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Date: Sat, 17 Aug 2013 13:30:40 +0200
From: =?ISO-8859-1?Q?Stefan_Sch=E4fer?= <Stefan.Schaefer@iup.uni-heidelberg.de>
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References: <7E7DFBB4D102A04DB5ADC88D66628A4A0FC1DC8E@ICTS-S-MBX5.luna.kuleuven.be>,<520BBEDD.1090004@iup.uni-heidelberg.de> <7E7DFBB4D102A04DB5ADC88D66628A4A0FC1DCF7@ICTS-S-MBX5.luna.kuleuven.be>
In-Reply-To: <7E7DFBB4D102A04DB5ADC88D66628A4A0FC1DCF7@ICTS-S-MBX5.luna.kuleuven.be>
Subject: Re: LF: Belgium on  472 kHz
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Hello Rik, MF,

I can see you can receive me at -11 dB SNR in WSPR-2 on 630m at daytime.=20
So i assume i am weak audible? Distance is 332 km which should be the=20
limit of the groundwave.
Your RX system must be very good. The SNR is 10...12 dB better than at=20
PI4THT although the distance is nearly the same, and both completely=20
over land. JO20IX looks like countryside compared to JO32KF. That seems=20
to make a significant difference regarding man made noise. I have the=20
same problems here :-(
Or do you have a super special RX antenna? BTW last night EI0CF reported=20
that he's using a beverage RX ant. Nice stuff!

I'm still hoping to find the limiting factor for my RX system. Is it the=20
non-optimal equipment or simly the location, i.e. can i improve it at=20
this location or did i already reach the best sensitivity i can get from=20
here. On MF i think i can't get much better, except by using directional=20
antennas, maybe.

73, Stefan/DK7FC


Am 14.08.2013 23:42, schrieb Rik Strobbe:
>
> Hello Stefan,
>
> I hope just some days. Meanwhile I can transmit WSPR, WSJT-X etc...
>
> A short WSPR test got me a decode from G3XKR at 630 km. Last winter I=20
> got reports from up to 2000 km (on 501 kHz) with the same rig.
>
> 73, Rik  ON7YD - OR7T
>
> -----------------------------------------------------------------------=
-
> *Van:* owner-rsgb_lf_group@blacksheep.org=20
> [owner-rsgb_lf_group@blacksheep.org] namens Stefan Sch=E4fer=20
> [Stefan.Schaefer@iup.uni-heidelberg.de]
> *Verzonden:* woensdag 14 augustus 2013 19:31
> *To:* rsgb_lf_group@blacksheep.org
> *Onderwerp:* Re: LF: Belgium on 472 kHz
>
> Hi Rik,
>
> Good news! I hope to meet you on the band soon when the PA is working=20
> again. How long will it take to repair it?
> Will you try WSPR during that time, using QRP?
>
> Vy 73, Stefan/DK7FC
>
>
> Am 14.08.2013 18:23, schrieb Rik Strobbe:
>>
>> Dear all,
>>
>> from today on Belgian holders of a HAREC licence are allowed to use=20
>> 472-479 kHz with 5 W EIRP on secondary base. No mode limitations.
>>
>> So far the good news.
>>
>> Bad news is that I started up the TX (after some months of rest) and=20
>> after one minute the was a "bang". A short check showed that the PS=20
>> failed (went from 15V to 22V). The PS was fixed (15V stabilisator=20
>> replaced), but the 22V also destroyed some IC's that are not on the=20
>> sheft in my shack. I have to order them and it can take some tome=20
>> to get QRV with full power (250W).
>>
>> Fortunately I stille have the 6W transverter working, so I can be QRV=20
>> with low power (estimated ERP =3D 20 mW) from now on.
>>
>> 73, Rik  ON7YD - OR7T
>>

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Hello Rik, MF,<br>
<br>
I can see you can receive me at -11 dB SNR in WSPR-2 on 630m at
daytime. So i assume i am weak audible? Distance is 332 km which should
be the limit of the groundwave.<br>
Your RX system must be very good. The SNR is 10...12 dB better than at
PI4THT although the distance is nearly the same, and both completely
over land. JO20IX looks like countryside compared to JO32KF. That seems
to make a significant difference regarding man made noise. I have the
same problems here :-( <br>
Or do you have a super special RX antenna? BTW last night EI0CF
reported that he's using a beverage RX ant. Nice stuff!<br>
<br>
I'm still hoping to find the limiting factor for my RX system. Is it
the non-optimal equipment or simly the location, i.e. can i improve it
at this location or did i already reach the best sensitivity i can get
from here. On MF i think i can't get much better, except by using
directional antennas, maybe.<br>
<br>
73, Stefan/DK7FC<br>
<br>
<br>
Am 14.08.2013 23:42, schrieb Rik Strobbe:
<blockquote
 cite="mid:7E7DFBB4D102A04DB5ADC88D66628A4A0FC1DCF7@ICTS-S-MBX5.luna.kuleuven.be"
 type="cite">
  <meta http-equiv="Content-Type"
 content="text/html; charset=ISO-8859-1">
  <div
 style="direction: ltr; font-family: Tahoma; color: rgb(0, 0, 0); font-size: 10pt;">
  <p>Hello Stefan,</p>
  <p>&nbsp;</p>
  <p>I hope just some days. Meanwhile I can transmit WSPR, WSJT-X etc...</p>
  <p>A short WSPR test got me a decode from G3XKR at 630 km. Last
winter I got reports from up to 2000 km (on 501 kHz) with the same rig.</p>
  <p>&nbsp;</p>
  <p>73, Rik&nbsp; ON7YD - OR7T</p>
  <p>&nbsp;</p>
  <div
 style="font-size: 16px; font-family: Times New Roman; color: rgb(0, 0, 0);">
  <hr tabindex="-1">
  <div id="divRpF971041" style="direction: ltr;"><font color="#000000"
 face="Tahoma" size="2"><b>Van:</b> <a class="moz-txt-link-abbreviated" href="mailto:owner-rsgb_lf_group@blacksheep.org">owner-rsgb_lf_group@blacksheep.org</a>
[<a class="moz-txt-link-abbreviated" href="mailto:owner-rsgb_lf_group@blacksheep.org">owner-rsgb_lf_group@blacksheep.org</a>] namens Stefan Sch&auml;fer
[<a class="moz-txt-link-abbreviated" href="mailto:Stefan.Schaefer@iup.uni-heidelberg.de">Stefan.Schaefer@iup.uni-heidelberg.de</a>]<br>
  <b>Verzonden:</b> woensdag 14 augustus 2013 19:31<br>
  <b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:rsgb_lf_group@blacksheep.org">rsgb_lf_group@blacksheep.org</a><br>
  <b>Onderwerp:</b> Re: LF: Belgium on 472 kHz<br>
  </font><br>
  </div>
  <div>Hi Rik, <br>
  <br>
Good news! I hope to meet you on the band soon when the PA is working
again. How long will it take to repair it?<br>
Will you try WSPR during that time, using QRP?<br>
  <br>
Vy 73, Stefan/DK7FC<br>
  <br>
  <br>
Am 14.08.2013 18:23, schrieb Rik Strobbe:
  <blockquote type="cite">
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    <div
 style="font-size: 10pt; font-family: Tahoma; color: rgb(0, 0, 0); direction: ltr;">
    <p>Dear all,</p>
    <p>&nbsp;</p>
    <p>from today on&nbsp;Belgian holders of a HAREC licence&nbsp;are allowed to
use 472-479 kHz with 5 W EIRP on secondary base. No mode limitations.</p>
    <p>So far the good news.</p>
    <p>Bad news is that I started up the TX (after some months of rest)
and after one minute the was a "bang". A short check showed that the PS
failed (went from 15V to 22V). The PS was fixed (15V stabilisator
replaced), but the 22V also destroyed some IC's that are not on the
sheft in my shack. I have to order them and it can take some&nbsp;tome
to&nbsp;get QRV with full power (250W).</p>
    <p>Fortunately I stille have the 6W transverter working, so I can
be QRV with low power (estimated ERP = 20 mW) from now on.</p>
    <p>&nbsp;</p>
    <p>73, Rik&nbsp; ON7YD - OR7T</p>
    </div>
  </blockquote>
  </div>
  </div>
  </div>
</blockquote>
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