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 w8OIgQHJ000449 for ; Mon, 24 Sep 2018 20:42:28 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1g4Vcp-0004pz-N2 for rs_out_1@blacksheep.org; Mon, 24 Sep 2018 19:30:27 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1g4Vco-0004pq-Ny for rsgb_lf_group@blacksheep.org; Mon, 24 Sep 2018 19:30:26 +0100 Received: from mail-ot1-x335.google.com ([2607:f8b0:4864:20::335]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91_59-0488984) (envelope-from ) id 1g4Vcm-0001GM-OV for rsgb_lf_group@blacksheep.org; Mon, 24 Sep 2018 19:30:25 +0100 Received: by mail-ot1-x335.google.com with SMTP id m23-v6so3320543otf.0 for ; Mon, 24 Sep 2018 11:30:24 -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=KlkUZNpvq5BFrQbTEXG2Ag1koXm4sXqBXvCsSHCCsU0=; b=CooBuiW/WBF4n6MLQaIVsvlRRncaEUMrrZW5G33dDACvm7wWiq2CNF5PduTUW0HQJp QtiQ80M1ucIyBET1Mg9Ph7i0NGn9hytY6OLyEyGYV8k0t7QvJQ8OGup+oJ9zvrbByjO/ 05eDTy+SoDRVklwiw3hBHUvr5iZM8VTLaAL0EysMZk6Pk18o2CnSq5UNAm7TBLusJaDn 3DWcXMzFqTd7BQJyHkSViuj1cc+q+gbve9z8M4FN2X5+X/Vklwwc2VU3BfSN3LRBA42d iGkWOFCBUHXijoSdgIp6y6DF9y7C+8kHIsJbFPzmyMj08HfOrsOtE40TcIDGDxm7JY+C e5lg== 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=KlkUZNpvq5BFrQbTEXG2Ag1koXm4sXqBXvCsSHCCsU0=; b=huKbfFU+e4NgpLeAawovi9lB6cDcgmKhxDm5EoHC40+kUyenlzf7i6BR6ECFZVlW5k iHWMvjmK9WHmHgTvlu/AfoT1IfVp/vdH00fi/Er5EUUSauKp/WgsECnYcJ+n0n5Xfl3y A1aYCGQsTL+xXsixaQVeoi0FoNteY/tzmEzhQeQlJUZhnNCh88sqmT3LSNMcIer/9nNK D0tE9MfF8jDpiQWgHVmUdJeK2VB3mppEhyf09Y2hpIpH5IKvXoij0k/jsqVxRKpnL4TN kOMoX7z+dE//Ko9raPUyyjrnQGew2zLen1gicWEON8Ea8vtNRiX7MVz5i/CYsTDW4xUE pOwA== X-Gm-Message-State: ABuFfojDaDA73gbDCXIoaUEnh+8UIa8tJ4hiUS6NaWwATz8ZAXOeidnK fWTSlq25jzfp4R4uNxwOSAovuMY4HGDywmobGt+qwx2G X-Google-Smtp-Source: ACcGV60RKaQAifTaNrKAEjLqhCLGCsYRGoIc4QceFAynH3pO3BoWGLCb+NsCHTtW6LCba8JdCIQjArsTxYDMFh56gME= X-Received: by 2002:a9d:3e52:: with SMTP id h18-v6mr59576otg.210.1537813822233; Mon, 24 Sep 2018 11:30:22 -0700 (PDT) MIME-Version: 1.0 References: <6DB8451D7F3D3947A5918808A59621EA0863C3CF@servigilant.vigilant.local> <6DB8451D7F3D3947A5918808A59621EA0863EF68@servigilant.vigilant.local> In-Reply-To: <6DB8451D7F3D3947A5918808A59621EA0863EF68@servigilant.vigilant.local> From: Domenico IZ7SLZ Date: Mon, 24 Sep 2018 20:29:44 +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 Luis and all, there are good news for you. I was investigating in your transmissions and, just for my error, i set, in the decoder routine, the wrong date of 23rd september. I catch your message at 00.00 and 00.30 ! [...] 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:f8b0:4864:20:0:0:0:335 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: 0ec4100a7eb09b79f89f9c2085e5ddc1 Subject: Re: LF: EA5DOM EbNaut Tx test in 137.485 Content-Type: multipart/alternative; boundary="0000000000009ae0ee0576a22e88" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.6 required=5.0 tests=HTML_20_30,HTML_FONT_BIG, 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 --0000000000009ae0ee0576a22e88 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hello Luis and all, there are good news for you. I was investigating in your transmissions and, just for my error, i set, in the decoder routine, the wrong date of 23rd september. I catch your message at 00.00 and 00.30 ! initial reference phase 54.1 amplitude 1.763e+00 phase 0 0 0 0 0 carrier phase: -2.8 deg carrier Eb/N0: 9.9 dB carrier Es/N0: -7.26 dB carrier S/N: 22.26 dB in 558.0 uHz, -10.27 dB in 1Hz, -44.25 dB in 2.5kHz elapsed 33 phase 1 180 180 180 180 found rank 0 ber 2.9799e-01 Eb/N0 8.7 M -4.760565567e+01 ph 0 0,0,0,0 [DOM] initial reference phase 78.1 amplitude 1.387e+00 phase 0 0 0 0 0 carrier phase: -6.1 deg carrier Eb/N0: 8.6 dB carrier Es/N0: -8.56 dB carrier S/N: 20.96 dB in 558.0 uHz, -11.57 dB in 1Hz, -45.55 dB in 2.5kHz elapsed 33 found rank 0 ber 3.2478e-01 Eb/N0 7.4 M -3.836220932e+01 ph 0 0,0,0,0 [DOM] Do you confirm the transmissions at that time ? Can you tell the power used ? If confirmed, seems that your setup now is ok. Many compliments. I have programmed again my autodecoder with your last parameters (3 ch, 2s, CRC18,16K21A 136485 Hz). Hope to catch you 'live' ! 73, Domenico IZ7SLZ On Sat, 22 Sep 2018 at 14:14, VIGILANT Luis Fern=C3=A1ndez wrote: > Ciao Domenico > > Thank you for the message and extended explanations > > Big SORRY :( > > Yes, the CRC was 18, not 19 as wrongly indicated in my email, and the tim= e > lenght is about 28 minutes > > Please check again last night files to see if there is a decode > > 73 de Luis > EA5DOM > > ------------------------------ > *De:* owner-rsgb_lf_group@blacksheep.org [ > owner-rsgb_lf_group@blacksheep.org] en nombre de Domenico IZ7SLZ [ > iz7slz.domenico@gmail.com] > *Enviado:* s=C3=A1bado, 22 de septiembre de 2018 10:57 > *Para:* rsgb_lf_group@blacksheep.org > *Asunto:* Re: LF: EA5DOM EbNaut Tx test in 137.485 > > Hello Luis and all, > > returned home today and now it's time to 'play' a little bit with our > fantastic 'hobby' ! > > I have tried to search for your signal in the recordings. > > This is very easy to do with linux and vlfrx-tools. In fact i'm recording > the audio from the LF receiver with the program 'vtwrite'. This program > creates its proper files in a dedicated hard disk (used only for the > storage) . I setted vtwrite to create one file each 24 hour. It is very > confortable to retry the raw data by using 'vtread' program, just specify > the date, the duration and the location of the storage directory. In this > way, it is possible to post-processings any possible transmissions in the > audio band recordered. You can 'play' anytime the raw file and change the > parameters, offsets or NB settings. > Nice tools, thanks again to Paul Nicholson. > > But, sorry to say that, till now, the search of your 'DOM' message is > without results. > Maybe one of the parameters you have announced is different from that you > have really used. That's becouse the duration for > 16K21A, CRC=3D19, 3 Chars, 2 (total 912 bits) is more than 30 minutes for > T=3D2s and maybe some symbols were not transmitted due to your 'half hour > beaconing'. > > There is also a lack of sensitivity on LF on my receiver. Noise floor, > also during nightime, is very high (one week ago was less) and i suspect > some hardware trouble here (groundings or a new local 'macoomba' noise). > Investigation is started. > > I have a second receiver, GPS referenced, tuned on MF op8 band > (478.450-478.550) https://www.qsl.net/iz7slz/OPDS8/opds8.jpg > Interesting to see and analyze some OP8 signals on that band. The opds > program (from Markus DF6NM) is giving some interesting results ( > https://www.qsl.net/iz7slz/OPDS8/DETECTED8.TXT ) > > Dear Luis, can i suggest you (or other operators) to try an EbNaut > transmission on that MF band ? > Autodecoder webpage is setted for R3RWR transmissions now, but it's easy > to change parameters. You can transmitt anytime, since also MF band is > recordered in a separate storage media. > > Waiting for your comment. > > 73, Domenico IZ7SLZ > > > > > On Fri, 21 Sep 2018 at 10:27, VIGILANT Luis Fern=C3=A1ndez > wrote: > >> Hi EbNaut >> >> >> >> Yesterday installed the PA and my intention was to transmit with the >> lowest possible power (about 24W at 12V in LOW mode) >> >> but Murphy confirmed that the lowest possible power =E2=80=A6..is always= zero. >> Something went wrong L >> >> >> >> Anyway cound trim the antenna to resonance. It was a couple of KHz down. >> And using the mosfet driver at 14V >> >> could see some improvements in output level and the device clearly >> heating. No Vrms meter available so I can=E2=80=99t >> >> confirm the output power or current for this transmissions >> >> >> >> Trying to check if there could be a decode at Domenico=E2=80=99s EbNaut = decoder I >> transmitted all night >> >> with the usual parameters for weak signal in a less than half an hour >> message. May be Stefan can >> >> use the files he is recording and check for the transmission >> >> >> >> >> >> >> >> *f =3D 137485.000 Hz Start time: 20.SEP.2018 19:00:00 UTC up to 05:30:0= 0 >> UTC (message starting at minute 00 and 30 every hour) Symbol period: 2s >> Characters: 3 CRC bits:** 19* >> >> >> * Coding 16K21A * >> >> The message is =E2=80=9CDOM=E2=80=9D, so if anyone wants to correlate th= e received signal >> and get some extra dBs. This is extremely >> >> weak signal. The input power to the antenna must be well under 1W, so th= e >> ERP must be very low >> >> >> >> There was no decode at Domenico=E2=80=99s grabber >> >> https://www.qsl.net/iz7slz/EBNAUT/DECODED.TXT >> >> >> >> Just for measurement of signal I can run a permanent carrier tonight if >> this can help >> >> >> >> 73 de Luis >> >> EA5DOM >> >> >> > --0000000000009ae0ee0576a22e88 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hello Luis and all,

there are good news for you. I was investigating in your transmiss= ions and, just for my error, i set, in the decoder routine,=C2=A0 the wrong= date of 23rd september. I catch your message at 00.00 and 00.30 !

initial reference phase 54.1 amplitude 1.763e+00
phase= =C2=A0=C2=A0 0=C2=A0=C2=A0=C2=A0 0=C2=A0=C2=A0=C2=A0 0=C2=A0=C2=A0=C2=A0 0= =C2=A0=C2=A0=C2=A0 0
carrier phase: -2.8 deg
carrier Eb/N0: 9.9 dBcarrier Es/N0: -7.26 dB
carrier S/N: 22.26 dB in 558.0 uHz, -10.27 dB i= n 1Hz, -44.25 dB in 2.5kHz
elapsed 33
phase=C2=A0=C2=A0 1=C2=A0 180= =C2=A0 180=C2=A0 180=C2=A0 180
found rank 0 ber 2.9799e-01 Eb/N0 8.7 M -= 4.760565567e+01 ph 0 0,0,0,0 [DOM]


initial reference phase 78.1 = amplitude 1.387e+00
phase=C2=A0=C2=A0 0=C2=A0=C2=A0=C2=A0 0=C2=A0=C2=A0= =C2=A0 0=C2=A0=C2=A0=C2=A0 0=C2=A0=C2=A0=C2=A0 0
carrier phase: -6.1 deg=
carrier Eb/N0: 8.6 dB
carrier Es/N0: -8.56 dB
carrier S/N: 20.96 = dB in 558.0 uHz, -11.57 dB in 1Hz, -45.55 dB in 2.5kHz
elapsed 33
fou= nd rank 0 ber 3.2478e-01 Eb/N0 7.4 M -3.836220932e+01 ph 0 0,0,0,0 [DOM]

Do you confirm the transmissions at that time ? = Can you tell the power used ?

If confirmed, seems = that your setup now is ok. Many compliments. I have programmed again my aut= odecoder with your last parameters (3 ch, 2s, CRC18,16K21A 136485 Hz).
Hope to catch you 'live' !

73, Domen= ico IZ7SLZ


On Sat, 22 Sep 2018 at 14:14,= VIGILANT Luis Fern=C3=A1ndez <luis@= vigilant.es> wrote:
Ciao Domenico

Thank you for the message and extended explanations

Big SORRY :(

Yes, the CRC was 18, not 19 as wrongly indicated in my email, and the = time lenght is about 28 minutes=C2=A0

Please check again last night files to see if there is a decode

73 de Luis
EA5DOM

De: owner-rsgb_lf_group@b= lacksheep.org [owner-rsgb_lf_group@blacksheep.org] en nombre de Domeni= co IZ7SLZ [i= z7slz.domenico@gmail.com]
Enviado: s=C3=A1bado, 22 de septiembre de 2018 10:57
Para: rsgb_lf_group@blacksheep.org
Asunto: Re: LF: EA5DOM EbNaut Tx test in 137.485

Hello Luis and all,

returned home today and now it's time to 'play' a little b= it with our fantastic 'hobby' !

I have tried to search for your signal in the recordings.

This is very easy to do with linux and vlfrx-tools. In fact i'm re= cording the audio from the LF receiver with the program 'vtwrite'. = This program creates its proper files in a dedicated hard disk (used only f= or the storage) . I setted vtwrite to create one file each 24 hour.=C2=A0 It is very confortable to retry the raw data = by using 'vtread' program, just specify the date, the duration and = the location of the storage directory. In this way, it is possible to post-= processings any possible transmissions in the audio band recordered. You can 'play' anytime the raw file and cha= nge the parameters, offsets or NB settings.
Nice tools, thanks again to Paul Nicholson.

But, sorry to say that,=C2=A0 till now,=C2=A0 the search of your '= DOM' message is without results.
Maybe one of the parameters you have announced is different from that = you have really used. That's becouse the duration for
16K21A, CRC=3D19, 3 Chars, 2 (total 912 bits) is more than 30 minutes = for T=3D2s and maybe some symbols were not transmitted due to your 'hal= f hour beaconing'.

There is also a lack of sensitivity on LF on my receiver. Noise floor,= also during nightime, is very high (one week ago was less)=C2=A0 and i sus= pect some hardware trouble here (groundings or a new local 'macoomba= 9; noise). Investigation is started.

I have=C2=A0 a second receiver, GPS referenced, =C2=A0 tuned on MF op8= band (478.450-478.550) =C2=A0 ht= tps://www.qsl.net/iz7slz/OPDS8/opds8.jpg
Interesting to see and analyze some OP8 signals on that band. The opds= program (from Markus DF6NM) is giving some interesting results ( https://www.qsl.net/iz7slz/OPDS8/DETECTED8.TXT )

Dear Luis, can i suggest you (or other operators) to try an EbNaut tra= nsmission on that MF band ?
Autodecoder webpage is setted for R3RWR transmissions now, but it'= s easy to change parameters. You can transmitt anytime, since also MF band = is recordered in a separate storage media.

Waiting for your comment.

73, Domenico IZ7SLZ




On Fri, 21 Sep 2018 at 10:27, VIGILANT Luis Fern=C3=A1ndez= <luis@vigilant.es= > wrote:

Hi EbNaut

=C2=A0

Yesterday installed the PA and = my intention was to transmit with the lowest possible power (about 24W at 1= 2V in LOW mode)

but Murphy confirmed that the l= owest possible power =E2=80=A6..is always zero. Something went wrong L

=C2=A0

Anyway cound trim the antenna t= o resonance. It was a couple of KHz down. And using the mosfet driver at 14= V

could see some improvements in = output level and the device clearly heating. No Vrms meter available so I c= an=E2=80=99t

confirm the output power or cur= rent for this transmissions

=C2=A0

Trying to check if there could = be a decode at Domenico=E2=80=99s EbNaut decoder I transmitted all night=

with the usual parameters for w= eak signal in a less than half an hour message. May be Stefan can=

use the files he is recording a= nd check for the transmission

=C2=A0

f =3D 137485.000 Hz
Start time: 20.SEP.2018=C2=A0 19:00:00 UTC up to 05:30:00 UTC (message star= ting at minute 00 and 30 every hour)
Symbol period: 2s
Characters: 3
CRC bits: 19<= /span>
Coding 16K21A

The message is =E2=80=9CDOM=E2= =80=9D, so if anyone wants to correlate the received signal and get some ex= tra dBs. This is extremely

weak signal. The input power to= the antenna must be well under 1W, so the ERP must be very low

=C2=A0

There was no decode at Domenico= =E2=80=99s grabber

https://www.qsl.net/iz7slz/EBN= AUT/DECODED.TXT

=C2=A0

Just for measurement of signal = I can run a permanent carrier tonight if this can help=

=C2=A0

73 de Luis=

EA5DOM

=C2=A0

--0000000000009ae0ee0576a22e88--