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 x0TN4Lpj025135 for ; Wed, 30 Jan 2019 00:04:29 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1gocES-0000Fs-FA for rs_out_1@blacksheep.org; Tue, 29 Jan 2019 22:51:52 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1gocEL-0000Fj-AT for rsgb_lf_group@blacksheep.org; Tue, 29 Jan 2019 22:51:45 +0000 Received: from mail-ed1-x531.google.com ([2a00:1450:4864:20::531]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91) (envelope-from ) id 1gocEI-00009r-TY for rsgb_lf_group@blacksheep.org; Tue, 29 Jan 2019 22:51:44 +0000 Received: by mail-ed1-x531.google.com with SMTP id h15so17443914edb.4 for ; Tue, 29 Jan 2019 14:51:41 -0800 (PST) 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=9ykR4yglUC5FuBUBE0V2IFMaeDPF+J/mWbItTmFNDaU=; b=op6+qbgEORB2b7ZmdHXUxOkTrxZKLyXMZLvKz7hXjx34sIzXGbf8unPTsLFXB7mbOV ijZ1/+/GY1sYjCn0TFRmTDLS5HiraciHdcntgwfGV0d59ieFhh9jjV0vG2H/pTPNCmdL RPma1FK6r3uclMornWgkDCyJcKnzLCeWDngzI4clRP9AZ6hwGZgn3TkcWLV6ROAccGK/ JkXOKhSMNetKKrhqmWto0Ztq/WPDOIQFWwUSgH6txn9zjx1i/lDO328V2b1W/4Gl6eJ9 dY0AU34nF0uCrN+PTdcMXhjRIm6USJuqBLnVcm8Tw5at5uUWzU8L2MU8F7u37WbaUQoR lcNQ== 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=9ykR4yglUC5FuBUBE0V2IFMaeDPF+J/mWbItTmFNDaU=; b=PCETG2+ryLldTGE5qHs1EJCZkPd5Uqb0jvb4MCUSxxWO59J2F8PucTnwG/nHSpL1rF kyF4Uv34DDvFS9pFQoeypLCqEEFCE5R+hBZAL6rYAwlPlPmX1JX5JAeXpQYpJk9gTAUz mLNn8cAlp+gKr1ZgKUriZYJC0c8tjz/eBzD5LpcDFcJDbJfaVeQD8p2mVnqcHpyTjRAJ bL5d1Ii1H77hyyphmlVwc8/8bqP8GnFt0oz8w44D0eZGkvOEnJQZb3O+FibX3SDbwf6+ L+B/tys+4sJxy9IZS+qUFzmBk61j43USZ6Wh1vYiOfhuXoTFW8D3QlQ8KrVFoT9bIHZ3 SvZw== X-Gm-Message-State: AJcUukc/thY6J73Oq9NZj4KmYt5v0HNQuUwUdTR6MM5ym8rDJPRJQojY GsuURpatas6AaNfD3rDnhPBPp8+S6ZiRP26ex2EeHw== X-Google-Smtp-Source: ALg8bN7Egn/Mg93zLaLlokkgutCQqQj+erawjZpKiNK6GWjq6oQHXM96qsOH0CePhFvLtT/riZjLEnbYS+UW+8ABZLM= X-Received: by 2002:a17:906:a4ce:: with SMTP id cc14mr19749888ejb.147.1548802300518; Tue, 29 Jan 2019 14:51:40 -0800 (PST) MIME-Version: 1.0 References: <1690723859.1653766.1548539148821.ref@mail.yahoo.com> <1690723859.1653766.1548539148821@mail.yahoo.com> <1UTCWet7ZZ.BO7EfIhLRDp@optiplex980-pc> <02DD7090-9039-4E36-ADD2-345B3753AF78@md.metrocast.net> In-Reply-To: From: Riccardo Zoli Date: Tue, 29 Jan 2019 23:51:27 +0100 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: Domenico, Jay, Rob Many thanks again for report! That 0.4s, as evidenced by Domenico, indicates that NTP service running on my PC was sometimes insufficient to ensure an adequate time precision. I'd try soon to improve [...] Content analysis details: (0.3 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:531 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 (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 X-Scan-Signature: a3588b8e208cb43b8cea35953aaed717 Subject: Re: LF: Ebnaut tonite from JN80 Content-Type: multipart/alternative; boundary="000000000000f327ce0580a0a262" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.3 required=5.0 tests=FROM_ENDS_IN_NUMS,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 --000000000000f327ce0580a0a262 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Domenico, Jay, Rob Many thanks again for report! That 0.4s, as evidenced by Domenico, indicates that NTP service running on my PC was sometimes insufficient to ensure an adequate time precision. I'd try soon to improve it using directly the NMEA data. All the best 73 de Riccardo IW4DXW Il giorno Mar 29 Gen 2019, 19:25 Domenico IZ7SLZ ha scritto: > LF, EbNauters > > Rob has sent his wave file coming from the Spectrum Lab EbNaut recorder > > With the help of the linux programs vtwavex i have converted it in the > vlfrx-tools native .vt file and i have attempted the decode. > > Indeed the only possible decode is Riccardo's transmission of > 2108-01-27_23:00 obtained with 0.4s of time offset > > initial reference phase 58.9 amplitude 7.760e-02 > phase 0 0 0 0 0 > found rank 0 ber 3.8095e-01 *Eb/N0 1.4 M* -1.078971028e+00 ph 0 0,0,0,0* > [73]* > carrier phase: 2.3 deg > *carrier Eb/N0: 3.2 dB* > carrier Es/N0: -11.53 dB > carrier S/N: 13.73 dB in 496.0 uHz, -19.31 dB in 1Hz, -53.29 dB in 2.5kHz > > Then I have investigated on failed decodes on my frequency slot at that > hour. > Knowning the message 'IZ7SLZ' and using the signal analysis function of > EbNaut I found (with +0.001 Hz of frequency offset): > > carrier phase: -113.4 > *carrier Eb/N0: -7.2 dB* > carrier S/N: 8.09 dB in 595.2 uHz, -24.16 dB in 1Hz, -58.14 dB in 2.5kHz > > Maybe >6 dB are necessary to pass my full callsign in 30 minute of > transmission. > > Thanks again Rob for the attempt. > > 73, Domenico IZ7SLZ > > > > On Mon, 28 Jan 2019 at 15:09, Domenico IZ7SLZ > wrote: > >> Rob, >> that 'wave' file should be ok. >> >> Paul Nicholson includes the program 'vtwavex' in his vlfrx-tools that ca= n >> extract signals from a WAV file. >> >> Thanks >> >> Domenico IZ7SLZ >> >> Let >> >> On 28 Jan 2019 15:00, "Rob Renoud" wrote: >> >> Domenico, >> >> The single file that I saved for last night was the decimated FFT file >> (.wav file) using the Spectrum Lab Wave Recorder. The file covers the >> entire RX session starting at 2059 UTC and runs until I stopped recordin= g >> about 1030 UTC this morning (sample rate: 10.766602/sec, RX freq: 1000.0= 00 >> Hz (137545.000 Hz RF center frequency), File Size: 3.77 MB). >> >> Will this file work for you? >> >> 73, >> Rob >> >> >> >> >> >> On Jan 28, 2019, at 07:29, Domenico IZ7SLZ >> wrote: >> >> Thanks dear friends Jay and Rob for the your efforts on trying to decode >> my small signal. >> >> Is it possible to have from you the Spectrum Lab raw files with the info >> needed to convert them (using DF6NM's program) in 'wave' format (i.e. >> sample rate, FFT lenght, center frequency) or can you share the files >> already converted in 'wave' format ? >> I would like to attempt a decode using vlfrx-tools: with diagnostic tool= s >> -f15 -f16 -M 'IZ7SLZ' i will look for the missing dB's. >> Thanks in advance. >> Domenico IZ7SLZ >> >> On Mon, 28 Jan 2019 at 13:18, Rob Renoud wrote: >> >>> Domenico and Riccardo, >>> >>> Riccardo: 1 Decode at 2300 UTC >>> Rank 0; cEb/N0 3.2; Eb/N0 0.9; MSG 73, BER 38.7; Ref Phase 0,0,0,0 >>> >>> Domenico: Sorry, no decodes. >>> >>> 73, >>> Rob >>> >>> On Jan 28, 2019, at 06:06, "jrusgrove@comcast.net" < >>> jrusgrove@comcast.net> wrote: >>> >>> Domenico >>> >>> Sorry to report no decodes ;~( . >>> >>> Jay W1VD >>> >>> >>> >>> *----- Original Message -----* >>> *From:* Domenico IZ7SLZ >>> *Reply-To:* >>> *To:* >>> *Sent:* 1/27/2019 1:32:37 PM >>> *Subject:* Re: LF: Ebnaut tonite from JN80 >>> ------------------------------ >>> Rob, Jay, LF >>> >>> Another attempt tonight. Same parameters (6 char, 3 s/sym, crc16, 8K19A= ) >>> Qrq is 137545.2 Hz >>> (The script is ok now!!) >>> Every hour from 21.00 utc 'til 07 utc of tomortow) >>> >>> 73, Domenico IZ7SLZ >>> >>> On 27 Jan 2019 15:25, "Rob Renoud" wrote: >>> >>> Domenico, >>> >>> No decodes as you were outside of my receive range. >>> >>> 73, >>> Rob >>> >>> On Jan 27, 2019, at 05:27, Domenico IZ7SLZ >>> wrote: >>> >>> LF, >>> my previous transmission's announcement was wrong. >>> >>> Since i have run an obsolete setup file, the transmissions succeeded bu= t >>> on 137540.0 Hz (instead of 137545.2 Hz) with 6 >>> char, 3 s, 8K19A, CRC16. >>> I hope that receiving attempts can be done anyway. Sorry for the troubl= e. >>> >>> I will send now, via daytime propagation, an 'hope' message on 137540 >>> Hz, 38 characters 0.5 s/sym 8K19A, CRC16 >>> at 10:30, 11:30, 12:30, 13:30. >>> >>> Finger crossed also for that situation ! >>> >>> 73, Domenico IZ7SLZ >>> >>> >>> >>> >>> >>> >>> >>> On Sun, 27 Jan 2019 at 00:24, Domenico IZ7SLZ >>> wrote: >>> >>>> Yes Markus, LF >>>> >>>> Confirm: 6 characters. >>>> >>>> Apologies for the clerical error and thanks Markus for the advice. >>>> >>>> 73, Dom IZ7SLZ >>>> >>>> On Sat, 26 Jan 2019, 22:49 Markus Vester >>> >>>>> Hi Domenico, >>>>> >>>>> 6 characters I would guess? >>>>> >>>>> 73, Markus >>>>> >>>>> >>>>> -----Urspr=C3=BCngliche Mitteilung----- >>>>> Von: Domenico IZ7SLZ >>>>> An: rsgb_lf_group >>>>> Verschickt: Sa, 26. Jan. 2019 19:55 >>>>> Betreff: LF: Ebnaut tonite from JN80 >>>>> >>>>> LF, Ebnauteers >>>>> >>>>> An attempt to pass my complete call sign with EbNaut on 137545.2 Hz. >>>>> >>>>> 5 char, 3 s, 8K19A, CRC16, duration 28', every hour from 21.00 UT to >>>>> 08.00 UT of tomorrow. >>>>> 73, Domenico IZ7SLZ >>>>> >>>> >>> >> --000000000000f327ce0580a0a262 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

Domenico, J= ay, Rob

Many thanks agai= n for report!
That 0.4s, as evidenced by Domenico, i= ndicates that NTP service running on my PC was sometimes insufficient to en= sure an adequate time precision. I'd try soon to improve it using direc= tly the NMEA data.

All t= he best

73 de Riccardo I= W4DXW


Il giorno Mar 29 Gen 2019, 19= :25 Domenico IZ7SLZ <iz7slz.domenico@gmail.com> ha scritto= :
LF, EbNauters

Rob has sent = his wave file coming from the Spectrum Lab EbNaut recorder

With the help of the linux programs vtwavex i have converted it in= the vlfrx-tools native .vt file and i have attempted the decode.

Indeed the only possible decode is Riccardo's transmiss= ion of 2108-01-27_23:00 obtained with 0.4s of time offset

initial referen= ce phase 58.9 amplitude 7.760e-02
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
found rank= 0 ber 3.8095e-01 Eb/N0 1.4 M -1.078971028e+00 ph 0 0,0,0,0 [73]<= /b>
carrier phase: 2.3 deg
carrier Eb/N0: 3.2 dB
carrier Es= /N0: -11.53 dB
carrier S/N: 13.73 dB in 496.0 uHz, -19.31 dB in 1Hz, -53= .29 dB in 2.5kHz

Then I have investigat= ed on failed decodes on my frequency slot at that hour.
Knowning = the message 'IZ7SLZ' and using the signal analysis function of EbNa= ut I found (with +0.001 Hz of frequency offset):

c= arrier phase: -113.4
carrier Eb/N0: -7.2 dB
carrier S/N: 8.09 = dB in 595.2 uHz, -24.16 dB in 1Hz, -58.14 dB in 2.5kHz

Maybe >6 dB=C2=A0 are necessary to pass my full callsign in 30 = minute of transmission.

Thanks again Rob for the a= ttempt.

73, Domenico IZ7SLZ



On= Mon, 28 Jan 2019 at 15:09, Domenico IZ7SLZ <iz7slz.do= menico@gmail.com> wrote:
Rob,=C2=A0
that 'wav= e' file should be ok.

Paul= Nicholson includes the program 'vtwavex' in his vlfrx-tools that c= an extract signals from a WAV file.

Thanks=C2=A0

Domenico IZ7SLZ=C2=A0

Let
=

On 28 Jan 2019 15:00, "Rob Renoud" <k3rwr@md.metrocast.net> wrote:
Domenico,

<= /div>
The single file that I saved for last night was the d= ecimated FFT file (.wav file) using the Spectrum Lab Wave Recorder.=C2=A0 T= he file covers the entire RX session starting at 2059 UTC and runs until I = stopped recording about 1030 UTC this morning (sample rate: 10.766602/sec, = RX freq: 1000.000 Hz (137545.000 Hz RF center frequency), File Size: 3.77 M= B). =C2=A0 =C2=A0

Will thi= s file work for you?

73,
Rob

<= br>



On Jan 28, 2019, at 07:29, Domenico IZ7SLZ <iz7slz.domenico@gmail.com> wrote:

=
Thanks dea= r friends Jay and Rob for the your efforts on trying to decode my small sig= nal.

Is it possible to have from you the Spectrum = Lab raw files with the info needed to convert them (using DF6NM's progr= am)=C2=A0 in 'wave' format (i.e. sample rate, FFT lenght, center fr= equency) or can you share the files already converted in 'wave' for= mat ?
I would like to attempt a decode using vlfrx-tools: wit= h diagnostic tools -f15 -f16 -M 'IZ7SLZ' i will look for the missin= g dB's.
Thanks in advance.
Domenico IZ7SLZ
=

On Mon, 28 Jan 2019 at 13:18,= Rob Renoud <k3rwr@md.metrocast.net= > wrote:
=
Domenico and Ricc= ardo,

Riccardo: =C2=A01 De= code at 2300 UTC
Rank 0; cEb/N0 3.2; Eb/N0 0.9; MSG 7= 3, BER 38.7; Ref Phase 0,0,0,0

Domenico: =C2=A0Sorry, no decodes.

73,
Rob

On Ja= n 28, 2019, at 06:06, "jrusgrove@c= omcast.net" <jrusgrove@comc= ast.net> wrote:

Domenico
=C2=A0
Sorry to report no decodes ;~( .
=C2=A0
Jay W1VD
=C2=A0
=C2=A0
----- Original Message -----
From: Domenico IZ7SLZ <iz7slz.domenico@gmail.com>
Sent: 1/27/2019 1:32:37 PM
Subject: Re: LF: Ebnaut tonite from JN80
Rob, Jay, LF

Another attempt tonight. Same parameters (6 char, 3 s/sym, crc16, 8K19= A)
Qrq is 137545.2 Hz=C2=A0
(The script is ok now!!)
Every hour from 21.00 utc 'til 07 utc of tomortow)

73, Domenico IZ7SLZ=C2=A0

On 27 Jan 2019 15:25, "Rob Renoud" <= ;k3rwr@md.metrocast.net> wrote:=
Domenico,

No decodes as you were outside of my receive range.

73,
Rob

On Jan 27, 2019, at 05:27, Domenico IZ7SLZ <iz7slz.domenico@gmail.com&g= t; wrote:

LF,
my previous=C2=A0 transmission's announcement was wrong.

Since i have run an obsolete setup file, the transmissions succeeded b= ut on 137540.0 Hz=C2=A0 (instead of 137545.2 Hz) with 6
char, 3 s, 8K19A, CRC16.
I hope that receiving attempts can be do= ne anyway. Sorry for the trouble.

I will send now, via daytime propagation, an 'hope' message on= 137540 Hz, 38 characters 0.5 s/sym 8K19A, CRC16
at 10:30, 11:30, 12:30, 13:30.

Finger crossed also for that situation !

73, Domenico IZ7SLZ







On Sun, 27 Jan 2019 at = 00:24, Domenico IZ7SLZ <iz7slz.domenico@gmail.com> wrote:
Yes Markus, LF

Confirm: 6 characters.

Apologies for the clerical error and thanks Markus for the advice.

73, Dom IZ7SLZ

On Sat, 26 Jan 2019, 22:49 Markus Vester <markusvester@aol.com wrote:
Hi Domenico,

6 characters I would guess?

73, Markus

-----Urspr=C3=BCngliche Mitteilung-----
Von: Domenico IZ7SLZ &l= t;iz7slz.dome= nico@gmail.com>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org><= br>Verschickt: Sa, 26. Jan. 2019 19:55
Betreff: LF: Ebnaut tonite from J= N80

LF, Ebnauteers

An attempt to pass my complete call sign with EbNaut on 137545.2 Hz.

5 char, 3 s, 8K19A, CRC16, duration 28', every hour from 21.00 UT = to 08.00 UT of tomorrow.
73, Domenico IZ7SLZ


--000000000000f327ce0580a0a262--