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=FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,HTML_MESSAGE,RCVD_IN_DNSWL_MED, SPF_PASS,T_DKIM_INVALID autolearn=ham autolearn_force=no version=3.4.0 X-Spam-DCC: dcc1: mailn 1182; Body=2 Fuz1=2 Fuz2=2 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mailn.lipkowski.org (8.14.4/8.14.4/Debian-8+deb8u1) with ESMTP id uBACW5ud032079 for ; Sat, 10 Dec 2016 13:32:06 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1cFglZ-0001wH-6D for rs_out_1@blacksheep.org; Sat, 10 Dec 2016 12:28:37 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1cFglY-0001w8-PF for rsgb_lf_group@blacksheep.org; Sat, 10 Dec 2016 12:28:36 +0000 Received: from omr-a013e.mx.aol.com ([204.29.186.60]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.87) (envelope-from ) id 1cFglV-0004s0-7a for rsgb_lf_group@blacksheep.org; Sat, 10 Dec 2016 12:28:35 +0000 Received: from mtaomg-aab02.mx.aol.com (mtaomg-aab02.mx.aol.com [172.26.126.208]) by omr-a013e.mx.aol.com (Outbound Mail Relay) with ESMTP id C760C38000A2 for ; Sat, 10 Dec 2016 07:28:30 -0500 (EST) Received: from core-acx13g.mail.aol.com (core-acx13.mail.aol.com [10.76.18.2]) by mtaomg-aab02.mx.aol.com (OMAG/Core Interface) with ESMTP id 82BAF38000082 for ; Sat, 10 Dec 2016 07:28:30 -0500 (EST) Received: from 188.192.95.60 by webprd-a05.mail.aol.com (10.72.23.236) with HTTP (WebMailUI); Sat, 10 Dec 2016 07:28:30 -0500 Date: Sat, 10 Dec 2016 07:28:30 -0500 From: Markus Vester To: rsgb_lf_group@blacksheep.org Message-Id: <158e8b4c2f2-3dd6-6d74@webprd-a05.mail.aol.com> In-Reply-To: MIME-Version: 1.0 X-MB-Message-Source: WebUI X-MB-Message-Type: User X-Mailer: JAS STD X-Originating-IP: [188.192.95.60] x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20150623; t=1481372910; bh=fcMEvLNna7J90atpUsC9teB97hV4D3lIoNu6vm9KbFo=; h=From:To:Subject:Message-Id:Date:MIME-Version:Content-Type; b=sKGlaLlG6OShzH5X81LoKVEyZO9NoiQ6T6WIsRcTUu3UoxxxCXbE0K74fLnPKLEe2 8hGznreKgiBYkVTXD5Yq9iVkqm+WH2sM93zPFIQENd+R197agfnUH5aZ3NIhejMFoZ D01IVD9uaVlO091Hg6CdtCTecvtct48rBn4LL054= x-aol-sid: 3039ac1a7ed0584bf4ee3f42 X-Scan-Signature: 4933636f78fd1782d378a0372a2e835c Subject: Re: LF: Re: EbNaut tests 137.490 kHz Content-Type: multipart/alternative; boundary="----=_Part_35947_1003679884.1481372910320" 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: 9764 ------=_Part_35947_1003679884.1481372910320 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Thank you very much Domenico! Your feedback is especially valuable as I've= been playing with a modified version of the SpecLab 1pps-PLL for audio gen= eration which can switch the phase even faster.=20 BTW the transmit timing here is a rather inhomogeneus mixture: - the LO of the homemade LF-Grabber TRX is derived from a permanently runni= ng FE5680A Rubidium at ~ 21.39475 MHz, which has indirectly been calibrated= against Russian Loran, - the 1490.0175 Hz audio frequency is controlled by GPS 1pps,=20 - the symbol timing comes from the PC-clock controlled by ntp1.fau.de, whic= h is based on a DCF77 receiver at the Erlangen University. ... I have to simplify that setup sometime in the future ;-) Yes Gizmo and I are hoping to make it across to Joe (VO1NA) one of these ni= ghts. I think he is currently in the process of setting up frequency and sa= mplerate calibrations. Here in Europe those steps may be easier, because we= have a "critical density" of Ebnauteers who can play reasonably strong tes= t signals between each other. On the other hand, I think that e.g. John (W1= TAG), Jay (W1VD) and others have also been able to receive and transmit sig= nals with absolute time and frequency calibration.=20 All the best, Markus (DF6NM) -----Urspr=C3=BCngliche Mitteilung-----=20 Von: Domenico IZ7SLZ An: rsgb_lf_group Verschickt: Sa, 10 Dez 2016 11:27 am Betreff: Re: LF: Re: EbNaut tests 137.490 kHz Hello Markus and group, here the results of your EbNaut transmissions obtained in JN80nu (qrb 1000 = km) UTC En/N0 BER Note 20.00 71.6 0% 1s/sym 21.00 71.6 0% 1s/sym 22.00 71.6 0% 2s/sym 23.00 71.6 0% 2s/sym 00.00 71.6 0% 2s/sym 01.00 71.6 0% 2s/sym 02.00 71.6 0% 2s/sym 03.00 71.6 0% 2s/sym 04.00 15.7 1.2% 2s/sym 05.00 71.6 0% 2s/sym 06.00 2.8 30% 2s/sym foff=3D-0.0002 Hz 07.00 6.7 21.2% 2s/sym foff=3D+0.0001 Hz wav files recordered have been uploaded in the folder http://qsl.net/iz7slz= /DF6NM. They can be used from anyone with the program EbNaut-rx.exe using n= ominal offsets (-10 Hz; 242.05 s). Maybe your message has reached VO1NA.=20 73, Domenico iz7slz On 10 December 2016 at 01:09, Domenico IZ7SLZ w= rote: Hi Markus and LF, i think that your previous email was not distributed. Many thanks for the signal. FB copy here with a monster Eb/N0 without error= s. Decoded "DF6NM 73" Time Eb/N0 22.00 71.6 dB 23.00 71.6 dB I will report the other transmission results tomorrow and i will post the = wav files in my small web-site. 73 and good weekend all ! Domenico, iz7slz On 10 December 2016 at 00:23, Markus Vester wrote: Hi Domenico, here are the EbNaut parameters. I've already sent those through blacksheep,= but unfortunately I usually do not get my own mails back so I don't know w= hether the reflector has really distributed them. Best 73 + GL, Markus -----Urspr=C3=BCngliche Mitteilung-----=20 Von: Markus Vester An: rsgb_lf_group Verschickt: Fr, 9 Dez 2016 11:10 pm Betreff: Re: EbNaut tests 137.490 kHz To obtain some extra sensitivity, I have now slowed down to 2 seconds per s= ymbol, with transmissions starting 0.3 s after each full hour. Frequency 137490 Hz, 8 characters, 8K19A, 2 second symbols (duration 21m52s) Start times: 22:00, 23:00, etc. until 7:00 UT, plus 0.3 s transmit delay. 73, Markus -----Urspr=C3=BCngliche Mitteilung-----=20 Von: Markus Vester An: rsgb_lf_group Verschickt: Fr, 9 Dez 2016 8:39 pm Betreff: EbNaut tests 137.490 kHz This evening I'll run some LF EbNaut tests again:=20 Frequency 137490 Hz, 8 characters, 8K19A, 1 second symbols (duration 656 seconds) start times: 19:30, 20:00, etc, plus 0.3 s transmit delay Best 73, Markus (DF6NM) ------=_Part_35947_1003679884.1481372910320 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Thank you very much Domenico!  Your feedback i= s especially valuable as I've been playing with a modified version of the S= pecLab 1pps-PLL for audio generation which can switch the phase even faster= .

BTW the transmit timing here is a rather inhomogeneus mixtur= e:
- the LO of the homemade LF-Grabber TRX is derived from a p= ermanently running FE5680A Rubidium at ~ 21.39475 MHz, which has indir= ectly been calibrated against Russian Loran,
- the 1490.0175 Hz aud= io frequency is controlled by GPS 1pps, 
- the symbol timing c= omes from the PC-clock controlled by ntp1.fau.de, which is based on a = DCF77 receiver at the Erlangen University.
... I have to simplify t= hat setup sometime in the future ;-)

Yes Gizmo and I are hoping to m= ake it across to Joe (VO1NA) one of these nights. I think he is currently i= n the process of setting up frequency and samplerate calibrations. Her= e in Europe those steps may be easier, because we have a "critical den= sity" of Ebnauteers who can play reasonably strong test signals between eac= h other. On the other hand, I think that e.g. John (W1TAG), Jay (W1VD) = ;and others have also been able to receive and transmit signals with a= bsolute time and frequency calibration. 

All the best,
Marku= s (DF6NM)



-----Urspr=C3=BCngliche Mitteilung-----
Von: D= omenico IZ7SLZ <iz7slz.domenico@gmail.com>
An: rsgb_lf_group <r= sgb_lf_group@blacksheep.org>
Verschickt: Sa, 10 Dez 2016 11:27 am
= Betreff: Re: LF: Re: EbNaut tests 137.490 kHz

Hello Markus and = group,

here the results of your EbNaut transmissions obtained = in JN80nu (qrb 1000 km)

UTC      = ; En/N0     BER     Note

20.00      71.6     &nb= sp; 0%       1s/sym
21.00 =      71.6       0% &= nbsp;     1s/sym
22.00     = 71.6       0%     &= nbsp; 2s/sym
23.00      71.6   &= nbsp;   0%       2s/sym
00.00&nb= sp;     71.6       0%&nbs= p;      2s/sym
01.00    &nb= sp; 71.6       0%    &nbs= p;  2s/sym
02.00      71.6  &nbs= p;    0%       2s/sym
03.00=       71.6       0%&= nbsp;      2s/sym
04.00    =   15.7       1.2%    2s/sym05.00      71.6     &nbs= p; 0%       2s/sym
06.00   =     2.8       30%   =     2s/sym foff=3D-0.0002 Hz
07.00    = ;   6.7       21.2%    2s= /sym foff=3D+0.0001 Hz

wav files recordered have been upl= oaded in the folder http://qsl.net/iz7slz/DF6NM. They can be= used from anyone with the program EbNaut-rx.exe using nominal offsets (-10= Hz; 242.05 s).

Maybe your message has reached VO1NA.
73, Domenico iz7slz



On 10 = December 2016 at 01:09, Domenico IZ7SLZ <iz7slz.domenico@gmail.com> wrote:
Hi Markus and LF,=

i think that your previous email was not distributed.

=
Many thanks for the signal. FB copy here with a monster Eb/N0 without= errors.
Decoded "DF6NM 73"
Time &n= bsp; Eb/N0
22.00   71.6 dB
23.= 00   71.6 dB

I will report th= e other transmission results  tomorrow and i will post the wav files i= n my small web-site.

73 and good weekend all !

Domenico, iz7slz


On 10 Dec= ember 2016 at 00:23, Markus Vester <markusv= ester@aol.com> wrote:
Hi Domenico,

here are the EbNaut parameters= . I've already sent those through blacksheep, but unfortunately I usually d= o not get my own mails back so I don't know whether the reflector has = really distributed them.

Best 73 + GL,
Markus


-----Urs= pr=C3=BCngliche Mitteilung-----
Von: Markus Vester <marku= svester@aol.com>
An: rsgb_lf_group <rsgb_lf= _group@blacksheep.org>
Verschickt: Fr, 9 Dez 2016 11:10 pm
Bet= reff: Re: EbNaut tests 137.490 kHz


To obtain some extra sensitivity, I have= now slowed down to 2 seconds per symbol, with transmissions starting = 0.3 s after each full hour.

Frequency 137490 Hz,
8 characters, 8K= 19A,
2 second symbols (duration 21m52s)
Start times: 22:00, 23:0= 0, etc. until 7:00 UT, plus 0.3 s transmit delay.

73, Markus
-----Urspr=C3=BCngliche Mitteilung-----
Von: Markus Vester <markusvester@aol.com>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: Fr, 9 Dez 2016 8:= 39 pm
Betreff: EbNaut tests 137.490 kHz

This evening I'll run some LF EbNaut= tests again:

Frequency 137490 Hz,
8 characters, 8K19A,
1 sec= ond symbols (duration 656 seconds)
start times: 19:30, 20:00, etc, plus = 0.3 s transmit delay

Best 73,
Markus (DF6NM)
=


------=_Part_35947_1003679884.1481372910320--