Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by klubnl.pl (8.14.4/8.14.4/Debian-8+deb8u2) with ESMTP id w9R9plU7002389 for ; Sat, 27 Oct 2018 11:51:49 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1gGLAc-0002UW-0V for rs_out_1@blacksheep.org; Sat, 27 Oct 2018 10:46:14 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1gGLAV-0002UN-F7 for rsgb_lf_group@blacksheep.org; Sat, 27 Oct 2018 10:46:07 +0100 Received: from sonic310-13.consmr.mail.bf2.yahoo.com ([74.6.135.123]) by relay1.thorcom.net with esmtp (Exim 4.91_59-0488984) (envelope-from ) id 1gGLAT-0003i7-Ay for rsgb_lf_group@blacksheep.org; Sat, 27 Oct 2018 10:46:06 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=aol.com; s=a2048; t=1540633562; bh=53AMLHJutWAEgOGZP0BeXGBp72xD2UXiXZDqQCUkHbM=; h=Date:From:To:Subject:References:From:Subject; b=EJf4HbQbVV2T6S8t6oRgLhQaOmo9L1HWYeX1i21rSmfKfChv7w5PIzQaxlruidTlcIlhOXgCcEO/3CepA+/9yUE93ZjBHV3JF/9JzEdB1wSNRhZ061LEyab13jOhEDWazu+JMN0p3mqMjkoUL1B/jJg9f5zBKr2iCyzXvOEadMuUOMZ4asT804MFTVCSYDGCv5NJWJUr3IxLzIa/qqfXdNHQ0OV9+GI/z2taxUhQ+3QEEu1S0RnVLYn9TRl4VDhA39hUTTSl8BTjDnSX9DFQVzmZ37xj6D30zufXpGY2MPQr/BpYwElYlG3JVHe5XqiqrajRfB8sIYtCEqE0nq+kQQ== X-YMail-OSG: IIJITvgVM1lScUSEvD9maZOyPu1RF_zVA1EiLAHYmTrPAuN.hcD2PhL3Ifvg36M dxi5qRcvp9vc6XVMSZcv.2RtU.xp4uFkiQiloS6NRaf0XHbTN1DJjm904Td2ZsUWT4da01ePEpzV 5lGm4MdVLBa9xDX4ghgPqs73w9D9UopRLWCx3hhO8s6R7qWg7JZf8yviLekHXeSVT9QBAQGlenRA cy0RIREftE9__92Df91BkKUSipJ1PynK2PdAcMwCMQBhJ5gHi2MT2VXiqGlcuJoa6G.nc900hDZk 2OtrF1ngZz5_LAxjnEH0o2DnMyk11Qe4ytEY2aTVf92O6GKdFYl63gybTyumG1rmecje9ectqbQO tPvFK7lvp2aBrfg1jLCcCsfB7CpPp2kIgn4BmHWCACg_4kiW6OHJba08.cH0wKAdwP7LIVRqtuJU PBAh1gBAEhzc_viNbnIaqG0nkjYsKP5ORTaQ.kpqUgPGNs1pbnvJTEB7sH0vHfsWv.eOsdnB.3k2 ITXhJtGSLZgs32GucIstSoHvTn73FU8XO84iygqOXCFnNAZx8G923dINr.vjdYC18zngcVWUp_2O 8BWVdbdPBJhrW79CTU3xcw21INWLT_xZvxDsWI1ns1Nn0iobn13zzQmEKv4Uh3KJzj.ozAg74xaJ 4uWUC1uZAnuY3cl7rgU3C0OTejDzEDbzrPDIJbG9DaMYrtWi44uhE5amNTq5BlGVYIeHqnCZe_HY mvYwExtrQNK_YUEM29NlQT_8wXCZUUauoXW2ZjHG7nyCjedXNWA7yjPvaXdUo3Y6v1XE3k6OmKYi r5W91vOl72rGZi5lg10jNvt94ahms57IExucQMjNhmsh72iXL.LrU1Wxog2q130B7x_fcrQYFmL6 I7dhY3OqtPIOHA1omnhEYb2qbbE_jpEoOQVXkY2XUcQrdCpwm0jg4FwLMO8i_ohKgYnhxZTWaScC R4vz_uWwUGUOgVO8m0P.29II- Received: from sonic.gate.mail.ne1.yahoo.com by sonic310.consmr.mail.bf2.yahoo.com with HTTP; Sat, 27 Oct 2018 09:46:02 +0000 Date: Sat, 27 Oct 2018 09:45:57 +0000 (UTC) From: Markus Vester To: rsgb_lf_group@blacksheep.org Message-ID: <562685198.17267493.1540633557178@mail.yahoo.com> MIME-Version: 1.0 References: <562685198.17267493.1540633557178.ref@mail.yahoo.com> X-Mailer: WebService/1.1.12512 aolwebmail Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; Touch; rv:11.0) like Gecko X-Spam-Score: 2.6 (++) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see @@CONTACT_ADDRESS@@ for details. Content preview:  Hi Luis, > Impedance drops a lot after rain This seems unusual. I have exactly the opposite effect here: Series resistance at 137 kHz is normally around 20 ohms (including 5 ohms for the coil). When it rains it get worse up to about 40 ohms, whereas best times are cold and dry winter days with ~15 ohms when the trees are solidly frozen. So I presume that the major contribution to my resistance are capacitively-coupled losses in vegetation and other nearfield environment. The ground connection itself (the "house earth" which is connected to electric grid PE, and also pipe systems for water supply and distict heating) seems to have a low resistance. [...] Content analysis details: (2.6 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [74.6.135.123 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (markusvester[at]aol.com) 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid 1.6 FORGED_MUA_MOZILLA Forged mail pretending to be from Mozilla 1.0 FREEMAIL_REPLY From and body contain different freemails X-Scan-Signature: c9507d5215a3a061de08a1c909797eee Subject: Re: LF: EbNaut Autodecoder 137490 Hz: EA5DOM received Content-Type: multipart/alternative; boundary="----=_Part_17267492_1568821899.1540633557172" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.9 required=5.0 tests=FORGED_MUA_MOZILLA,HTML_50_60, HTML_MESSAGE autolearn=no version=2.63 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 ------=_Part_17267492_1568821899.1540633557172 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable =C2=A0Hi Luis, > Impedance drops a lot after rain This seems unusual. I have exactly the opposite effect here:=C2=A0Series re= sistance at 137 kHz is normally around 20 ohms (including 5 ohms for the co= il). When it rains it get=C2=A0worse up to about 40 ohms, whereas best time= s are cold and dry winter days with ~15 ohms when the trees are solidly fro= zen. So I presume that=C2=A0the major contribution to my resistance are cap= acitively-coupled=C2=A0losses in vegetation=C2=A0and other nearfield enviro= nment. The ground connection itself (the "house earth" which is connected t= o=C2=A0electric grid PE, and also pipe systems for water supply and distict= heating) seems to have a low resistance.=20 My only explanation for lower wet resistance would be=C2=A0if one were=C2= =A0using a separate radial system=C2=A0in the garden, whose connection to g= round might be better when the lawn is soaked.=C2=A0But I don't think this = applies to your setup at all. Best 73, Markus -----Urspr=C3=BCngliche Mitteilung----- Von: VIGILANT Luis Fern=C3=A1ndez An: rsgb_lf_group@blacksheep.org Verschickt: Sa, 27. Okt 2018 10:56 Betreff: Re: LF: EbNaut Autodecoder 137490 Hz: EA5DOM received #yiv9313866573 #yiv9313866573 -- p {margin-top:0;margin-bottom:0;} #yiv931= 3866573 Hi EbNaut Alaska is still too far away for me. Even in EbNaut :(I'm struggling here w= ith the antenna. Most of the time impedance rises and I hardly run 1A RF cu= rrentFor long EbNaut transmissions the PA needs to work more relaxed and la= st night it was no more than 200mA Domenico decoded my messages too. I tried a 30 characters message at 0.1s b= ut didn=C2=B4t workWhich are the EbNaut scripts you have configured now, Do= menico ? Only for 6 characters at 3s/symbol ?Can you run different srips at= the same time to try different message lenghts and speeds ? Rainy weekend here. Impedance drops a lot after rain. Let's see how much cu= rrent can drainLast time I could see almost 4A RF. But for short time until= l a mosfet rised a white flag ;-) 73 de LuisEA5DOM De: owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.org]= en nombre de Laurence KL7 L [hellozerohellozero@hotmail.com] Enviado: s=C3=A1bado, 27 de octubre de 2018 0:19 Para: rsgb_lf_group@blacksheep.org Asunto: Re: LF: EbNaut Autodecoder 137490 Hz: EA5DOM received Im trying to quieten down my 1pps into the sound card so it doesnt bleed ov= er....getting there slowly! Lauence KL7L From: owner-rsgb_lf_group@blacksheep.org on behalf of Markus Vester Sent: Friday, October 26, 2018 1:51 PM To: rsgb_lf_group@blacksheep.org Subject: Re: LF: EbNaut Autodecoder 137490 Hz: EA5DOM received=C2=A0Another= strong decode with zero symbol errors. This can go much further! I hope so= meone in DX-land is observing the frequency. Best 73, Markus (DF6NM) -----Urspr=C3=BCngliche Mitteilung----- Von: VIGILANT Luis Fern=C3=A1ndez An: rsgb_lf_group@blacksheep.org Verschickt: Do, 25. Okt 2018 12:36 Betreff: RE: LF: EbNaut Autodecoder 137490 Hz: EA5DOM received Hi Domenico, LF =C2=A0 I can test again tonight. No problem. I will transmit in =E2=80=9Csecond=E2= =80=9D periods at minute 30 =C2=A0 Finally made an small pcb with 4013 and 4070 in SMD. It plugs directly in t= he 4013 shocket. Uses just one row of the shocket So it is a very easy way to get phase modulation in Class-D G0MRF style PA= =E2=80=99s. Just plug and play. Attached is a picture of an ugly wired version. A new pcb is already designed using just one side, no drills= , and just one wire jumper. Easy to reproduce with big SMD components (1206) =C2=A0 Schematic and picture attached =C2=A0 73 de Luis EA5DOM =C2=A0 De: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blackshe= ep.org]En nombre de Domenico IZ7SLZ Enviado el: mi=C3=A9rcoles, 24 de octubre de 2018 23:36 Para: rsgb_lf_group@blacksheep.org Asunto: Re: LF: EbNaut Autodecoder 137490 Hz: EA5DOM received =C2=A0 Hi Luis, Markus and all =C2=A0 i'm sorry Luis becouse i miss your recent EbNaut transmissions. My Linux PC was engaged in SAQ reception. After dinner i have restored the = setup and now receiver on 136.490 kHz and autodecoder are again operational= so i hope that you are planning to transmit again further messages tonight= . =C2=A0 Good reception of SAQ here in JN80nu thanks to very low QRN and to Paul's v= lfrx-tools used for acquiring, filtering and stream the audio to Windows PC= .=C2=A0 Then i have used Spectrum Lab to convert to analog and send the aud= io to the speaker. Path is about 2300 km. This is the audio recordered: https://drive.google.com/file/d/1QzJYH8GajL2PzCngnkteNT3p5vBN-tAY/view?usp= =3Dsharing In perfect 'vintage' marine radio officer style, i have prepared the text s= ent by SAQ : https://drive.google.com/file/d/1R36BPmf5lyiAlOzDj-bj1dZuNkKleQt3/view?usp= =3Dsharing =C2=A0 a nice text about the Peace. Thanks to the SAQ staff for their activities. =C2=A0 73, Domenico IZ7SLZ =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 On Wed, 24 Oct 2018 at 22:43, VIGILANT Luis Fern=C3=A1ndez wrote: Thank you Markus ! :-)=20 =C2=A0 A second message was transmited at odd (second) period. Your auto decoder i= s performing very good=C2=A0 =C2=A0 73 de Luis EA5DOM =C2=A0 =C2=A0 El 24 oct. 2018 21:38, Markus Vester escribi=C3=B3: Luis, you've made it!=C2=A0 An error-free decode at DF6NM, and also successful=C2=A0at DL0AO=C2=A0(with= lower SNR, presumably due to the RX antenna pointing in another direction)= . Best 73, Markus (DF6NM) IZ7SLZ: https://www.qsl.net/iz7slz/EBNAUT/DECODED.TXT=20 DL0AO:https://vlf.u01.de/LF/LFgrabber/ebnautresults.txt DF6NM: http://df6nm.darc.de/opds/ebnautresults.txt ------=_Part_17267492_1568821899.1540633557172 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
 Hi Luis,

> Impedance drops a lot after rain

This= seems unusual. I have exactly the opposite effect here: Series resist= ance at 137 kHz is normally around 20 ohms (including 5 ohms for the coil).= When it rains it get worse up to about 40 ohms, whereas best times ar= e cold and dry winter days with ~15 ohms when the trees are solidly frozen.= So I presume that the major contribution to my resistance are capacit= ively-coupled losses in vegetation and other nearfield environmen= t. The ground connection itself (the "house earth" which is connected to&nb= sp;electric grid PE, and also pipe systems for water supply and distict hea= ting) seems to have a low resistance.

My on= ly explanation for lower wet resistance would be if one were usin= g a separate radial system in the garden, whose connection to ground m= ight be better when the lawn is soaked. But I don't think this applies= to your setup at all.

Best 73,
Markus

-----Urspr=C3=BCngliche Mitteilung= -----
Von: VIGILANT Luis Fern=C3=A1ndez <luis@vigilant.es= >
An: rsgb_lf_group@blacksheep.org <rsgb_lf_group@blac= ksheep.org>
Verschickt: Sa, 27. Okt 2018 10:56
Betreff: Re: LF: EbNaut Autodecoder 137490 Hz: EA5DOM received

#yiv9313866573 #yiv9313866573 -- p {margin= -top:0;margin-bottom:0;} #yiv9313866573
Hi EbNaut

Alaska is still too far away for me. Even in EbNaut :(
I'm struggling here with the antenna. Most of the time imp= edance rises and I hardly run 1A RF current
For long EbNa= ut transmissions the PA needs to work more relaxed and last night it was no= more than 200mA

Domenico decoded my messages too. I tried a 30 characters = message at 0.1s but didn=C2=B4t work
Which are the= EbNaut scripts you have configured now, Domenico ? Only for 6 characters a= t 3s/symbol ?
Can you run d= ifferent srips at the same time to try different message lenghts and speeds= ?

Rainy weekend here. Impedance drops a lot after rain. Let'= s see how much current can drain
Last time I could see almost 4A RF. But for short time unt= ill a mosfet rised a white flag ;-)

73 de Luis
EA5DOM

= De:= owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.org= ] en nombre de Laurence KL7 L [hellozerohellozero@hotmail.com]
Enviado: s=C3=A1bado, 27 de octubre de 2018 0:19
Para: rsgb_lf_group@blacksheep.org
Asunto: Re: LF: EbNaut Autodecoder 137490 Hz: EA5DOM rec= eived

Im trying to = quieten down my 1pps into the sound card so it doesnt bleed over....getting= there slowly!


Lauence KL7L<= /p>

From: owner-rsgb_lf_group@blacksheep.org <owner-rsgb_lf_= group@blacksheep.org> on behalf of Markus Vester <markusvester@aol.co= m>
Sent: Friday, October 26, 2018 1:51 PM
To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: EbNaut Autodecoder 137490 Hz: EA5DOM re= ceived
 
Another strong decode with zero symbol errors. This can go much further! I = hope someone in DX-land is observing the frequency.

Best 73,
Markus (DF6NM)


-----Urspr=C3=BCngliche Mitteilung-----
Von: VIGILANT Luis Fern=C3=A1ndez <luis@vigilant.es>
An: rsgb_lf_group@blacksheep.org <rsgb_lf_group@blacksheep.org>
Verschickt: Do, 25. Okt 2018 12:36
Betreff: RE: LF: EbNaut Autodecoder 137490 Hz: EA5DOM received

Hi Domenico, LF

 

I can test again tonight.= No problem. I will transmit in =E2=80=9Csecond=E2=80=9D periods at minute = 30

 

Finally made an small pcb= with 4013 and 4070 in SMD. It plugs directly in the 4013 shocket. Uses jus= t one row of the shocket

So it is a very easy way = to get phase modulation in Class-D G0MRF style PA=E2=80=99s. Just plug and = play. Attached is a picture of an ugly

wired version. A new pcb = is already designed using just one side, no drills, and just one wire jumpe= r. Easy to reproduce with

big SMD components (1206)=

 

Schematic and picture att= ached

 

73 de Luis

EA5DOM

 

De: owner-rsgb_l= f_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] En nombre de Domenico IZ7SLZ
Enviado = el: mi=C3=A9rcoles,= 24 de octubre de 2018 23:36
Para: rsgb_lf_group@blacksheep.org
Asunto: Re: LF: EbNaut Autodecoder 137490 Hz: EA5DOM rec= eived

 

Hi Luis, Mar= kus and all

 

i'm sorry Lu= is becouse i miss your recent EbNaut transmissions.

My Linux PC = was engaged in SAQ reception. After dinner i have restored the setup and no= w receiver on 136.490 kHz and autodecoder are again operational so i hope t= hat you are planning to transmit again further messages tonight.

 

Good recepti= on of SAQ here in JN80nu thanks to very low QRN and to Paul's vlfrx-tools u= sed for acquiring, filtering and stream the audio to Windows PC.  Then= i have used Spectrum Lab to convert to analog and send the audio to the speaker. Path is about 2300 km.

This is the = audio recordered:

In perfect '= vintage' marine radio officer style, i have prepared the text sent by SAQ :

 

a nice text = about the Peace. Thanks to the SAQ staff for their activities.

 

73, Domenico= IZ7SLZ

 

 

 

 

 

 

 

 

On Wed, 24 O= ct 2018 at 22:43, VIGILANT Luis Fern=C3=A1ndez <luis@vigilant.es> wrote:

Thank you Ma= rkus ! :-)

 

A second mes= sage was transmited at odd (second) period. Your auto decoder is performing= very good 

 

73 de Luis

EA5DOM

 

 

El 24 oct. 2= 018 21:38, Markus Vester <markusvester@aol.com> escribi=C3=B3:


Luis, you've made it! 

An error-free decode at DF6NM, and also successful at DL0AO (with= lower SNR, presumably due to the RX antenna pointing in another direction)= .

Best 73,
Markus (DF6NM)

IZ7SLZ: https://www.qsl.net/iz7slz/EBNAUT/DECODED.TXT

DL0AO: https://vlf.u01.de/LF/LFgrabber/ebnautresults.txt
DF6NM: http://df6nm.darc.de/opds/ebnautresults.txt


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