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 w2VET3O6008714 for ; Sat, 31 Mar 2018 16:29:04 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1f2HLo-00064K-OV for rs_out_1@blacksheep.org; Sat, 31 Mar 2018 15:19:25 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1f2HHn-000641-0g for rsgb_lf_group@blacksheep.org; Sat, 31 Mar 2018 15:15:15 +0100 Received: from mail-wm0-f42.google.com ([74.125.82.42]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1f2HHg-0007Mk-9i for rsgb_lf_group@blacksheep.org; Sat, 31 Mar 2018 15:15:10 +0100 Received: by mail-wm0-f42.google.com with SMTP id f125so20483634wme.4 for ; Sat, 31 Mar 2018 07:15:07 -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=U48FynkYNYOlAha1KcO3RUwo1yCq1uNxxtSiqEG3Tkk=; b=fR/W98Sx1bxRMP5Xwn0m+RbGXrqnU8NvmldvLICQFNLXTQrk12QX7NL5kKp3mxVfUx QbsChZmiRETg/T+fq1iJNtmcvCH4MBhMdKK9xp/y7rSwNiGWH1RjoDqipkv8krdyH27D 86tfAfVPCTUf2GsZNGuePTmXAfrC08S6dllZwNb95E5pvoaWvJFOvaz9vVMWFmwu6SNN l2EuP9wLSzIpANpERmVzGkKIw+0XDliMRQ3lzEVlv018V/rveBJQ+1HTCPLeE5Xe+mxQ JvJQhkm5VNc04J6NNJ6k7nG8/T0xEGAP+PRDF5UYqdTj+JC8EYG55Kiy88WdUWWJoujQ S2Qw== 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=U48FynkYNYOlAha1KcO3RUwo1yCq1uNxxtSiqEG3Tkk=; b=Kf1RDQJZv/h9aLwLW5k3YmBnaPrn7vJ+4qMbg8BQPfCfJ/QDJtZDQX3LOjh1SknzVU YNIVTsGIhj8u9w0flCEFnMC+8n4Fwc06Y+6adVgkZJTyHIIzhC/zq2Kq1f7pB6zTkTBt iN5KZ01GkDHFh2u4+D6+5iGa0OF/MpY/fOvc0Po+BZxoXx4E1QxAg78mU2yfWVguPaC6 HTxXfh+PQAePrS88Hxfx/hJZ0pua1eLN7N/xtoRtFW7qnamEer2OTXQlZY5EW/s6rf1B 817jgtGc22EgDnU995KI05GOhs/0Y02BJIqdoBG0WrOjR7DByCgF2VRstRQB8SjfFbdy ZVIA== X-Gm-Message-State: AElRT7GnnRl+KwdH0yUwJrM2Td0ZPKtbvmbFmhs7U7GMaxFsxFV4GGmn IqSMc+P/k8rJizjeya0ZSaDs4p/3pnvRNxXRQDw= X-Google-Smtp-Source: AIpwx4952/i24Z3IYOSrdAJwTAANGNmwP7oVZgakLB51Q+BErwd9buQNhJPs6kjOAS3oMsjKSG7it12Akpz/d9eiuOQ= X-Received: by 10.80.246.3 with SMTP id c3mr6180479edn.185.1522505645426; Sat, 31 Mar 2018 07:14:05 -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: <1627bedf2dc-1795-3ce@webjasstg-vaa29.srv.aolmail.net> From: Riccardo Zoli Date: Sat, 31 Mar 2018 14:13:54 +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 Markus, LF Yes, 5 Hz are quite indequate for simultaneous EbNaut transmissions. Anyway, I switch in RX on the second half of every hour. Rob is working for RX capability, then, once he's ready, we could exchange TX and RX slots. QSY for me this evening at *137522.000313* for another TA attempt (many thanks, Jay) with same EbNaut parameters and scheduling. [...] 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: cbf9d9751ac5f32708197d03fa6d8d74 Subject: Re: LF: EbNaut March 30/31 Content-Type: multipart/alternative; boundary="f403045f75922a0cc90568b5f8d5" 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 --f403045f75922a0cc90568b5f8d5 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi Markus, LF Yes, 5 Hz are quite indequate for simultaneous EbNaut transmissions. Anyway, I switch in RX on the second half of every hour. Rob is working for RX capability, then, once he's ready, we could exchange TX and RX slots. QSY for me this evening at *137522.000313* for another TA attempt (many thanks, Jay) with same EbNaut parameters and scheduling. All the best 73 de Riccardo IW4DXW Il Sab 31 Mar 2018, 14:07 Markus Vester ha scritto: > Again a strong signal with some error-free decodes from IW4DXW. Also foun= d > K3RWR finally on 137490 Hz, but only once after 4:00, and another near-mi= ss > 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 fo= r > the matched filter in the receive software, so keying sidebands or aliasi= ng > from a near station may spill over an adjacent weak signal (although in > principle this could be minimized by orthogonal modulation, using identic= al > symbol timing for all stations, and frequencies spaced by an exact intege= r > multiple of the common clockrate). But there are also other 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. > > 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 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. Work is starting this weekend on EbNaut R= X > capability for my station. > > 73, > Rob - K3RWR > > --f403045f75922a0cc90568b5f8d5 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi Markus, LF
Yes, 5 Hz are quite indequate for simultaneous Eb= Naut transmissions.
Anyway, I switch in RX on the se= cond half of every hour. Rob is working for RX capability, then, once he= 9;s ready, we could exchange TX and RX slots.
QSY fo= r me this evening at=C2=A0137522.000313 for another TA attempt (many= thanks, Jay) with same EbNaut parameters and scheduling.

All the best

<= /div>

73 de Riccardo IW4DXW






Il Sab 31 Mar 2018, 14:07= Markus Vester <markusvester@aol= .com> ha scritto:
Again a strong signal with some error-free decodes from IW4DXW. Also fo= und K3RWR finally on 137490 Hz, but only once after 4:00, and another near-= miss around sunrise after 4:30 (logs attached).

Rethinking m= y frequency suggestion, it may not be ideal to place simultaneous signals f= rom both sides of the pond so near to each other. EbNaut employs hard-keyed= phase switching both for the transmitter and for the matched filter in the= receive software, so keying sidebands or aliasing from a near station may = spill over an adjacent weak signal (although in principle this could be min= imized by orthogonal modulation, using identical symbol timing for all stat= ions, and=C2=A0frequencies spaced by an exact integer multiple of the commo= n clockrate). But there are also other disadvantages, like noise-blanker in= duced crossmodulation and threshold increase. So in the end it may be bette= r 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 <mark= usvester@aol.com>
An: rsgb_lf_group <rsgb_lf_group@b= lacksheep.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)
________= ______________________________
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 2018 19:53

Hi LF

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

QRG: 137494.99988
8K19A
CR= C 20
3 sec./sym.
6 char
duration: 29 min. 36 sec.

Reports ar= e welcome.

All the best

73 de Riccardo IW4DXW
______________= ________________________
Re: LF: K3RWR LF EbNaut Trial #2=C2=A0
Von:= Rob Renoud <k3rwr@md.metrocast.net>
An: rsgb_lf_group &l= t;rsgb_lf_group@blacksheep.org>
Datum: Do, 29. Mrz 201= 8 21:22

TU all for LF EbNaut reception reports for my 28/29 March 20= 18 trial of a 12 char, CRC 15, 2 sec symbol 8K19 transmission.=C2=A0 The fi= rst night results of this format are very positive!

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

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

73,
R= ob - K3RWR


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