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<p>Empirically I agree with that statement, having lived for 17
years until recently in a location about 200 ft from salt water
and about 50 ft above (+/- tides). It was on an inlet from Puget
Sound, not a marsh. The trees in between were mostly evergreens,
not deciduous. HF propagation with a multiband vertical was much
better than I expected and I didn't really try to explain it but I
was able to increase my DXCC totals from 260 to 309 while living
there and typically did not run more than 100 watts (I also
achieved QRP DXCC from that location during better solar
conditions than currently exist). <br>
</p>
<p>It's been several years since I have seen relevant data but I
recall that the effect of trees isn't very great at HF compared to
UHF and microwave frequencies and the radiated signal can go
through the trees rather than up and over.<br>
</p>
73, Bob N7XY<br>
<br>
<div class="moz-cite-prefix">On 4/12/18 5:21 PM, Robert Bruninga
wrote:<br>
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Everyone
says a salt water marsh is an excellent ground for low
angle radiation from an HF vertical.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">But
then the marsh is 40 feet below surrounding terrain about
200’ away AND then add 80 feet of trees, and so what good
is low angle radiation if it has to go up and over trees?</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Anyone
seen an answer to this?</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Bob</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span></p>
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