Return-Path: X-Spam-DCC: paranoid 1181; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.4 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, HTML_MESSAGE,SPF_PASS,UNPARSEABLE_RELAY autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id u6BAU9OO026247 for ; Mon, 11 Jul 2016 12:30:09 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1bMYMf-0008CI-9F for rs_out_1@blacksheep.org; Mon, 11 Jul 2016 11:23:01 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1bMYMe-0008C9-U2 for rsgb_lf_group@blacksheep.org; Mon, 11 Jul 2016 11:23:00 +0100 Received: from omr-a010e.mx.aol.com ([204.29.186.54]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.87) (envelope-from ) id 1bMYMc-00012t-MW for rsgb_lf_group@blacksheep.org; Mon, 11 Jul 2016 11:22:59 +0100 Received: from mtaomg-aab01.mx.aol.com (mtaomg-aab01.mx.aol.com [172.26.126.207]) by omr-a010e.mx.aol.com (Outbound Mail Relay) with ESMTP id 8ACC8380009E for ; Mon, 11 Jul 2016 06:22:56 -0400 (EDT) Received: from core-acv27.mail.aol.com (core-acv27.mail.aol.com [10.72.126.68]) by mtaomg-aab01.mx.aol.com (OMAG/Core Interface) with ESMTP id 590BF38000083 for ; Mon, 11 Jul 2016 06:22:56 -0400 (EDT) Received: from 192.35.17.16 by webprd-a67.mail.aol.com (10.72.57.81) with HTTP (WebMailUI); Mon, 11 Jul 2016 06:22:56 -0400 Date: Mon, 11 Jul 2016 06:22:56 -0400 From: Markus Vester To: rsgb_lf_group@blacksheep.org Message-Id: <155d97b2c4c-411-2167f@webprd-a67.mail.aol.com> In-Reply-To: <578253D5.8000907@posteo.de> MIME-Version: 1.0 X-MB-Message-Source: WebUI X-MB-Message-Type: User X-Mailer: JAS STD X-Originating-IP: [192.35.17.16] x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20150623; t=1468232576; bh=Ww95g6N3/A8YbdhWMZ252L0U9XL0sTeQF/GJgTVFa58=; h=From:To:Subject:Message-Id:Date:MIME-Version:Content-Type; b=kPnnMfiK9zVfxAnexmcAe+Uklt+a+iFTKx/E8L1guc1F6PRZ4w5WqcfrE+tc6+JM0 971L5eEI6W+lMKbupEXTEofrLOiykURDhZqrT5HsHQCtC+o9Pl7Xz2PZSlXLRFHh69 kqoyKAgUR/rgVbz5Bmf/fhF1qlH7ue/YhsmpQWbo= x-aol-sid: 3039ac1a7ecf578373801e5e X-Scan-Signature: 420019f4991fbaa4f653703c21f48617 Subject: Re: ULF: Key down signal on the 101 km band, still on the air Content-Type: multipart/alternative; boundary="----=_Part_152529_179180530.1468232576073" X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-Scanned-By: MIMEDefang 2.56 on 10.1.3.11 Status: O X-Status: X-Keywords: X-UID: 8361 ------=_Part_152529_179180530.1468232576073 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Excellent result... And now you got 40 dB SNR, scaling nicely with integrat= ion time and inverse bandwidth. This shows how GPS locking both transmitter= and receiver can achieve timing as accurate as a gear drive! Best 73, Markus (DF6NM) =20 -----Urspr=C3=BCngliche Mitteilung-----=20 Von: DK7FC An: rsgb_lf_group Verschickt: So, 10 Jul 2016 3:58 pm Betreff: Re: ULF: Key down signal on the 101 km band, still on the air Hi all, It's a deep summer hole this year it seems :-) Well, i've stared a 4.1 uHz per FFT bin spectrogram in SpecLab. Probably=20 the slowest spectrogram in SL ever? ;-) It took about 3 days until the first pixel/spectrum appeared. The scroll=20 rate is 1000 minutes / pixel. Time stamps are "MMM" :-) Look at the spectrum peak of the signal, it's right on the frequency and=20 quite sharp, proofing a good stability of RX, TX and path.... The signal is on the air now since 2 weeks! 73 all, Stefan PS: +33 C here... Am 08.07.2016 14:16, schrieb DK7FC: > Hi Paul, ULF, > > I just remember these curves, see attachent. > > Even on our path, the 101 km band seems to be not the easiest place to=20 > be :-) There could be a 20 dB disadvantage even on our short path. It=20 > doesn't matter, i will simply transmit 100 times as long :-) > Once you got my peak, you can easier optimise the settings and we can=20 > do calculations and estimations... > > I have completed the first stack (1 of 8) of my new coil intedned to=20 > generate 40 kV at 2.97 kHz. It has 350 mH, the loss is 107 Ohm at 2970=20 > Hz. It can handle 350 mA antenna current without problems. For a HV=20 > test i need the PA which is in use now :-) > Images:https://dl.dropboxusercontent.com/u/19882028/ULF/20160708_140755.j= pg=20 > and https://dl.dropboxusercontent.com/u/19882028/ULF/20160708_140728.jpg > > 73, Stefan > > > > Am 06.07.2016 08:48, schrieb Paul Nicholson: >> >> Stefan wrote: >> >> > The carrier is on the air since 9 days now, without >> > an interruption. >> >> Nothing is visible, not even the beginning of a peak at 2970, >> down to bandwidths of 1.36 uHz. >> >> I continue to experiment with the settings of filters and >> sferic blanker. The noise floor is too high, averaging >> 0.023 fT in 1.36 uHz even after blanking the noisy periods. >> It should be a lot lower than that. If I can fix that problem, >> we may see the signal appear. >> >> --=20 >> Paul Nicholson >> --=20 >> ------=_Part_152529_179180530.1468232576073 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Excellent result... And now you got 40 dB SNR, scal= ing nicely with integration time and inverse bandwidth. This shows how= GPS locking both transmitter and receiver can achieve timing&nbs= p;as accurate as a gear drive!

Best 73,
Markus (DF6NM)
 <= br>

-----Urspr=C3=BCngliche Mitteilung-----
Von: DK7FC <selbe= rdenken@posteo.de>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org= >
Verschickt: So, 10 Jul 2016 3:58 pm
Betreff: Re: ULF: Key down s= ignal on the 101 km band, still on the air

Hi all,

It's= a deep summer hole this year it seems :-)

Well, i've stared a 4.1 u= Hz per FFT bin spectrogram in SpecLab. Probably
the slowest spectrogram= in SL ever? ;-)
It took about 3 days until the first pixel/spectrum app= eared. The scroll
rate is 1000 minutes / pixel. Time stamps are "MMM" := -)

Look at the spectrum peak of the signal, it's right on the freque= ncy and
quite sharp, proofing a good stability of RX, TX and path....
The signal is on the air now since 2 weeks!

73 all, Stefan
=
PS: +33 C here...



Am 08.07.2016 14:16, schrieb DK7FC:> Hi Paul, ULF,
>
> I just remember these curves, see attac= hent.
>
> Even on our path, the 101 km band seems to be not the= easiest place to
> be :-) There could be a 20 dB disadvantage even = on our short path. It
> doesn't matter, i will simply transmit 100 t= imes as long :-)
> Once you got my peak, you can easier optimise the = settings and we can
> do calculations and estimations...
>
= > I have completed the first stack (1 of 8) of my new coil intedned to <= br>> generate 40 kV at 2.97 kHz. It has 350 mH, the loss is 107 Ohm at 2= 970
> Hz. It can handle 350 mA antenna current without problems. For= a HV
> test i need the PA which is in use now :-)
> Images:https://dl.dropboxusercontent.com/u/19882028/ULF/2016= 0708_140755.jpg
> and https://dl.dropbox= usercontent.com/u/19882028/ULF/20160708_140728.jpg
>
> 73, = Stefan
>
>
>
> Am 06.07.2016 08:48, schrieb Paul Ni= cholson:
>>
>> Stefan wrote:
>>
>> >= The carrier is on the air since 9 days now, without
>> > an in= terruption.
>>
>> Nothing is visible, not even the beginn= ing of a peak at 2970,
>> down to bandwidths of 1.36 uHz.
>&= gt;
>> I continue to experiment with the settings of filters and>> sferic blanker. The noise floor is too high, averaging
>&g= t; 0.023 fT in 1.36 uHz even after blanking the noisy periods.
>> = It should be a lot lower than that. If I can fix that problem,
>>= we may see the signal appear.
>>
>> --
>> Paul= Nicholson
>> --
>>

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