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 w2KBLVfW026093 for ; Tue, 20 Mar 2018 12:21:33 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1eyFGe-000095-1g for rs_out_1@blacksheep.org; Tue, 20 Mar 2018 11:17:24 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1eyFGb-00008t-6B for rsgb_lf_group@blacksheep.org; Tue, 20 Mar 2018 11:17:21 +0000 Received: from proofpoint-cluster.metrocast.net ([65.175.128.136]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1eyFGW-0006SA-Rh for rsgb_lf_group@blacksheep.org; Tue, 20 Mar 2018 11:17:19 +0000 Received: from [192.168.2.10] (d-208-90-143-11.cpe.metrocast.net [208.90.143.11]) (authenticated bits=0) by kiwi.metrocast.net (8.14.7/8.14.4) with ESMTP id w2KBHBO8010334 for ; Tue, 20 Mar 2018 11:17:11 GMT From: Rob Renoud Mime-Version: 1.0 (1.0) Date: Tue, 20 Mar 2018 07:17:10 -0400 Message-Id: <8E11D917-1416-4D11-A173-E71E2C74FCC1@md.metrocast.net> References: <8a85a7a8-7a1b-f38c-3581-88701aeaf955@n1bug.com> <5AAFE3B3.8050603@posteo.de> <579355A36AEE9D4FA555C45D556003ABA3C3A19A@servigilant.vigilant.local> In-Reply-To: <579355A36AEE9D4FA555C45D556003ABA3C3A19A@servigilant.vigilant.local> To: rsgb_lf_group@blacksheep.org X-Mailer: iPad Mail (15D100) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.19.17,1.0.8,0.0.0000 definitions=2018-03-20_05:2018-03-20,2018-03-20,1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 suspectscore=1 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=7.0.1-1603290000 definitions=main-1803200132 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 the administrator of that system for details. Content preview: Hi LF’ers, My LF station TX and RX hardware support EbNaut requirements and I currently have EbNaut TX capability implemented and tested into a dummy load. Am working to implement EbNaut RX software and decode capability. Expect it will be several weeks before that capability is functional and tested as I’m still learning what is required and how to implement it. [...] Content analysis details: (-0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 AC_DIV_BONANZA RAW: Too many divs in a row... spammy template 0.0 MIME_QP_LONG_LINE RAW: Quoted-printable line longer than 76 chars X-Scan-Signature: 81e655fcf3a8bdab256d37a53bc8dabb Content-Type: multipart/alternative; boundary=Apple-Mail-F7BBC978-B0D8-4290-8EA2-23C4BECC303E Content-Transfer-Encoding: 7bit Subject: Re: [english 100%] Re: LF: 2200m Trans-Atlantic QSO dream... X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.5 required=5.0 tests=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 --Apple-Mail-F7BBC978-B0D8-4290-8EA2-23C4BECC303E Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi LF=E2=80=99ers, My LF station TX and RX hardware support EbNaut requirements and I currently= have EbNaut TX capability implemented and tested into a dummy load. Am wor= king to implement EbNaut RX software and decode capability. Expect it will b= e several weeks before that capability is functional and tested as I=E2=80=99= m still learning what is required and how to implement it. I do agree that EbNaut is most excellent for experimentation and possibly QS= Os on LF. I believe the LF community should formulate an initial signal con= figuration for development and testing and one that will possibly support mi= nimum QSO requirements as well. I am not smart enough about EbNaut at this p= oint to offer any suggestions or make any recommendations about signal confi= gurations. I am also available to put a EbNaut signal at 1W EIRP on LF from my QTH at FM= 18qi while I continue implementing full EbNaut RX and decode capability. All ideas, suggestions and recommendations welcome! 73, Rob - K3RWR > On Mar 20, 2018, at 05:08, VIGILANT Luis Fern=C3=A1ndez = wrote: >=20 > Hi Domenico, LF > =20 > I agree with you that EbNaut is the way to go for DX in LF. And QSOs can b= e made using short symbol durations at least equal to a long QRSS mode > Would be interesting if you recall the modes and time windows involved in t= hat QSOs that took place in LF > =20 > But (at least muy experience, for a dummy and NON Lynux user) the differen= t software packages needed and the lack of clear descriptions on how to > setup all the switches is a BIG problem and scares most OMs. The reward is= to gain a LOT of dBs using the same station setup. So it really worths the e= ffort > =20 > >> Of course, i'm also at disposal to put on air a small EbNaut signal on L= F from my locator JN80nu > =20 > Please do it. Would be very important to get your EbNaut transmissions in L= F as a reference. Specially to check if one can do it with an stable receive= r > but not GPSDO disciplined. This last step is complicated for many receiver= s and not easy for many OMs. I=E2=80=99m using Perseus SDR which needs a GPS= DO at > 88MHz, but the existing TCXO looks very stable and think would work just d= etermining the QRG shift and compensating for that > =20 > >>I believe that using EbNaut on LF (i.e. dealing with more robust signals= than VLF) can be a very good training for acquiring the skill necessary to u= se EbNaut on VLF. >=20 > Absolutely agree ! J > =20 > 73 de Luis > EA5DOM > =20 > De: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksh= eep.org] En nombre de Domenico IZ7SLZ > Enviado el: martes, 20 de marzo de 2018 0:17 > Para: rsgb_lf_group@blacksheep.org > Asunto: Re: [english 100%] Re: LF: 2200m Trans-Atlantic QSO dream... > =20 > Hi LF'ers >=20 > i suggest to the operators that are looking for any kind of ancient softwa= re for a T/A two-way contact, to have a look at > EbNaut. > EbNaut is a bpsk mode with FEC designed by Paul Nicholson for the VLF worl= d.=20 > But two years ago some EbNaut QSO's took place on LF between EU stations u= sing short symbol durations. Signals from VO1NA have been nicely decoded eve= n in Italy and also > a signal from DF6NM and IW4DXW have been decoded at VO1NA (without having a= disciplinated oscillator at RX side). >=20 > See Paul Nicholson's Log: http://abelian.org/vlf/amateur-radio/ >=20 > So, i think that a two-way QSO is possibile with EbNaut even in this comi= ng Spring. >=20 > For starting this FB mode, it is necessary, as first step, to achieve a g= ood frequency precision with the RTX radios. This, sometime, can be easly a= chieved by building some reference oscillators that use cheap GPS solutions.= >=20 > Here, i've built a 10 MHz reference oscillator with a PLL locked with a 10= kHz coming from a GPS. This 10 MHz reference signal goes to my RX and to t= he Exciter. Some 'scrapped' 10 MHz /GPS reference oscillators are on the mar= ket and easy to found. >=20 > Then you have to deal with different softwares. > For Windows' users, we can use Paul Nicholson's EbNaut-tx and EbNaut-rx to= gether with other necessary programs as SpectrumLab and the DF6NM's tools. > But if you are using Linux (Ubuntu,...) , then 'vlfrx-tools' is the only f= b suite needed for managing EbNaut Linux native program. >=20 > This mode is not well documented. Some EbNauters already wrote useful inst= ructions. But i think that 'live' assistance on this mail reflector can help= more: Questions from who is trying to use EbNaut and the answers from the G= roup can be more useful. > =20 > So i'm at disposal if some operator wants to try this mode. >=20 > Some month ago i have built-up a program for auto-decoding EbNaut transmi= ssions scheduled at certain time and frequencies (see the log on http://www= .qsl.net/i/iz7slz/EBNAUT/DECODED.TXT) >=20 > This setup can be again on-line if needed, also with different settings. >=20 > Of course, i'm also at disposal to put on air a small EbNaut signal on LF f= rom my locator JN80nu. >=20 > I believe that using EbNaut on LF (i.e. dealing with more robust signals t= han VLF) can be a very good training for acquiring the skill necessary to us= e EbNaut on VLF. >=20 > 73, Domenico IZ7SLZ > =20 --Apple-Mail-F7BBC978-B0D8-4290-8EA2-23C4BECC303E Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Hi LF=E2=80=99ers,

My LF station TX and RX hardware support EbNaut requirement= s and I currently have EbNaut TX capability implemented and tested into a du= mmy load.  Am working to implement EbNaut RX software and decode capabi= lity.  Expect it will be several weeks before that capability is functi= onal and tested as I=E2=80=99m still learning what is required and how to im= plement it.

I do agree that EbNaut is most excellen= t for experimentation and possibly QSOs on LF.  I believe the LF commun= ity should formulate an initial signal configuration for development and tes= ting and one that will possibly support minimum QSO requirements as well. &n= bsp;I am not smart enough about EbNaut at this point to offer any suggestion= s or make any recommendations about signal configurations.

I am also available to put a EbNaut signal at 1W EIRP on LF from my Q= TH at FM18qi while I continue implementing full EbNaut RX and decode capabil= ity.

All ideas, suggestions and recommendations wel= come!

73,
Rob - K3RWR


On Mar 20, 2018, at 05:08, VIGILANT Luis Fern=C3=A1ndez <luis@vigilant.es> wrote:

<= blockquote type=3D"cite">

Hi Domenico,= LF

 <= /o:p>

I agree with you that EbNaut is the way to go for DX in LF. And QSOs can b= e made using short symbol durations at least equal to a long QRSS mode

Would be interesting if you recall the modes and time windows involved in= that QSOs that took place in LF

 

But (at least muy experience, for a dummy and NON Lynux user) the differe= nt software packages needed and the lack of clear descriptions on how to

setup all the switches is a BIG problem and scares most OMs. The reward i= s to gain a LOT of dBs using the same station setup. So it really worths the effort

 

>> Of course, i'm also at disposal to p= ut on air a small EbNaut signal on LF from my locator JN80nu<= /o:p>

 

Please do it. Would be very important to get your EbNaut transmissions in= LF as a reference. Specially to check if one can do it with an stable receiver

but not GPSDO disciplined. This last step is complicated for many receive= rs and not easy for many OMs. I=E2=80=99m using Perseus SDR which needs a GPSDO at

88MHz, but the existing TCXO looks very stable and think would work just d= etermining the QRG shift and compensating for that

 

&= gt;>I believe that using EbNaut on LF (i.e. dealing with more robust sign= als than VLF) can be a very good training for acquiring the skill necessary t= o use EbNaut on VLF.

Absolutely agree ! J

 

73 de Luis

EA5DOM

 

De: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.o= rg] En nombre de Domenico IZ7SLZ
Enviado el: martes, 20 de marzo de 2018 0:17
Para: rsgb_lf_group@b= lacksheep.org
Asunto: Re: [english 100%] Re: LF: 2200m Trans-Atlantic QSO dream...<= o:p>

 

Hi LF'ers

i suggest to the operators that are looking for any k= ind of ancient software for a T/A two-way contact, to have a look at

EbNaut.

EbNaut is a bpsk mode with FEC designed by Paul Nicho= lson for the VLF world.
But two years ago some EbNaut QSO's took place on LF between EU stations usi= ng short symbol durations. Signals from VO1NA have been nicely decoded even i= n Italy and also

a signal from DF6NM an= d IW4DXW have been decoded at VO1NA (without having a disciplinated oscillat= or at RX side).

See Paul Nicholson's Log:  http://abelian.org/vlf/amateur-radio/

So, i think that  a two-way QSO is possibile with EbNaut even in this c= oming Spring.

For starting this FB m= ode, it is necessary, as first step,  to achieve a good frequency preci= sion with the RTX radios. This, sometime,  can be easly achieved by bui= lding some reference oscillators that use cheap GPS solutions.

Here, i've built a 10 MHz reference oscillator with a= PLL locked with a 10 kHz coming from a GPS. This 10 MHz  reference sig= nal goes to my RX and to the Exciter. Some 'scrapped' 10 MHz /GPS reference o= scillators are on the market and easy to found.


Then you have to deal with different softwares.

For Windows' users, we= can use Paul Nicholson's EbNaut-tx and EbNaut-rx together with other necess= ary programs as SpectrumLab and the DF6NM's tools.
But if you are using Linux (Ubuntu,...) , then  'vlfrx-tools' is the on= ly fb suite needed for managing EbNaut Linux native program.

This mode is not well documented. Some EbNauters alre= ady wrote useful instructions. But i think that 'live' assistance on this ma= il reflector can help more: Questions from who is trying to use EbNaut and t= he answers from the Group can be more useful.

 

So i'm at disposal if s= ome operator wants to try this mode.

Some month ago i have b= uilt-up a program for  auto-decoding EbNaut transmissions scheduled at c= ertain time and frequencies (see the log on  http://www.qsl.net/i/iz7slz/EBNAUT/DECODED.TXT)

This setup can be agai= n on-line if needed, also with different settings.

Of course, i'm also at= disposal to put on air a small EbNaut signal on LF from my locator JN80nu.<= o:p>

I believe that using E= bNaut on LF (i.e. dealing with more robust signals than VLF) can be a very g= ood training for acquiring the skill necessary to use EbNaut on VLF.

73, Domenico IZ7SLZ

 

= --Apple-Mail-F7BBC978-B0D8-4290-8EA2-23C4BECC303E--