Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, HTML_MESSAGE,RCVD_IN_DNSWL_MED autolearn=ham autolearn_force=no version=3.4.0 X-Spam-DCC: EATSERVER: mailn 1166; Body=3 Fuz1=3 Fuz2=3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by lipkowski.org (8.14.4/8.14.4/Debian-8+deb8u1) with ESMTP id v5L9DY84014120 for ; Wed, 21 Jun 2017 11:13:35 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1dNbcA-0007Bn-Va for rs_out_1@blacksheep.org; Wed, 21 Jun 2017 10:07:54 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1dNbc9-0007Be-RY for rsgb_lf_group@blacksheep.org; Wed, 21 Jun 2017 10:07:53 +0100 Received: from mout02.posteo.de ([185.67.36.66]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1dNbc6-0006NF-SZ for rsgb_lf_group@blacksheep.org; Wed, 21 Jun 2017 10:07:52 +0100 Received: from submission (posteo.de [89.146.220.130]) by mout02.posteo.de (Postfix) with ESMTPS id 6619B20AEF for ; Wed, 21 Jun 2017 11:07:49 +0200 (CEST) Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 3wszPv6Dz7z105v for ; Wed, 21 Jun 2017 11:07:47 +0200 (CEST) Message-ID: <594A3763.5060203@posteo.de> Date: Wed, 21 Jun 2017 11:07:47 +0200 From: DK7FC User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <15cc9870dae-44b1-4620@webprd-a19.mail.aol.com> In-Reply-To: <15cc9870dae-44b1-4620@webprd-a19.mail.aol.com> X-Scan-Signature: f548c2e6c4e712c1eb3dcc8bf83f0d4f Subject: Re: LF: EbNaut test Content-Type: multipart/alternative; boundary="------------010703090001040805000008" 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 2.75 Status: O X-Status: X-Keywords: X-UID: 12051 This is a multi-part message in MIME format. --------------010703090001040805000008 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Hello Markus and Riccardo, Looks very nice now, thanks for the decodes and images. 73, Stefan Am 21.06.2017 09:21, schrieb Markus Vester: > Measurements in Nuernberg are confirming Ric's observations. Frequency > and phase were right during the last transmission Jun 20. Only the > first few symbols were incorrect, presumably because the software PLL > takes a few seconds to aquire first lock towards a "green trace". > This could be circumvented by starting the carrier shortly before the > beginning of the sequence. > > Best 73, > Markus (DF6NM) > > -----Ursprüngliche Mitteilung----- > Von: Riccardo Zoli > An: LF Group > Verschickt: Di, 20. Jun 2017 19:24 > Betreff: Re: LF: EbNaut test > > Hi Stefan, Domenico, LF > > Now it's perfect. Nominal QRG, no phase rotation ;-) > > All the best > > > 73 de Riccardo IW4DXW > > > > 2017-06-20 15:37 GMT+02:00 DK7FC >: > > Many thanks Domenico. > > > > I think that i found the bug in my configuration now! > > Let me try another attempt and let's see the offset: > > > > f = 137.53 kHz > > Start time: 20.Jun.2017 14:00:00.3 UTC > > Symbol period: 1 s > > Characters: 15 > > CRC bits: 16 > > Coding 8K19A > > Duration: 16m, 32s > > > > > > 73, Stefan > > > > > > > > Am 20.06.2017 11:14, schrieb Domenico IZ7SLZ: > > > > Hello Stefan, > > > > Here's my decode also. > > > > Found best results at same freq. offset of Riccardo. > > > > The small phase change is due to propagation. > > > > Thanks for the signal and thanks for your calculation of my > 'silence' period > > after op32 transmission, that gives me possibility to receive you. > > > > 73, Domenico IZ7SLZ > > > > > > On 20 Jun 2017 10:53, "DK7FC" > wrote: > >> > >> Hello Riccardo, > >> > >> Many thanks for the decode! I would assume that the phase rotation > is due > >> to propagation. There is also QSB on LF, although not as strong as > on MF. > >> The Alps may add a bit more. > >> > >> 73, Stefan > >> > >> > >> Am 20.06.2017 00:30, schrieb Riccardo Zoli: > >>> > >>> Hi Stefan, Markus, Domenico, LF > >>> > >>> Vy strong here (as usual) in JN64bw, dr Stefan. > >>> Good decode: there is only a little phase rotation and I see you about > >>> 6.3mHz lower than your nominal QRG. > >>> > >>> All the best > >>> > >>> 73 de IW4DXW Riccardo > >>> > >>> > >>> > >>> p.s.: congrats for your efforts and fantastic results in VLF activity. > >>> Keep up the good work! > >>> > >>> > >>> > >>> 2017-06-19 22:42 GMT+02:00 DK7FC >: > >>> > >>>> > >>>> Hello Markus, Domenico, > >>>> > >>>> Ket's just play arround a bit more instead :-) It was such a nice day > >>>> here, > >>>> time for another message :-) > >>>> > >>>> f = 137.53 kHz > >>>> Start time: 19.Jun.2017 20:40:00.3 UTC > >>>> Symbol period: 1 s > >>>> Characters: 40 > >>>> CRC bits: 16 > >>>> Coding 4K19A > >>>> Duration: 18m, 16s > >>>> > >>>> 73, Stefan > >>>> > >> > > > --------------010703090001040805000008 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit Hello Markus and Riccardo,

Looks very nice now, thanks for the decodes and images.

73, Stefan

Am 21.06.2017 09:21, schrieb Markus Vester:
Measurements in Nuernberg are confirming Ric's observations. Frequency and phase were right during the last transmission Jun 20. Only the first few symbols were incorrect, presumably because the software PLL takes a few seconds to aquire first lock towards a "green trace". This could be circumvented by starting the carrier shortly before the beginning of the sequence.

Best 73,
Markus (DF6NM)

-----Ursprüngliche Mitteilung-----
Von: Riccardo Zoli <riccardozoli80@gmail.com>
An: LF Group <rsgb_lf_group@blacksheep.org>
Verschickt: Di, 20. Jun 2017 19:24
Betreff: Re: LF: EbNaut test

Hi Stefan, Domenico, LF

Now it's perfect. Nominal QRG, no phase rotation ;-)

All the best


73 de Riccardo IW4DXW



2017-06-20 15:37 GMT+02:00 DK7FC <selberdenken@posteo.de>:
> Many thanks Domenico.
>
> I think that i found the bug in my configuration now!
> Let me try another attempt and let's see the offset:
>
> f = 137.53 kHz
> Start time: 20.Jun.2017 14:00:00.3 UTC
> Symbol period: 1 s
> Characters: 15
> CRC bits: 16
> Coding 8K19A
> Duration: 16m, 32s
>
>
> 73, Stefan
>
>
>
> Am 20.06.2017 11:14, schrieb Domenico IZ7SLZ:
>
> Hello Stefan,
>
> Here's my decode also.
>
> Found best results at same freq. offset of Riccardo.
>
> The small phase change is due to propagation.
>
> Thanks for the signal and thanks for your calculation of my 'silence' period
> after op32 transmission, that gives me possibility to receive you.
>
> 73, Domenico IZ7SLZ
>
>
> On 20 Jun 2017 10:53, "DK7FC" <selberdenken@posteo.de> wrote:
>>
>> Hello Riccardo,
>>
>> Many thanks for the decode! I would assume that the phase rotation is due
>> to propagation. There is also QSB on LF, although not as strong as on MF.
>> The Alps may add a bit more.
>>
>> 73, Stefan
>>
>>
>> Am 20.06.2017 00:30, schrieb Riccardo Zoli:
>>>
>>> Hi Stefan, Markus, Domenico, LF
>>>
>>> Vy strong here (as usual) in JN64bw, dr Stefan.
>>> Good decode: there is only a little phase rotation and I see you about
>>> 6.3mHz lower than your nominal QRG.
>>>
>>> All the best
>>>
>>> 73 de IW4DXW Riccardo
>>>
>>>
>>>
>>> p.s.: congrats for your efforts and fantastic results in VLF activity.
>>> Keep up the good work!
>>>
>>>
>>>
>>> 2017-06-19 22:42 GMT+02:00 DK7FC<selberdenken@posteo.de>:
>>>
>>>>
>>>> Hello Markus, Domenico,
>>>>
>>>> Ket's just play arround a bit more instead :-) It was such a nice day
>>>> here,
>>>> time for another message :-)
>>>>
>>>> f = 137.53 kHz
>>>> Start time: 19.Jun.2017 20:40:00.3 UTC
>>>> Symbol period: 1 s
>>>> Characters: 40
>>>> CRC bits: 16
>>>> Coding 4K19A
>>>> Duration: 18m, 16s
>>>>
>>>> 73, Stefan
>>>>
>>
>

--------------010703090001040805000008--