Re: Sensitivity - Was K4 Observations
Posted by
Tony Estep on
May 20, 2019; 4:31am
URL: http://elecraft.85.s1.nabble.com/K4-Observations-tp7651899p7651968.html
On Sun, May 19, 2019 at 12:06 PM Jim Brown <
[hidden email]>
wrote:
> ... 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....
>
================
For those who care about the relative communications efficacy of various
modes, here's a Joe Taylor document from the archives with some discussion
and analysis, which provides theoretical confirmation of the comments made
above by Jim and earlier by Joe W4TV.
http://physics.princeton.edu/pulsar/K1JT/EME_Florence_2008.pdfAs a side note, we all seen many occasions when FT8 or WSPR could decode
signals that were completely inaudible and invisible on a pan.
73, Tony KT0NY
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