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From: "Chris" <c.ashby435@btinternet.com>
To: "RSGB LF Group" <rsgb_lf_group@blacksheep.org>
Date: Thu, 8 Oct 2009 10:32:32 +0100
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Subject: LF: ERP at LF
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Seems to me that measuring ERP at LF is a bit of a problem. On here I=
 have read comments referring to a stations ERP by various operators=
 : 'Estimate', 'Guess', 'Approx.', 'Reckon I'm fairly close to...', 'A=
pproaching' etc. Nobody REALLY knows exactly! Even Mike's book, 'LF To=
day - A guide to success on 136kHz', refers to certain 'estimates' hav=
ing to be made. The last sentence on the bottom of p81 just about sums=
 it up.
I don't know what the answer is, but it is clear that ERP at LF is far=
 more complex than at VHF/UHF etc. where 'full size' antennas are gene=
rally used.
Chris, G4AYT.

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<DIV><FONT face=3DArial size=3D2>Seems to me that measuring ERP at LF=
 is a bit of a=20
problem. On here I have read comments referring to a stations ERP by=
 various=20
operators&nbsp;: 'Estimate', 'Guess', 'Approx.', 'Reckon I'm fairly cl=
ose=20
to...', 'Approaching' etc. Nobody REALLY knows exactly! Even Mike's bo=
ok, 'LF=20
Today - A guide to success on 136kHz', refers to certain 'estimates'=
 having to=20
be made. The last sentence on the bottom of p81 just about sums it=20
up.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>I don't know what the answer is, but=
 it is clear=20
that ERP at LF is far more complex than at VHF/UHF etc. where 'full si=
ze'=20
antennas are generally used.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Chris, G4AYT.</FONT></DIV></BODY></HT=
ML>

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