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From: Laurence KL1X <hellozerohellozero@hotmail.com>
To: "rsgb_lf_group@blacksheep.org" <rsgb_lf_group@blacksheep.org>
Date: Thu, 23 Aug 2007 04:38:39 -0800
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Subject: LF: : aqc to singapore clip- more
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Hi Chaps - much better last night, ie constructive against destructive on D=
CF39....peek signals were 5dB above those on the 18th - but I see that s/n =
is necessarily better.
=20
Im sitting here in a massive tstorm at the moment with the antennae disconn=
ected - huge bolts are landing within a few hundred meters. Visibility is o=
nly 100m and I can hardly hear myself with the vertical rain - Sheri and I =
shout across the room to be heard over the thunderous rain.
=20
I modded the 1:1 isolation transformer for the PAORDT probe interface based=
 on my tests using the AIM4170 - and sweeping/plotting the losses and VSWR =
etc  - it now just has 4 turns on the primary and secondary on something cl=
ose to type 77 material - this allows me to use it 100Khz all the way up to=
 15Mhz without serious loss at the top end which was happening before. Ive =
decided the AIM unit is a marvelous tool for building transformers and look=
ing at what the heck is going on for LF and HF
=20
I also measured the receive strength of the two probes which are within 2Om=
 of each other -one is some 20ft higher than the other. Using DCF39 on fade=
 out and a mix of Speclabs and Argo Ive determined that theres no advantage=
 to the additional height  and only the spectre of additional attention fro=
m passing tstorms. Im my favor I can take down the highest probe in a littl=
e over 10 secs! -well to below target height anyway. Of course on 10 and 15=
Mhz the space diversity affects really show even on this short base line
=20
Too many "I's" in this email - apologies. If these blessed storms and assoc=
iated thumps goes away Ill listen again this evening in the normal slots. 1=
36.317 - 319 KHz tonight.
=20
Laurence KL1X aka 9V1 LF
Rather soggy Singapore.
=20
=20
=20
=20


From: hellozerohellozero@hotmail.comTo: rsgb_lf_group@blacksheep.orgDate: W=
ed, 22 Aug 2007 18:27:08 -0800Subject: LF: aqc to singapore clip


Dont know if this is going to work but heres what the station here picked u=
p a couple of days ago from G3AQC tests. Conditions were up again last nigh=
t peaking for long periods so hopefully as we get more nighttime length we =
will be seeing more signals. Its about 10,870Kms from Lauries to here. Laur=
ence 9V1LF

See what you=92re getting into=85before you go there See it!=20
_________________________________________________________________
Find a local pizza place, movie theater, and more=85.then map the best rout=
e!
http://maps.live.com/default.aspx?v=3D2&ss=3Dyp.bars~yp.pizza~yp.movie%20th=
eater&cp=3D42.358996~-71.056691&style=3Dr&lvl=3D13&tilt=3D-90&dir=3D0&alt=
=3D-1000&scene=3D950607&encType=3D1&FORM=3DMGAC01=

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<body>Hi Chaps - much better last night, ie constructive against destructiv=
e on DCF39....peek signals were 5dB above those on the 18th - but I see tha=
t s/n is necessarily better.<BR>
&nbsp;<BR>
Im sitting here in a massive tstorm at the moment with the antennae disconn=
ected - huge bolts are landing within a few hundred meters. Visibility is o=
nly 100m and I can hardly hear myself with the vertical rain - Sheri and I =
shout across the room to be heard over the thunderous rain.<BR>
&nbsp;<BR>
I modded the 1:1 isolation transformer for the PAORDT probe interface based=
 on my tests using the AIM4170 - and sweeping/plotting the losses and VSWR =
etc &nbsp;- it now just has 4 turns on the primary and secondary on somethi=
ng close to type 77 material - this allows me to use it&nbsp;100Khz all the=
 way up to 15Mhz without&nbsp;serious loss at the top end which was happeni=
ng before. Ive decided the AIM unit is a marvelous tool for building transf=
ormers and looking at what the heck is going on for LF and HF<BR>
&nbsp;<BR>
I also measured the receive strength of the two probes which are within 2Om=
 of each other -one is some 20ft higher than the other. Using DCF39 on fade=
 out and a mix of Speclabs and Argo Ive determined that theres no advantage=
 to the additional height&nbsp; and only the spectre of additional attentio=
n from passing tstorms. Im my favor I can take down the highest probe in a =
little over 10 secs! -well to below target height anyway. Of course on 10 a=
nd 15Mhz the space diversity affects really show even on this short base li=
ne<BR>
&nbsp;<BR>
Too many "I's" in this email - apologies. If these blessed storms and assoc=
iated thumps goes away Ill listen again this evening in the normal slots. 1=
36.317 - 319 KHz tonight.<BR>
&nbsp;<BR>
Laurence KL1X aka 9V1 LF<BR>
Rather soggy Singapore.<BR>
&nbsp;<BR>
&nbsp;<BR>
&nbsp;<BR>
<BR><BR><BR><BR>&nbsp;<BR>
<BLOCKQUOTE>
<HR id=3DEC_stopSpelling>
From: hellozerohellozero@hotmail.com<BR>To: rsgb_lf_group@blacksheep.org<BR=
>Date: Wed, 22 Aug 2007 18:27:08 -0800<BR>Subject: LF: aqc to singapore cli=
p<BR><BR>
<META content=3D"Microsoft SafeHTML" name=3DGenerator>
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.ExternalClass P
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Dont know if this is going to work but heres what the station here picked u=
p a couple of days ago from G3AQC tests. Conditions were up again last nigh=
t peaking for long periods so hopefully as we get more nighttime length we =
will be seeing more signals. Its about 10,870Kms from Lauries to here.<BR>&=
nbsp;<BR>Laurence 9V1LF<BR><BR>
<HR>
See what you=92re getting into=85before you go there <A href=3D"http://newl=
ivehotmail.com/?ocid=3DTXT_TAGHM_migration_HM_viral_preview_0507" target=3D=
_blank>See it!</A> </BLOCKQUOTE><br /><hr />Find a local pizza place, movie=
 theater, and more=85.then map the best route! <a href=3D'http://maps.live.=
com/default.aspx?v=3D2&ss=3Dyp.bars~yp.pizza~yp.movie%20theater&cp=3D42.358=
996~-71.056691&style=3Dr&lvl=3D13&tilt=3D-90&dir=3D0&alt=3D-1000&scene=3D95=
0607&encType=3D1&FORM=3DMGAC01' target=3D'_new'>Find it!</a></body>
</html>=

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