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Date: Tue, 18 Feb 2014 00:45:24 +0100
From: Tobias DG3LV <DG3LV@gmx.net>
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Subject: Re: LF: DF6NM beacon..
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Hi Markus !

Your 3 intended signals were abt 30dB above noise, 1st sidebands at 
471.8 and 475.8 were 10dB down, additional lines at 470.8 and 476.8 were 
20 dB down from main signal, but still 10dB above noise here in JO53gv. 
No QSB visible at any line, sorri. Would be an interesting test. I will 
have a look at my SDR-recordings later.

73 de dg3lv Tobias

Am 17.02.2014 23:50, schrieb Markus Vester:
> Tobias,
> many thanks for the report! Yes I expected those outer lines, but not
> that someone would actually hear them... guess I will have to modify
> the frequency scheme for future tests.
> Did you happen to observe whether the three channels were affected by
> different QSB patterns? On the Heidelberg grabber, they were clearly
> different: whenever one frequency suffered a deep fade, at least one of
> the others was going strong. But for larger distances and lower skywave
> angles the delay spread will presumably be smaller, and 1 kHz
> spacing may no longer be effective enough.
> Back to "pure" single carrier mode now...
> Best 73,
> Markus (DF6NM)
>
> *From:* Tobias DG3LV <mailto:DG3LV@gmx.net>
> *Sent:* Monday, February 17, 2014 11:20 PM
> *To:* Markus Vester <mailto:markusvester@aol.com>
> *Subject:* Re: LF: DF6NM beacon..
>
> Hi Markus !
>
> Confirming, Three lines and two more lines, weaker(-10dB), at 475.8 and
> 471.8 kHz.
>
> 73 de dg3lv Tobias
>
> Am 17.02.2014 23:01, schrieb Markus Vester:
>  > Dave, many thanks for the report!
>  > I'm currently testing frequency diversity as a possible anti-QSB
>  > measure, simultaneously transmitting on 472.8, 473.8 and 474.8. I'm also
>  > listening on these three QRGs.
>  > Will look for QSO activity in a few minutes.
>  > Best 73,
>  > Markus (DF6NM)
>  >
>  > *From:* Dave G3WCB. <mailto:ganymede444@btopenworld.com>
>  > *Sent:* Monday, February 17, 2014 10:51 PM
>  > *To:* rsgb_lf_group@blacksheep.org
> <mailto:rsgb_lf_group@blacksheep.org> <mailto:rsgb_lf_group@blacksheep.org>
>  > *Subject:* LF: DF6NM beacon..
>  >
>  > Hi, Markus.
>  >
>  >     I'm copying your CW beacon on 472.8 RST 539. Your signals are very
>  >     steady with hardly any QSB.
>  >     I don't think I've heard you on CW before. RX antenna is a tuned
>  >     80cm square loop with a pre-amp.
>  >       TEST ON 472R8 KHZ ......VVV TEST DE DF6NM....etc
>  >     73, Dave G3WCB IO91RM, nr Windsor under Thames.
>  >