From: DK7FC <73dk7fc@googlemail.com>
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Date: Mon, 22 Dec 2014 18:31:24 +0100
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Subject: Re: LF: Re: Japan on 475 kHz.
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Am 22.12.2014 17:17, schrieb Guyé André:
> [...]
> I agree with you, Mal. For DX, the Propagation on both MF BANDS 160 
> and 630 meters similar. The only diference is the ERP power, because 
> on 630 m the standard ham antennas have not 100 % of efficiency, HI.

> Propagation on both MF BANDS similar
> de MAL/G3KEV

Never ever! I saw regular WSPR decodes with 2W TX power (if it is true!) 
on 160m between EU and VK. No chance on 630m except some  very very very 
very very very very very very very very very very very very very very 
very very very very very very very very very very very very very very 
rare events like prooved by F6CNI :-)
I've put out several 10000 WSPR sequences now, with decent power. Best 
distances were to the US east coast, TF, EA, upper LA and near Moscow. 
Not a single one above 2500km over land.
And most amateur antennas are not 100% efficient on 160m as well. But 1W 
ERP is possible on MF for most i assume. In more than 2 years we saw now 
that WSPR from EU does not propagate farer than 2000 km, except some TA 
detections, i.e. mostly water on the path. However it is a challenge to 
leave detections in 2000 km over land. And Japan is about 9000 km over 
land, from here, or France or UK.
So let's hope for the very rare events. Better try LF instead, no choke :-)

73, Stefan

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Am 22.12.2014 17:17, schrieb Guyé André:
<blockquote cite="mid:5A42D7F671FE4DBEAEAD33E87D02E740@F6CNIHPg7"
 type="cite">
  <div dir="ltr">
  <div
 style="font-size: 12pt; font-family: 'Calibri'; color: rgb(0, 0, 0);">[...]
  <div align="justify"> </div>
  <div align="justify">I agree with you, Mal. For DX, the Propagation
on both MF BANDS 160 and 630 meters similar. The only diference is the
ERP power, because on 630 m the standard ham antennas have not 100 % of
efficiency, HI.</div>
  </div>
  </div>
</blockquote>
<br>
<blockquote cite="mid:5A42D7F671FE4DBEAEAD33E87D02E740@F6CNIHPg7"
 type="cite">
  <div dir="ltr">
  <div
 style="font-size: 12pt; font-family: 'Calibri'; color: rgb(0, 0, 0);">
  <div>Propagation on both MF BANDS similar</div>
  <div>de MAL/G3KEV</div>
  </div>
  </div>
</blockquote>
<br>
Never ever! I saw regular WSPR decodes with 2W TX power (if it is
true!) on 160m between EU and VK. No chance on 630m except some  very
very very very very very very very very very very very very very very
very very very very very very very very very very very very very very
very very rare events like prooved by F6CNI :-)<br>
I've put out several 10000 WSPR sequences now, with decent power. Best
distances were to the US east coast, TF, EA, upper LA and near Moscow.
Not a single one above 2500km over land.<br>
And most amateur antennas are not 100% efficient on 160m as well. But
1W ERP is possible on MF for most i assume. In more than 2 years we saw
now that WSPR from EU does not propagate farer than 2000 km, except
some TA detections, i.e. mostly water on the path. However it is a
challenge to leave detections in 2000 km over land. And Japan is about
9000 km over land, from here, or France or UK.<br>
So let's hope for the very rare events. Better try LF instead, no choke
:-)<br>
<br>
73, Stefan<br>
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