brown]

On 7/20/2018 10:49 AM, Allan Zadiraka wrote:
> I don't recall where this table of Relative Sensitivity of Communication
> Modes came from but for what's it worth::

I would estimate that FT8 is 6-10 dB better than CW with very good CW 
operators on both ends. Last I heard from K1JT, JT65 is a few dB better 
than FT8, and JT9 a few dB better than JT65.

I can quote from this experience on 160M with JT65 and FT8. I'm near San 
Francisco. For most of the winter of 2016-17, in pursuit of the last 
three states I needed for QRP 160 WAS, I let JT65 run all night and kept 
a record of all the stations I decoded. I logged stations from all 
continents, including a dozen EU stations, and several times a week, 
VK6IR (about 8,000 miles). I also logged stations from every state 
except VT (one I needed) and most VE provinces.

This past winter, there was virtually no JT65 activity, replaced by FT8. 
I heard a lot east coast stations working EU, but I didn't log a single 
EU station.

73, Jim K9YC