Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, HTML_MESSAGE,RCVD_IN_DNSWL_MED,RCVD_IN_SORBS_SPAM,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 X-Spam-DCC: EATSERVER: mailn 1166; Body=2 Fuz1=2 Fuz2=2 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by lipkowski.org (8.14.4/8.14.4/Debian-8+deb8u1) with ESMTP id v18MfVPs007631 for ; Wed, 8 Feb 2017 23:41:32 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1cbarK-0004pw-Rx for rs_out_1@blacksheep.org; Wed, 08 Feb 2017 22:37:06 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1cbarD-0004pn-8e for rsgb_lf_group@blacksheep.org; Wed, 08 Feb 2017 22:36:59 +0000 Received: from smtp03.smtpout.orange.fr ([80.12.242.125] helo=smtp.smtpout.orange.fr) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.87) (envelope-from ) id 1cbar9-0001w7-RB for rsgb_lf_group@blacksheep.org; Wed, 08 Feb 2017 22:36:58 +0000 Received: from hat.home ([83.112.49.106]) by mwinf5d58 with ME id iNct1u00D2HUFob03NctAo; Wed, 08 Feb 2017 23:36:54 +0100 X-ME-Helo: hat.home X-ME-Date: Wed, 08 Feb 2017 23:36:54 +0100 X-ME-IP: 83.112.49.106 Date: Wed, 8 Feb 2017 23:36:52 +0100 From: Michel Brunel Message-ID: <192944618.20170208233652@mterrier.net> To: rsgb_lf_group@blacksheep.org In-Reply-To: <223efe19-898f-a0cc-e260-471bdefc0dd0@gmail.com> References: <223efe19-898f-a0cc-e260-471bdefc0dd0@gmail.com> MIME-Version: 1.0 X-Scan-Signature: 18c242620d7d7b91a1caf5740aa3e326 Subject: Re: LF: Testing EbSynth on LF Content-Type: multipart/alternative; boundary="----------0871EB23F1898F4F7" 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 X-Scanned-By: MIMEDefang 2.75 Status: RO X-Status: X-Keywords: X-UID: 10515 ------------0871EB23F1898F4F7 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hello Domenico, received so far with Paul's vlfrx-tools: 20:00 UTC vtread -T2017-02-08_20:00:00,+900 ./ | vtmult -f 1495 | vtresample -r 240 |= vtraw -oa | ebnaut -d -N12 -p 8K19A -S1 -r240 -c2 -L20000 -PS -T0 -F0.000= 626 found rank 0 ber 9.7877e-02 Eb/N0 10.2 M -1.569956207e+02 [73 DE IZ7SLZ] ps= [ 0 0 0 0 0] 20:30 UTC vtread -T2017-02-08_20:30:00,+900 ./ | vtmult -f 1495 | vtresample -r 240 |= vtraw -oa | ebnaut -d -N12 -p 8K19A -S1 -r240 -c2 -L20000 -PS -T0 -F0.000= 626 found rank 0 ber 0.0000e+00 Eb/N0 70.9 M -2.899937134e+02 [73 DE IZ7SLZ] ps= [ 0 0 0 0 0] 21:30 UTC vtread -T2017-02-08_21:30:00,+900 ./ | vtmult -f 1495 | vtresample -r 240 |= vtraw -oa | ebnaut -d -N12 -p 8K19A -S1 -r240 -c2 -L20000 -PS -T0 -F0.000= 626 found rank 0 ber 4.1274e-02 Eb/N0 12.7 M -1.574096375e+02 [73 DE IZ7SLZ] ps= [ 1 180 180 180 180] Now I'm using a rubidium reference (10 MHz) not the GPSDO anymore. The 1PPS= for the sound card is derived from the rubidium as well.=20 This requires an initial sync from a GPS 1PPS to align the rubidium 1PPS to= UTC.=20 The 626 =C2=B5Hz frequency adjustment (calculated) compensates for the rec= eiver's DDS real frequencies 73, Michel - f5wk JN18HP Le mercredi 8 f=C3=A9vrier 2017 =C3=A0 19:54:35, IZ7SLZ =C3=A9crivait : > Hello LF, > i'm testing EbSynth, the linux application of Paul Nicholson > http://abelian.org/ebnaut/ebsynth.shtml > using a small PC with Ubuntu. > I want to test the EbSynth modulator by sending some EbNaut messages=20 > tonight starting at 19.00 every 30 minutes. > Message contains 12 characters coded with p=3D8k19A sent at 1s/sym. QRG i= s=20 > 137495 Hz > Reports are welcome. > 73, Domenico iz7slz -- ------------0871EB23F1898F4F7 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable Re: LF: Testing EbSynth on LF Hello Domenico,

received so far with Paul's vlfrx-tools:

20:00 UTC
vtread -T2017-02-08_20:00:00,+900 ./ | vtmult -f 1495 | vtresample -r 240 |= vtraw -oa | ebnaut -d -N12 -p 8K19A -S1 -r240 -c2 -L20000 -PS  -T0 -F= 0.000626
found rank 0 ber 9.7877e-02 Eb/N0 10.2 M -1.569956207e+02 [73 DE IZ7SLZ] ps= [  0    0    0    0    0]

20:30 UTC
vtread -T2017-02-08_20:30:00,+900 ./ | vtmult -f 1495 | vtresample -r 240 |= vtraw -oa | ebnaut -d -N12 -p 8K19A -S1 -r240 -c2 -L20000 -PS  -T0 -F= 0.000626
found rank 0 ber 0.0000e+00 Eb/N0 70.9 M -2.899937134e+02 [73 DE IZ7SLZ] ps= [  0    0    0    0    0]

21:30 UTC
vtread -T2017-02-08_21:30:00,+900 ./ | vtmult -f 1495 | vtresample -r 240 |= vtraw -oa | ebnaut -d -N12 -p 8K19A -S1 -r240 -c2 -L20000 -PS  -T0 -F= 0.000626
found rank 0 ber 4.1274e-02 Eb/N0 12.7 M -1.574096375e+02 [73 DE IZ7SLZ] ps= [  1  180  180  180  180]


Now I'm using a rubidium reference (10 MHz) not the GPSDO anymore. The 1PPS= for the sound card is derived from the rubidium as well.
This requires an initial sync from a GPS 1PPS to align the rubidium 1PPS to= UTC.
The 626 µHz frequency adjustment (calculated)  compensates for th= e receiver's DDS real frequencies

73,

Michel - f5wk  JN18HP


Le mercredi 8 février 2017 à 19:54:35, IZ7SLZ écrivait :

> Hello LF,

> i'm testing EbSynth, the linux application of Paul Nicholson

> http://abelian.org/eb= naut/ebsynth.shtml

> using a small PC with Ubuntu.

> I want to test the EbSynth modulator by sending some EbNaut messages <= br> > tonight starting at 19.00 every 30 minutes.

> Message contains 12 characters coded with p=3D8k19A sent at 1s/sym. QR= G is
> 137495 Hz

> Reports are welcome.

> 73, Domenico iz7slz






<= i>-- ------------0871EB23F1898F4F7--