Message-ID: <4CC06E0E.40902@o2.ie>
Date: Thu, 21 Oct 2010 17:45:02 +0100
From: Tony <ei8jk@o2.ie>
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Subject: Re: VLF: DK7FC's 8th VLF kite experiment
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Hi Stefan.

Either day is fine for me, although Saturday is AC mains free for me ...=
=20
and what a difference that made on Wednesday. I could see stations I had=
=20
never seen before including the "staircase" waveform that others have=20
reported as well as a frequency hopping transmission.
I will just have to go /P and get away from power lines.

Good luck.
Tony, EI8JK.


On 21/10/2010 16:26, Stefan Sch=E4fer wrote:
> Dear VLF,
>
> This weekend i plan to do my next kite experiment. I have got the=20
> permission for a kite ascent up to 300m above GND on my QTH in JN49IS36V=
H.
>
> I will be QRV either on saturday _or_ on sunday, depending on the wx.=20
> Attached you see the current wind forecast. For saturday the wind is=20
> not optimal, a little weak but it will be dry. On sunday the wind is=20
> quite strong and stable but there is probably some rain... I will have=
=20
> to see on friday evening if i can start on saturday or sunday and will=
=20
> announce that here.
>
> If i will start on sunday, where the SAQ transmission takes place,=20
> this will be no problem since one can listen to SAQ and receive my=20
> transmission on an other computer based RX (e.g. SpecLab), so both can=
=20
> be done to the same time :-).
>
> The starting time should be as early as possible. I have the=20
> permission at 6...16 UTC!
>
> The program is to...
>
> - rise the 200m vertical and transmit a long carrier (30 min) on 8970=20
> Hz, after that a message in DFCW-600 and after that a message in=20
> DFCW-120, then a short CW test.
> - transmit on 6470 Hz in DFCW-600 hoping to be copied at further=20
> stations (maybe M0BMU, SQ5BPF, OE3GHB, PA3FWM...?)
> - if the wind will be optimal i will add another 100m and will try to=20
> transmit at 5170 Hz, 58 km band. This might be once again the lowest=20
> frequency an amateur has ever transmitted and reached the far field=20
> and above 1 Lambda, so each reception will be a WR for amateurs ;-)=20
> BTW, my grabber in Heidelberg is in < 1 Lambda ;-) The mode will be=20
> DFCW-600 as well.
> - Then, coming back to 8970 Hz (maybe in the late afternoon) and=20
> transmit a looong carrier for long time integrations, maybe for a new OD=
X.
> - reach 1,4 A at 8970 Hz, 1 A at 6470 and 5170 Hz
> - be detected at 3 new stations and a new ODX ;-)
> - use a GPS disciplined transmitter (trying SpecLab as the VFO and=20
> DFCW generator the first time)
> - measure the R, 'C' of this 300m vertical on 137 kHz, preparing a new=
=20
> test there ;-) Since it is 55 % of a full size lambda/4 GP, 5 pF/m is=20
> not valid i assume
> - be fascinated by the view of such an antenna which easily finds=20
> place in my car after the test ;-)
>
> Until now i don't know who of the german LF group members would be=20
> possibly on the phone to make QSP to the reflector, just like Markus=20
> did it in the past. If there is a german member who likes to do that=20
> job, please send me a personal mail to exchange the phone numbers=20
> (Festnetz oder O2). Otherwise i have to play my game there alone and=20
> will see what happend in the evening ;-)
>
> BTW, the generator is running again. It started to run again just as i=
=20
> have packed all my stuff in the car after the last experiment :-/=20
> Never mind...
>
> Have i forgotten something?
>
> Please tell me if you think it is no good idea to transmit during the=20
> SAQ transmission or what is your favorite day, if both is possible=20
> here. I would prefer sunday, if the rain forecast changes to sunny :-)
>
> 73 and looking forward to the weekend :-)
>
> Stefan/DK7FC
>
>
>

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    Hi Stefan.<br>
    <br>
    Either day is fine for me, although Saturday is AC mains free for me
    ... and what a difference that made on Wednesday. I could see
    stations I had never seen before including the "staircase" waveform
    that others have reported as well as a frequency hopping
    transmission.<br>
    I will just have to go /P and get away from power lines. <br>
    <br>
    Good luck.<br>
    Tony, EI8JK.<br>
    <br>
    <br>
    On 21/10/2010 16:26, Stefan Sch=E4fer wrote:
    <blockquote cite=3D"mid:4CC05B8F.2030406@iup.uni-heidelberg.de"     =
   type=3D"cite">
      <meta http-equiv=3D"content-type" content=3D"text/html;          cha=
rset=3DISO-8859-15">
      Dear VLF,<br>
      <br>
      This weekend i plan to do my next kite experiment. I have got the
      permission for a kite ascent up to 300m above GND on my QTH in
      JN49IS36VH.<br>
      <br>
      I will be QRV either on saturday <u>or</u> on sunday, depending
      on the
      wx. Attached you see the current wind forecast. For saturday the
      wind
      is not optimal, a little weak but it will be dry. On sunday the
      wind is
      quite strong and stable but there is probably some rain... I will
      have
      to see on friday evening if i can start on saturday or sunday and
      will
      announce that here.<br>
      <br>
      If i will start on sunday, where the SAQ transmission takes place,
      this
      will be no problem since one can listen to SAQ and receive my
      transmission on an other computer based RX (e.g. SpecLab), so both
      can
      be done to the same time :-).<br>
      <br>
      The starting time should be as early as possible. I have the
      permission
      at 6...16 UTC!<br>
      <br>
      The program is to...<br>
      <br>
      - rise the 200m vertical and transmit a long carrier (30 min) on
      8970
      Hz, after that a message in DFCW-600 and after that a message in
      DFCW-120, then a short CW test.<br>
      - transmit on 6470 Hz in DFCW-600 hoping to be copied at further
      stations (maybe M0BMU, SQ5BPF, OE3GHB, PA3FWM...?)<br>
      - if the wind will be optimal i will add another 100m and will try
      to
      transmit at 5170 Hz, 58 km band. This might be once again the
      lowest
      frequency an amateur has ever transmitted and reached the far
      field and
      above 1 Lambda, so each reception will be a WR for amateurs ;-)
      BTW, my
      grabber in Heidelberg is in &lt; 1 Lambda ;-) The mode will be
      DFCW-600
      as well.<br>
      - Then, coming back to 8970 Hz (maybe in the late afternoon) and
      transmit a looong carrier for long time integrations, maybe for a
      new
      ODX.<br>
      - reach 1,4 A at 8970 Hz, 1 A at 6470 and 5170 Hz<br>
      - be detected at 3 new stations and a new ODX ;-)<br>
      - use a GPS disciplined transmitter (trying SpecLab as the VFO and
      DFCW
      generator the first time)<br>
      - measure the R, 'C' of this 300m vertical on 137 kHz, preparing a
      new
      test there ;-) Since it is 55 % of a full size lambda/4 GP, 5 pF/m
      is
      not valid i assume<br>
      - be fascinated by the view of such an antenna which easily finds
      place
      in my car after the test ;-)<br>
      <br>
      Until now i don't know who of the german LF group members would be
      possibly on the phone to make QSP to the reflector, just like
      Markus
      did it in the past. If there is a german member who likes to do
      that
      job, please send me a personal mail to exchange the phone numbers
      (Festnetz oder O2). Otherwise i have to play my game there alone
      and
      will see what happend in the evening ;-)<br>
      <br>
      BTW, the generator is running again. It started to run again just
      as i
      have packed all my stuff in the car after the last experiment :-/
      Never
      mind...<br>
      <br>
      Have i forgotten something? <br>
      <br>
      Please tell me if you think it is no good idea to transmit during
      the
      SAQ transmission or what is your favorite day, if both is possible
      here. I would prefer sunday, if the rain forecast changes to sunny
      :-) <br>
      <br>
      73 and looking forward to the weekend :-)<br>
      <br>
      Stefan/DK7FC<br>
      <br>
      <br>
      <br>
    </blockquote>
    <br>
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