Re: DM95
James Duffey
I was referring to the Olathe-Amarillo path. Tropo losses rise steeply beyond 300 miles. Six and two are not too different with respect to the plot below. Meteor scatter starts to overcome tropo at about 350 miles, depending on station capability. WSJT-X helps, but at those distances MSK144 is probably better than FT8 or FT4 for that path. Typical modest station capability on 2M is about 200dB, less on 6M roughly by the difference in antenna gains.
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The difference in large part is due to the height of the scattering media; for troposatter it is about 35,000 ft or below, for meteor scatter is it 60 miles or so. - Duffey James Duffey KK6MC Cedar Crest NM
On Sep 13, 2019, at 13:42, Steve London <n2ic@...> wrote:
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