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Date: Wed, 03 Jan 2018 19:27:05 +0100
From: DK7FC <selberdenken@posteo.de>
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References: <CA+DS1VKxM2bnhta-WJk_JpbPgn2Z6W_B9LkWzW_HvnVo_ijUdQ@mail.gmail.com> <1UQM1xKBnM.2CpgvqV13Q1@optiplex980-pc> <cc10219e-6d75-063b-f149-3d8947eacf53@abelian.org> <FAC9E5CB2F014794AA5E1B1F257D0FE8@DELL4> <5A4CF0CB.70904@posteo.de> <5D9BF36F6EF04DD595D9907A7C8009D7@DELL4> <5A4D013C.9020809@posteo.de> <5ad1e784-fde5-d3ab-7f6a-a2dc38e3e21c@abelian.org>
In-Reply-To: <5ad1e784-fde5-d3ab-7f6a-a2dc38e3e21c@abelian.org>
Subject: Re: LF: W4DEX EbNaut in CT
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Am 03.01.2018 19:01, schrieb Paul Nicholson:
> > http://abelian.org/vlf/tmp/ss100315a.png
>
> Gosh, 3 fT was a huge signal!   Now it is possible to decode
> messages from 0.03 fT.
As far as i can remember you reported up to 9 fT from my kite 
transmissions. That was with the 300m vertical.
Today i would do many things differnt than 2010! Not only the modes and 
frequency stability. First i would buy a stronger generator! I struggled 
with 350W or so... Crazy...

> We should think about ways to encourage more interest in VLF.
> I suspect that not many amateurs are aware of the activity.
Exactly this would be one of the important steps in 2018 if we want to 
build up regular VLF operation. Articles in radio literature. But this 
is not my skill. Easier to wind a 1 H coil instead...

> Chatting with a colleague at work the other day, a radio ham,
> he had no idea that people were operating at VLF.
You are working? I thought you're doing radio stuff all the day, almost 
like me :-)

> There are about a dozen major amateur radio journals, but as
> far as I know, none have carried any articles about VLF.
RN3AUS has written a large article about VLF! Just 2 months ago: 
http://rn3aus.narod.ru/VLF-QSO-Radio2017.djvu

> I would have thought that the big LF players at least, would
> be interested.  Certainly those that have had a go have found
> great success and in most cases they already have suitable
> antennas and they know how to wind loading coils and build
> hefty amplifiers.
...it is a total mistery for me why coil winding is such a terrible 
imagination for some. It seems to be the largest obstacle...

> Now I'm half tempted to write an article, but I can only write
> about receiving.
Which is the first step to do on VLF anyway.
In the German CQDL magazine i'm reading each month about "fun with QRP", 
"compromise antennas for limited space"... You can see 6 year old girls 
touching a CW key (do they try to suggest that they will become 
_regular_ _active_ hams in a few years????)
But actually there are many reagions where people have a lot of space to 
hang up large antennas. So there should be articles for people without 
space limitations too.
I guess that still > 50% of the hams think that 160m is "top band".
Not ideal for us.

73, Stefan

>
> -- 
> Paul Nicholson
> -- 
>

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Am 03.01.2018 19:01, schrieb Paul Nicholson:
<blockquote cite="mid:5ad1e784-fde5-d3ab-7f6a-a2dc38e3e21c@abelian.org"
 type="cite">&gt; <a class="moz-txt-link-freetext" href="http://abelian.org/vlf/tmp/ss100315a.png">http://abelian.org/vlf/tmp/ss100315a.png</a>
  <br>
  <br>
Gosh, 3 fT was a huge signal!   Now it is possible to decode
  <br>
messages from 0.03 fT.
  <br>
</blockquote>
As far as i can remember you reported up to 9 fT from my kite
transmissions. That was with the 300m vertical.<br>
Today i would do many things differnt than 2010! Not only the modes and
frequency stability. First i would buy a stronger generator! I
struggled with 350W or so... Crazy...<br>
<br>
<blockquote cite="mid:5ad1e784-fde5-d3ab-7f6a-a2dc38e3e21c@abelian.org"
 type="cite">We should think about ways to encourage more interest in
VLF.
  <br>
I suspect that not many amateurs are aware of the activity.</blockquote>
Exactly this would be one of the important steps in 2018 if we want to
build up regular VLF operation. Articles in radio literature. But this
is not my skill. Easier to wind a 1 H coil instead...<br>
<br>
<blockquote cite="mid:5ad1e784-fde5-d3ab-7f6a-a2dc38e3e21c@abelian.org"
 type="cite">Chatting with a colleague at work the other day, a radio
ham,
  <br>
he had no idea that people were operating at VLF.
  <br>
</blockquote>
You are working? I thought you're doing radio stuff all the day, almost
like me :-)<br>
<br>
<blockquote cite="mid:5ad1e784-fde5-d3ab-7f6a-a2dc38e3e21c@abelian.org"
 type="cite">There are about a dozen major amateur radio journals, but
as
  <br>
far as I know, none have carried any articles about VLF.
  <br>
</blockquote>
RN3AUS has written a large article about VLF! Just 2 months ago: <a
 href="http://rn3aus.narod.ru/VLF-QSO-Radio2017.djvu">http://rn3aus.narod.ru/VLF-QSO-Radio2017.djvu</a><br>
<br>
<blockquote cite="mid:5ad1e784-fde5-d3ab-7f6a-a2dc38e3e21c@abelian.org"
 type="cite">I would have thought that the big LF players at least,
would
  <br>
be interested.  Certainly those that have had a go have found
  <br>
great success and in most cases they already have suitable
  <br>
antennas and they know how to wind loading coils and build
  <br>
hefty amplifiers.<br>
</blockquote>
...it is a total mistery for me why coil winding is such a terrible
imagination for some. It seems to be the largest obstacle...<br>
<br>
<blockquote cite="mid:5ad1e784-fde5-d3ab-7f6a-a2dc38e3e21c@abelian.org"
 type="cite">Now I'm half tempted to write an article, but I can only
write
  <br>
about receiving.<br>
</blockquote>
Which is the first step to do on VLF anyway. <br>
In the German CQDL magazine i'm reading each month about "fun with
QRP", "compromise antennas for limited space"... You can see 6 year old
girls touching a CW key (do they try to suggest that they will become <u>regular</u>
<u>active</u> hams in a few years????)<br>
But actually there are many reagions where people have a lot of space
to hang up large antennas. So there should be articles for people
without space limitations too. <br>
I guess that still &gt; 50% of the hams think that 160m is "top band".<br>
Not ideal for us.<br>
<br>
73, Stefan<br>
<br>
<blockquote cite="mid:5ad1e784-fde5-d3ab-7f6a-a2dc38e3e21c@abelian.org"
 type="cite"><br>
--
  <br>
Paul Nicholson
  <br>
--
  <br>
  <br>
</blockquote>
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