From: F4DTL@aol.com
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Date: Sat, 16 Oct 2010 18:36:05 EDT
To: rsgb_lf_group@blacksheep.org
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Subject: LF: F4DTL to ON7YD
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=20
Hello Rik,LF
=20
Because I had this diameter in PVC and especially to limit the losses  in=
=20
the coil.Less length of wire and of course a better Q factor.Unfortunately=
 =20
this afternoon I wanted to increase the power for a last test to 430W,it=
  was=20
raining and there is an spark between two coils and a beautiful  burns.Too=
=20
much voltage can be a problem or isolation of wires? I will repair it  wit=
h=20
news tests. I did not know that these diameters are more vulnerable to =20
losses in nearby object. Thanx for this information.
=20
If you want some pictures give your personal email Rick.
=20
F4DTL Nicolas JN18FP
=20
=20
=20
Dans un e-mail dat=E9 du 16/10/2010 15:36:50 Paris, Madrid (heure d'=E9t=
=E9), =20
Rik.Strobbe@fys.kuleuven.be a =E9crit :

Hello Nicolas,
=20
is there any particular reason you made a large diameter loading coil  ?
I recall a discussion (maybe 10 years ago) on this reflector where  the=20
outcome was that large diameter coils (to a certain extend) have  a better=
 Q,=20
but are also more vulnerable to losses in nearby object.
=20
73, Rik  ON7YD =20
=20



=20
=20
=20
=20

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<DIV>
<DIV>Hello Rik,LF</DIV>
<DIV>&nbsp;</DIV>
<DIV>Because I had this diameter in PVC&nbsp;and especially to limit the=
 losses=20
in the coil.Less length of wire and of course a better Q factor.Unfortunat=
ely=20
this&nbsp;afternoon I wanted to increase the power for a last test to 430W=
,it=20
was raining and there is an&nbsp;spark between two coils&nbsp;and a beauti=
ful=20
burns.Too much voltage can be a problem or isolation of wires? I will repa=
ir it=20
with news tests. I did not know that these diameters are more vulnerable=
 to=20
losses in nearby object. Thanx for this information.</DIV>
<DIV>&nbsp;</DIV>
<DIV>If you want some pictures give your personal email Rick.</DIV>
<DIV>&nbsp;</DIV>
<DIV><STRONG>F4DTL Nicolas JN18FP</STRONG></DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV>Dans un e-mail dat=E9 du 16/10/2010 15:36:50 Paris, Madrid (heure d'=
=E9t=E9),=20
Rik.Strobbe@fys.kuleuven.be a =E9crit :</DIV>
<BLOCKQUOTE   style=3D"BORDER-LEFT: blue 2px solid; PADDING-LEFT: 5px; MAR=
GIN-LEFT: 5px"><FONT     style=3D"BACKGROUND-COLOR: transparent" color=3D#=
000000 size=3D2 face=3DTahoma>
  <DIV>Hello Nicolas,</DIV>
  <DIV>&nbsp;</DIV>
  <DIV>is there any particular reason you made a large diameter loading co=
il=20
  ?</DIV>
  <DIV>I recall a discussion (maybe 10 years ago) on this reflector where=
=20
  the&nbsp;outcome was that large diameter&nbsp;coils (to a certain extend=
) have=20
  a better Q, but are also more vulnerable to losses in nearby object.</DI=
V>
  <DIV>&nbsp;</DIV>
  <DIV>73, Rik&nbsp; ON7YD&nbsp;&nbsp;</DIV>
  <DIV dir=3Dltr><FONT color=3D#000000 size=3D2   face=3DTahoma></FONT>&nb=
sp;</DIV></FONT></BLOCKQUOTE></DIV>
<DIV></DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
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