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 w87CTtqs023624 for ; Fri, 7 Sep 2018 14:29:57 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1fyFpc-0004ZM-0A for rs_out_1@blacksheep.org; Fri, 07 Sep 2018 13:25:48 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1fyFpb-0004ZD-C1 for rsgb_lf_group@blacksheep.org; Fri, 07 Sep 2018 13:25:47 +0100 Received: from mail-oi0-x230.google.com ([2607:f8b0:4003:c06::230]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91_59-0488984) (envelope-from ) id 1fyFpZ-0000on-E4 for rsgb_lf_group@blacksheep.org; Fri, 07 Sep 2018 13:25:46 +0100 Received: by mail-oi0-x230.google.com with SMTP id m11-v6so26906029oic.2 for ; Fri, 07 Sep 2018 05:25:45 -0700 (PDT) X-DKIM-Result: Domain=gmail.com Result=Good and Known Domain DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=rmZzkmxJZg0mPakQXoloKOo5/RrL0CjxZrVJpBU1cHQ=; b=Wv0RYluxiKLry9T+0RZJrEp/cgC4r2EBmW8W9inRJJCSguS6tkO81zgk2E7/XcFLVN YwYrheJpdwjvgcWIQ1ZNWruTtjRKGP7mXVVuCty36unPXMZvwkTSXRSHGEiFuI9kntpE euRHFOyMyUOLJNaUk2vw/VCXXxeDYwQX9lWQ+pV9MV84Qx7jTu6hZJZaT0NvRhUUL3rd m5lI6o0ZmYHcV5ibCziPGZWs10sTI3MXXSSNsHXpbgkzu8uVj7gnc/rEHl6ezFWofN3X zCOtkFP1Fse6+r2AjhMPlLyU8uN4tw5A5MYCbtZtq9m5bPaMJr9e7p10XufervyaV3O8 pt3A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=rmZzkmxJZg0mPakQXoloKOo5/RrL0CjxZrVJpBU1cHQ=; b=U9f+yRKBBJRybAWG8ZbKE2o7f9YArbZZ2Qe9UKhrIeplR9hSUGy2QOQNKgH7exzbeK 9dJn4P9RGesQf/ziQhlLBNWbEyq3JXqcYOcTwTd8Y8q4m3ChSzez4OwcENYHR3yTWOnx wlVOeRDtviQPHkZ+53YYDZerNZqgnPUkpQrGw6JQEaVZKBAwXYquWS/d/zkRYsd7MaHH vbaYcuq3y+WkW84r1ck2tCiOPNKx6oawV9DwgNF4M4bYR7w5G4PqdII1UFaw9AxeeutE 5F+SeWsiTxDKxpQbBDPcnNRVOchXHGE3nUAfSoCIzGezpwbgGZSgOzLRjyyhzxPqqF02 rYQQ== X-Gm-Message-State: APzg51CuywE4/g0ep18LopkW1JoPVKkzwKa+INqscEDWkIhYS4XlHV3F AK2QGiqr2a9rHmfC2I+UxdtnVdTGgYd9sZmm8tt3IwRZ X-Google-Smtp-Source: ANB0Vdby8RIGoJemJo7o2pC1NfKYJdDMdgZ9Alk7rDpfFmeM4aAi+d+7QggVeAxDh00YJCuWtEMR0doi8lKMtDdAgo0= X-Received: by 2002:aca:5dc5:: with SMTP id r188-v6mr8243160oib.320.1536323143523; Fri, 07 Sep 2018 05:25:43 -0700 (PDT) MIME-Version: 1.0 References: <6DB8451D7F3D3947A5918808A59621EA0860552F@servigilant.vigilant.local> <6DB8451D7F3D3947A5918808A59621EA08605681@servigilant.vigilant.local> In-Reply-To: <6DB8451D7F3D3947A5918808A59621EA08605681@servigilant.vigilant.local> From: Domenico IZ7SLZ Date: Fri, 7 Sep 2018 14:25:03 +0200 Message-ID: To: rsgb_lf_group@blacksheep.org X-Spam-Score: 0.0 (/) 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: Hello again Luis, Ok, understood. BTW i leave the autodecoder running with these settings from now on. You, or other operators, can transmit anytime at .00 or .30. Daytime reception here is plagued by qrm, but during weekend is better. [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [2607:f8b0:4003:c06:0:0:0:230 listed in] [list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (iz7slz.domenico[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 4220a5ee914f949f13cd1b56700aea33 Subject: Re: LF: EbNaut transmission test in LF Content-Type: multipart/mixed; boundary="0000000000003b52a40575471b22" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.5 required=5.0 tests=HTML_40_50,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 --0000000000003b52a40575471b22 Content-Type: multipart/alternative; boundary="0000000000003b52a10575471b20" --0000000000003b52a10575471b20 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hello again Luis, Ok, understood. BTW i leave the autodecoder running with these settings from now on. You, or other operators, can transmit anytime at .00 or .30. Daytime reception here is plagued by qrm, but during weekend is better. I want to share in the group the linux bash file that i'm currently using in the ubuntu pc that performs EbNaut auto-decoding function. May be someone is interested at it and can give suggestions or improvements (i'm not linux expert at all !). Domenico IZ7SLZ On Fri, 7 Sep 2018 at 13:39, VIGILANT Luis Fern=C3=A1ndez wrote: > Hi Domenico > > > > Sorry, I=E2=80=99m not transmitting this weekend. Very stormy weather her= e, so the > wires are down > > I will notice in the reflector any transmission in advance. But first wan= t > to confirm that all is working ok > > So that was the goal of yesterday test > > > > Yes, the XOR is AFTER the 1/10 divider, and working at the final frequenc= y > 137485 Hz > > > > Your auto-decoder is a great tool. EbNaut is quite tricky for average use > and needs a lot of details to care about > > Of course the reward is great when you get decodes with miserable signal > levels. There is never free lunch ! ;-) > > > > 73 de Luis > > EA5DOM > > > > *De:* owner-rsgb_lf_group@blacksheep.org [mailto: > owner-rsgb_lf_group@blacksheep.org] *En nombre de *Domenico IZ7SLZ > *Enviado el:* viernes, 07 de septiembre de 2018 13:18 > *Para:* rsgb_lf_group@blacksheep.org > *Asunto:* Re: LF: EbNaut transmission test in LF > > > > Hello Luis, > > > > thanks for sharing your experiment. My auto-decoder > https://www.qsl.net/iz7slz/ is already retuned for your transmissions. > > > > BTW QRM is large here in the morning time (urban location). I will try to > catch your signal later in the night. > > > > *At least the decoder is detecting the carrier but may be there is no > proper phase modulation or probably other failures* > > *What I=E2=80=99m doing wrong ? Can anybody decode the message from the f= ile ?* > > > > I also suspect some issues on modulator circuit. Of course the XOR gate > is following the /10 divider, is it? > > > > Good luck. > > > > 73 all, > > Domenico/IZ7SLZ > > > > > > > > On Fri, 7 Sep 2018 at 11:38, VIGILANT Luis Fern=C3=A1ndez > wrote: > > Hi LF EbNauters > > > > I have been building a disciplined Rx for LF, based in a GPS LO at 120KHz > and a NE602 downconverter to 17KHz > > Then feeding the signal to the soundcard, also disciplined with 1pps from > the same GPS > > > > At Tx side a GPS LO at 1374850 Hz divided by 10 provides 0.1Hz steps at > LF. Then an XOR gate is used for > > EbNaut modulation from the DTR of a COM port under Windows. The PA is > just a mosfet driver (mic4452 AT 12v) > > Just about 100mW to antenna but good enough to get a 20dB S/N in my Rx 7K= m > away > > > > Stability looks pretty good and also phase modulation as seen in SL > spectrogram. Also monitoring phase changes > > with the SL plot display window. So, yesterday I tried an EbNaut > transmission with the following setup > > > > Coding: 8K19A > > CRC 16 > > Symbol period: 1s > > Characters: 6 Transmission time: 9.3 minutes > > Transmitting at minute 00 and 30 every hour > > > > I got the FFT files from SL and converted them to WAV files. The > configuration file (SR) included the corrected sample rate > > of the soundcard as well as decimation , FFT length and center frequency > > > > Attached is a WAV file starting at 16:22 which should contain the > transmission started at 16:30 untill about 16:40 > > > > The rawsym graphic shows a clear peak centered in frequency, but I haven= =E2=80=99t > been able to get a decode other than =E2=80=9C******=E2=80=9D > > At least the decoder is detecting the carrier but may be there is no > proper phase modulation or probably other failures > > What I=E2=80=99m doing wrong ? Can anybody decode the message from the fi= le ? > > BTW, I have used a list length of 47274 and also 141823, but nill L > > > > 73 de Luis > > EA5DOM > > --0000000000003b52a10575471b20 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hello again Luis,

Ok, understood. BTW i leave the autodecoder running with these setti= ngs from now on. You, or other operators, can transmit anytime at .00 or .3= 0.
Daytime reception here is plagued by qrm, but during weekend i= s better.

I want to share in the group=C2=A0 the l= inux bash file that i'm currently using in the ubuntu pc that performs = EbNaut auto-decoding function. May be someone is interested at it and can g= ive suggestions or improvements (i'm not linux expert at all !).
<= div>
Domenico IZ7SLZ


<= div>

=

On Fri, 7 S= ep 2018 at 13:39, VIGILANT Luis Fern=C3=A1ndez <luis@vigilant.es> wrote:

Hi Domenico

=C2=A0

Sorry, I=E2=80=99m not= transmitting this weekend. Very stormy weather here, so the wires are down=

I will notice in the r= eflector any transmission in advance. But first want to confirm that all is= working ok

So that was the goal o= f yesterday test

=C2=A0

Yes, the XOR is AFTER = the 1/10 divider, and working at the final frequency 137485 Hz

=C2=A0

Your auto-decoder is a= great tool. EbNaut is quite tricky for average use and needs a lot of deta= ils to care about

Of course the reward i= s great when you get decodes with miserable signal levels. There is never f= ree lunch ! ;-)

=C2=A0

73 de Luis

EA5DOM

=C2=A0

De: owner-rsgb_lf_group@blacksheep.org<= /a> [mailto:owner-rsgb_lf_group@blacksheep.org] En nombre de Domenico IZ7SLZ
Enviado el: viernes, 07 de septiembre de 2018 13:18
Para: rsgb_lf_group@blacksheep.org
Asunto: Re: LF: EbNaut transmission test in LF<= /p>

=C2=A0

Hello Luis,

=C2=A0

thanks for sharing your experiment. My auto-decoder= =C2=A0 https://www.qsl.net/iz7slz/=C2=A0 is already retuned for your transmiss= ions.

=C2=A0

BTW QRM is large here in the morning time (urban loc= ation). I will try to catch your signal later in the night.

=C2=A0

At least the decoder is dete= cting the carrier but may be there is no proper phase modulation or probabl= y other failures

What I=E2=80=99m doing wrong= ? Can anybody decode the message from the file ?<= /p>

=C2=A0

=C2=A0I also suspect some issues on modulator circui= t. Of course the XOR gate is following the /10 divider, is it?

=C2=A0

Good luck.

=C2=A0

73 all,

Domenico/IZ7SLZ

=C2=A0

=C2=A0

=C2=A0

On Fri, 7 Sep 2018 at 11:38, VIGILANT Luis Fern=C3= =A1ndez <luis@vigi= lant.es> wrote:

Hi LF EbNauters

=C2=A0

I have been building a discipli= ned Rx for LF, based in a GPS LO at 120KHz and a NE602 downconverter to 17K= Hz

Then feeding the signal to the = soundcard, also disciplined with 1pps from the same GPS

=C2=A0

At Tx side a GPS LO at 1374850 = Hz divided by 10 provides 0.1Hz steps at LF. Then an XOR gate is used for

EbNaut modulation from the DTR = of=C2=A0 a COM port under Windows. The PA is just a mosfet driver (mic4452 = AT 12v)

Just about 100mW to antenna but= good enough to get a 20dB S/N in my Rx 7Km away

=C2=A0

Stability looks pretty good and= also phase modulation as seen in SL spectrogram. Also monitoring phase cha= nges

with the SL plot display window= . So, yesterday I tried an EbNaut transmission with the following setup

=C2=A0

Coding: 8K19A<= /u>

CRC 16

Symbol period: 1s=

Characters: 6=C2=A0 =C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0Transmission time: 9.3 minutes

Transmitting at minute 00 and 3= 0 every hour

=C2=A0

I got the FFT files from SL and= converted them to WAV files. The configuration file (SR) included the corr= ected sample rate

of the soundcard as well as dec= imation , FFT length and center frequency

=C2=A0

Attached is a WAV file starting= at 16:22 which should contain the transmission started at 16:30 untill abo= ut 16:40

=C2=A0

The rawsym graphic shows a clea= r peak centered in frequency, but I haven=E2=80=99t been able to get a deco= de other than =E2=80=9C******=E2=80=9D

At least the decoder is detecti= ng the carrier but may be there is no proper phase modulation or probably o= ther failures

What I=E2=80=99m doing wrong ? = Can anybody decode the message from the file ?

BTW, I have used a list length = of 47274 and also 141823, but nill L=

=C2=A0

73 de Luis=

EA5DOM

--0000000000003b52a10575471b20-- --0000000000003b52a40575471b22 Content-Type: application/octet-stream; name=autoebnaut Content-Disposition: attachment; filename=autoebnaut Content-Transfer-Encoding: base64 Content-ID: X-Attachment-Id: f_jlryyojp0 CiMhL2Jpbi9iYXNoJwoKIyBhdXRvLUViTmF1dCBieSBJWjdTTFoganVseSAyMDE3IAojbGFzdCBy ZXYuIDA4LTIwMTgKCgoKCmZ1bmN0aW9uIHByb2Nlc3NfZGVjb2RlCgp7CgoKCmVjaG8gICRUSU1F U1RBTVAgICRGUkVRVUVOQ1kgJ1tIel0gTj0nJENIQVIgJ1Q9JyRTWU0ncycgJENPREUgJ0NSQz0n JENSQyAnbGlzdD0nJExJU1QgJ3N5bT0nJEJJVFMgJ0R1cmF0aW9uPSckRFVSQVQncycgID4gIERF Q09ERUQxLlRYVAoKZWNobyAncHJvY2Vzc2luZyArJyRSRUMgJ3NlY29uZHMuLi4uJwoKdnRyZWFk ICAtdiAtVCAkVElNRUlOSVQsJysnJFJFQyAvbWVkaWEvaXo3c2x6L1N0b3JhZ2UvTEYgfCAgICAg CSMgcmVhZCBMRiByYXcKdnRjYXQgLXAgfAp2dGZpbHRlciAtdiAtaCBicCxmPTE1MDAsdz0zMDAw IHwgICAgICAgICAgCQkJIyBQcmUtZmlsdGVyIGJlZm9yZSBibGFua2luZwp2dGJsYW5rIC12IC1h MTUgLWQwIC10MzAwIHwgICAgICAgICAgICAgICAJCQkjIFR5cGljYWwgc2ZlcmljIGJsYW5rZXIg c2V0dGluZ3MgZXggMgp2dG11bHQgLXYgLWYgJEZSRVEgfCAgICAgICAgICAgICAgICAgICAgICAg CSAJCSMgTWl4IHRvIGJhc2ViYW5kIEkvUQp2dHJlc2FtcGxlIC12IC1yIDI0MCB8ICAJICAgICAg ICAgICAgICAJCQkjIFJlZHVjZSB0byAyNDAgc2FtcGxlIHBhaXJzL3NlYwoKCnZ0cmF3IC1vYSAg fCAgICAgICAgICAgICAgICAgICAgCQkJCSMgQ29udmVydCB0byAzLWNvbHVtbnMgb2YgQVNDSUkK ZWJuYXV0IC12IC1kcDhLMTlBIC1GMCAtTiRDSEFSIC1TJFNZTSAtcjI0MCAtayRDUkMgLWMyIC1M JExJU1QgLVQ2MCAtUFMgfCB0ZWUgLWEgREVDT0RFRDEuVFhUICMgRGVjb2RlCgplY2hvIC0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tID4+ICBERUNPREVEMS5UWFQKCgouL3VwbG9h ZGVibmF1dCAgI2ludm9rZSBzaGVsbCBmaWxlIHdpdGggY3VybCBmb3IgdXBsb2FkIGZpbGVzIHRv IHdlYnNpdGUKCgoKCkRPTkU9MQp9CgoKCiAKIyMjIyBtYWluCgpjbGVhcgoKRE9ORT0xCgoKCndo aWxlIERPTkU9MTsgZG8KCgpNSU5VVE89JChkYXRlICslTSk6JChkYXRlICslUykKCiAgICAgIApp ZiBbICRNSU5VVE8gPSAiMjA6MDAiIC1hICAkRE9ORSA9IDEgXTsgdGhlbgoJCURPTkU9MAoJCQoJ CVRJTUVJTklUPSQoZGF0ZSAtdSAtLWRhdGU9JzEgaG91ciBhZ28nICslRilfJChkYXRlIC11IC0t ZGF0ZT0nMSBob3VyIGFnbycgKyVIKTo1OTowMCAjIDYwcyBlYXJseQoJCVRJTUVTVEFNUD0kKGRh dGUgLXUgICslRilfJChkYXRlIC11ICslSCk6MDA6MDAKICAgICAgICAgICAgICAgIAoKI3BhcmFt ZXRlcnMKCQlGUkVRVUVOQ1k9MTM3NDg1CiAgICAgICAgICAgICAgICBESUFMPTEzNjAwMAogICAg ICAgICAgICAgICAgTElTVD0xMDAwMAogICAgICAgICAgICAgICAgQ0hBUj02CiAgICAgICAgICAg ICAgICBTWU09MQogICAgICAgICAgICAgICAgQ1JDPTE2CiAgICAgICAgICAgICAgICBDT0RFPThL MTlBCiAgICAgICAgICAgICAgICBSQVRFPTgKCQlDT05TVFI9MTkKICAgICAgICAgICAgICAgIAoj Q0FMQ1VMQVRJT05TCgkJRlJFUT0kKGVjaG8gJEZSRVFVRU5DWS0kRElBTCB8ICBiYyAtbCkgICAK ICAgICAgICAgICAgICAgIEJJVFM9JChlY2hvICRDSEFSKjYrJENSQyskQ09OU1RSLTEgfCBiYyAg LWwpIAogICAgICAgICAgICAgICAgQklUUz0kKGVjaG8gJEJJVFMqJFJBVEUgfCBiYyAgLWwpICAg ICMgbm8uIG9mIHN5bWJvbHMgCgogICAgICAgICAgICAgICAgRFVSQVQ9JChlY2hvICRCSVRTKiRT WU0gfCBiYyAgLWwpICAgICMgZHVyYXRpb24gb2YgdGhlIHRyYW5zbWlzc2lvbiAgIAogICAgICAg ICAgICAgICAgUkVDPSQoZWNobyAkRFVSQVQrMzAwIHwgYmMgIC1sKSAgICAgICMgZHVyYXRpb24g b2YgdGhlIHJhdyBhdWRpbyBmaWxlCiAgICAgICAgICAgICAgICAKICAgICAgICAgICAgICAgCgoK ICAgICAgICAgICAgICAgIHByb2Nlc3NfZGVjb2RlCgoKCgplbGlmIFsgJE1JTlVUTyA9ICI0MDow MCIgLWEgICRET05FID0gMSBdOyB0aGVuCgoJCURPTkU9MAoJCVRJTUVJTklUPSQoZGF0ZSAtdSAg KyVGKV8kKGRhdGUgLXUgICslSCk6Mjk6MDAgICMgNjBzIGVhcmx5CgkJVElNRVNUQU1QPSQoZGF0 ZSAtdSAgKyVGKV8kKGRhdGUgLXUgICslSCk6MzA6MDAKCiNQQVJBTUVURVJTCgkJRlJFUVVFTkNZ PTEzNzQ4NQogICAgICAgICAgICAgICAgRElBTD0xMzYwMDAKICAgICAgICAgICAgICAgIExJU1Q9 MTAwMDAKICAgICAgICAgICAgICAgIENIQVI9NgogICAgICAgICAgICAgICAgU1lNPTEKICAgICAg ICAgICAgICAgIENSQz0xNgogICAgICAgICAgICAgICAgQ09ERT04SzE5QQogICAgICAgICAgICAg ICAgUkFURT04CgkJQ09OU1RSPTE5CgojQ0FMQ1VMQVRJT05TCgoJCUZSRVE9JChlY2hvICRGUkVR VUVOQ1ktJERJQUwgfCAgYmMgLWwpCiAgICAgICAgICAgICAgICBCSVRTPSQoZWNobyAkQ0hBUio2 KyRDUkMrJENPTlNUUi0xIHwgYmMgIC1sKQogICAgICAgICAgICAgICAgQklUUz0kKGVjaG8gJEJJ VFMqJFJBVEUgfCBiYyAgLWwpCgogICAgICAgICAgICAgICAgRFVSQVQ9JChlY2hvICRCSVRTKiRT WU0gfCBiYyAgLWwpCiAgICAgICAgICAgICAgICBSRUM9JChlY2hvICREVVJBVCszMDAgfCBiYyAg LWwpCiAgICAgICAgICAgICAgICAKICAgICAgICAgICAgICAgCgoJCXByb2Nlc3NfZGVjb2RlCgoK CgpmaQoKCnNsZWVwIDAuNQoKCmRvbmUKCgoKCgo= --0000000000003b52a40575471b22--