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 w2VKnGUS009961 for ; Sat, 31 Mar 2018 22:49:18 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1f2NLb-00086j-UN for rs_out_1@blacksheep.org; Sat, 31 Mar 2018 21:43:35 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1f2NLa-00086Z-5x for rsgb_lf_group@blacksheep.org; Sat, 31 Mar 2018 21:43:34 +0100 Received: from mail-wm0-f54.google.com ([74.125.82.54]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1f2MFR-0008FY-Vv for rsgb_lf_group@blacksheep.org; Sat, 31 Mar 2018 20:33:11 +0100 Received: by mail-wm0-f54.google.com with SMTP id f125so21221528wme.4 for ; Sat, 31 Mar 2018 12:33:06 -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=739kPlqZaO2js7ni8L2ZPm0RQlbazwn+rXzvL2tL5WU=; b=mJLe7H65qNs9R44gycTUjyigQjFw084+s3qMZHogQadICyY/DIfogukGXFgJ7Qhoty kYiMU3Yeg6eVP/yMbZZ4yZaspuNfpKF71ytnsHPFpa10HjxiaOwuEfmJGl97lRK4Dm9P otR3IfdX6omoKNbGKoGo36cJLpD0x6RTS1UBJGHjuO/mmOmrHkNmmPzwnFmz0N5LOCVu +B1lX/YrQN+qkOnoSiwQ+Z2n6E/k0tfF0ehZVK7iA5Q1SbGZsWw+ZDHqhhBG9eeNcYH2 IGteiyWkLWMG6pX4fyohTHC+vumNUDtBSi1lyfCXXu2DcqizpSt4uIslLpkE7XFpygbK z0Fg== 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=739kPlqZaO2js7ni8L2ZPm0RQlbazwn+rXzvL2tL5WU=; b=slLPU4stkw+U2Ll9AXhoe04MKRvybQDwri3z+kaK5qfJxGHMoMJOO2yyPUDhZMRcII QD6IkbLhvDw1H2tl1mS4SExVfq7I7F9kFE1FtbeRaqVzzPrqPPbSRMClo76EUhI67rpk TnaQ+ZoQ2z5PhChEP5a84dGlb30BsPJTHJJpLNNkifB07FaWpIt8KnuriW7/Dz2SBOwz myWBzEtqCgNC5Kj0rkrz3moqCJ2c44kLiD7KgcTLVmqsGj37WcCSTyOCqGWtNsQu9swo +/ZnoPaBKeucRC/h9iu5oj1s3ZD0lBV6AzKvjPbUSjI4hUL0AEl39nrw9UQGm6FNohpR sCYQ== X-Gm-Message-State: AElRT7FNLjxoZ2chnKGFJZANuSrsXzNuRkwZ5r0G93L2r4TjTtcn+AVI pIpjvO4VV8g9AHp1Uk0yoHzTkywQRy1/I5LSAz8= X-Google-Smtp-Source: AIpwx4+dvAQAfOFq8zf0omo/E/dz+rAb29olfvvgCaGYJCtGKw9T6dQ7C+ouvTh1kz7cy9dBgGNRlUUo3hzW7biv/VI= X-Received: by 10.80.178.5 with SMTP id o5mr7049440edd.142.1522524725352; Sat, 31 Mar 2018 12:32:05 -0700 (PDT) MIME-Version: 1.0 References: <16278b89bdd-1795-85@webjasstg-vaa04.srv.aolmail.net> <1627bedf2dc-1795-3ce@webjasstg-vaa29.srv.aolmail.net> In-Reply-To: From: Riccardo Zoli Date: Sat, 31 Mar 2018 19:31:54 +0000 Message-ID: To: LF Group X-Spam-Score: 0.3 (/) 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 the administrator of that system for details. Content preview: Hi LF, Congrats, it's a great achievement, Domenico! You have a perfect setup and an outstanding RX performance. Happy Easter! [...] Content analysis details: (0.3 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (riccardozoli80[at]gmail.com) 0.2 FREEMAIL_ENVFROM_END_DIGIT Envelope-from freemail username ends in digit (riccardozoli80[at]gmail.com) 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: bf14357d5ee2e4a717b88d90ab36122c Subject: Re: LF: EbNaut March 30/31 Content-Type: multipart/alternative; boundary="94eb2c19487e6a9df20568ba69f6" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.4 required=5.0 tests=FROM_ENDS_IN_NUMS,HTML_20_30, HTML_MESSAGE,MAILTO_TO_SPAM_ADDR 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 --94eb2c19487e6a9df20568ba69f6 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi LF, Congrats, it's a great achievement, Domenico! You have a perfect setup and an outstanding RX performance. Happy Easter! All the best 73 de Riccardo IW4DXW Il Sab 31 Mar 2018, 18:17 Domenico IZ7SLZ ha scritto: > Hello Markus, Riccardo and all, > > all last Riccardo's EbNaut transmissions have been copied here in JN80nu > (QRB 630 km) by the 'autodecode' program (log attached). > > Thanks to your today's report Markus, i have noted the time offset (about > +0.005 s) to apply at the recordings in order to decode Rob K3RWR (QRB > 7612 km) and i found only one decode at 03.00 UT of 31-03-2018 ! > Very very weak signal as shown in the attached plot. > > phase 0 0 0 0 0 > carrier phase: -4.1 deg > carrier Eb/N0: -0.4 dB > carrier Es/N0: -11.31 dB > carrier S/N: 17.93 dB in 595.2 uHz, -14.32 dB in 1Hz, -48.30 dB in 2.5kHz > elapsed 75 > found rank 4467 ber 3.4762e-01 Eb/N0 -0.2 M -1.222081757e+01 ph 0 0,0,0,0 > [K3RWR_FM18QI] > > > Setup used here: miniwhip antenna, JRC NRD-92N receiver, 10 MHz reference > oscillator with GPS NEO-8 and Program 'vlfrx-tools'. I made several > attempts to improve the report by changing -a and -t parameters of > 'vtblank' but this seems to be the best report. > > Many thanks for to Rob and Riccardo for the signals and to Paul Nicholson > for FB vlfrx-tools. > > 73 and best wishes for Easter ! > > Domenico, IZ7SLZ > > > > > > Thanks to > > > On 31 March 2018 at 14:00, Markus Vester wrote: > >> Again a strong signal with some error-free decodes from IW4DXW. Also >> found K3RWR finally on 137490 Hz, but only once after 4:00, and another >> near-miss around sunrise after 4:30 (logs attached). >> >> Rethinking my frequency suggestion, it may not be ideal to place >> simultaneous signals from both sides of the pond so near to each other. >> EbNaut employs hard-keyed phase switching both for the transmitter and f= or >> the matched filter in the receive software, so keying sidebands or alias= ing >> from a near station may spill over an adjacent weak signal (although in >> principle this could be minimized by orthogonal modulation, using identi= cal >> symbol timing for all stations, and frequencies spaced by an exact integ= er >> multiple of the common clockrate). But there are also other disadvantage= s, >> like noise-blanker induced crossmodulation and threshold increase. So in >> the end it may be better to use either separate timeslots or separate >> subbands, in analogy to our TA- and Eu-QRSS slots. >> >> Best 73, >> Markus (DF6NM) >> >> >> -----Urspr=C3=BCngliche Mitteilung----- >> Von: Markus Vester >> An: rsgb_lf_group >> Verschickt: Fr, 30. Mrz 2018 23:03 >> Betreff: LF: EbNaut March 29/30 >> >> Last night Mar 29/30, I got excellent decodes from IW4DXW, but >> unfortunately not a single one from K3RWR on 137490 Hz. >> >> Best 73, >> Markus (DF6NM) >> ______________________________________ >> LF: EbNaut attempt at 137495 kHz >> Von: Riccardo Zoli >> An: LF Group >> Datum: Do, 29. Mrz 2018 19:53 >> >> Hi LF >> >> This night, I have scheduled some transmissions every hour (start at >> xx:00). >> >> QRG: 137494.99988 >> 8K19A >> CRC 20 >> 3 sec./sym. >> 6 char >> duration: 29 min. 36 sec. >> >> Reports are welcome. >> >> All the best >> >> 73 de Riccardo IW4DXW >> ______________________________________ >> Re: LF: K3RWR LF EbNaut Trial #2 >> Von: Rob Renoud >> An: rsgb_lf_group >> Datum: Do, 29. Mrz 2018 21:22 >> >> TU all for LF EbNaut reception reports for my 28/29 March 2018 trial of = a >> 12 char, CRC 15, 2 sec symbol 8K19 transmission. The first night result= s >> of this format are very positive! >> >> I will transmit this format again this evening (29/30 Mar) and tomorrow >> (30/31 Mar) on frequency 137.490 KHz. >> >> Reports and comments welcome. Work is starting this weekend on EbNaut >> RX capability for my station. >> >> 73, >> Rob - K3RWR >> >> > --94eb2c19487e6a9df20568ba69f6 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

Hi LF,

Congrats, it's a great a= chievement, Domenico!
You have a perfect setup and a= n outstanding RX performance.

Happy Easter!

All = the best


73 de Riccardo IW4DXW






Il Sab 3= 1 Mar 2018, 18:17 Domenico IZ7SLZ <iz7slz.domenico@gmail.com&= gt; ha scritto:
Hello Markus, Riccardo=C2=A0 and all,

all la= st Riccardo's EbNaut transmissions have been copied here in JN80nu (QRB= 630 km) by the 'autodecode' program (log attached).

T= hanks to your today's report Markus, i have noted the time offset (abou= t +0.005 s) to apply at the recordings=C2=A0 in order to decode Rob K3RWR (= QRB 7612 km) and i found only one decode at 03.00 UT of 31-03-2018 !
Very very weak signal as shown in the attached plot.

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: -4.1 deg
carrier Eb/N0: -0.4 dB
carr= ier Es/N0: -11.31 dB
carrier S/N: 17.93 dB in 595.2 uHz, -14.32 dB in 1H= z, -48.30 dB in 2.5kHz
elapsed 75
found rank 4467 ber 3.4762e-01 Eb/N= 0 -0.2 M -1.222081757e+01 ph 0 0,0,0,0 [K3RWR_FM18QI]


Setup used here: miniwhip antenna, JRC NRD-92N receiver, 10 MHz reference = oscillator with GPS NEO-8 and Program 'vlfrx-tools'. I made several= attempts to improve the report by changing -a and -t parameters of 'vt= blank' but this seems to be the best report.

Many tha= nks for to Rob and Riccardo for the signals and to Paul Nicholson for FB vl= frx-tools.

73 and best wishes for Easter !

<= div>Domenico, IZ7SLZ =C2=A0





Thanks= to=C2=A0

On 31 March 2018 at 14:00, Markus Vester <markusvester@aol.com> wrote:
Again a strong signal with some= error-free decodes from IW4DXW. Also found K3RWR finally on 137490 Hz, but= only once after 4:00, and another near-miss around sunrise after 4:30 (log= s attached).

Rethinking my frequency suggestion, it may not = be ideal to place simultaneous signals from both sides of the pond so near = to each other. EbNaut employs hard-keyed phase switching both for the trans= mitter and for the matched filter in the receive software, so keying sideba= nds or aliasing from a near station may spill over an adjacent weak signal = (although in principle this could be minimized by orthogonal modulation, us= ing identical symbol timing for all stations, and=C2=A0frequencies spaced b= y an exact integer multiple of the common clockrate). But there are also ot= her disadvantages, like noise-blanker induced crossmodulation and threshold= increase. So in the end it may be better to use either separate timeslots = or separate subbands, in analogy to our TA- and Eu-QRSS slots.
<= br>Best 73,
Markus (DF6NM)


-----Urspr=C3=BCngliche Mitteilun= g-----
Von: Markus Vester <markusvester@aol.com>=
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org= >
Verschickt: Fr, 30. Mrz 2018 23:03
Betreff: LF: EbNaut March= 29/30

Last night Mar 29/30, I got excellent decodes= from IW4DXW, but unfortunately not a single one from K3RWR on 137490 Hz.

Best 73,
Markus (DF6NM)
______________________________________<= br>LF: EbNaut attempt at 137495 kHz=C2=A0
Von: Riccardo Zoli <riccardozoli80@gmail.com>
An: LF Group <rsgb_lf_group@blacksheep.org>
Datum: Do, 29. Mrz 2= 018 19:53

Hi LF

This night, I have scheduled some transmission= s every hour (start at xx:00).

QRG: 137494.99988
8K19A
CRC 203 sec./sym.
6 char
duration: 29 min. 36 sec.

Reports are welc= ome.

All the best

73 de Riccardo IW4DXW
____________________= __________________
Re: LF: K3RWR LF EbNaut Trial #2=C2=A0
Von: Rob R= enoud <k3rwr@md.metrocast.net>
An: rsgb_lf_gro= up <rsgb_lf_group@blacksheep.org>
Datum:= Do, 29. Mrz 2018 21:22

TU all for LF EbNaut reception reports for m= y 28/29 March 2018 trial of a 12 char, CRC 15, 2 sec symbol 8K19 transmissi= on.=C2=A0 The first night results of this format are very positive!

I= will transmit this format again this evening (29/30 Mar) and tomorrow (30/= 31 Mar) on frequency 137.490 KHz.

Reports and comments welcome.=C2=A0= =C2=A0 Work is starting this weekend on EbNaut RX capability for my station= .

73,
Rob - K3RWR



--94eb2c19487e6a9df20568ba69f6--