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 x2MMhD1s026799 for ; Fri, 22 Mar 2019 23:43:14 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1h7Sky-0004nz-5u for rs_out_1@blacksheep.org; Fri, 22 Mar 2019 22:35:20 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1h7Sif-0004nc-V4 for rsgb_lf_group@blacksheep.org; Fri, 22 Mar 2019 22:32:57 +0000 Received: from mail-vs1-xe35.google.com ([2607:f8b0:4864:20::e35]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91) (envelope-from ) id 1h7SiY-0002nR-10 for rsgb_lf_group@blacksheep.org; Fri, 22 Mar 2019 22:32:53 +0000 Received: by mail-vs1-xe35.google.com with SMTP id w26so1237756vsk.13 for ; Fri, 22 Mar 2019 15:32:49 -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=BtqDVaxvwWpLRoURWCkm/nggqHXj+s66sdCkZIKbBTA=; b=AoE0fGJ5TbB+XiVfmAcdepDpqYHZQ3VWT0qIc3A1NgsNu/uqubDNdwZpWrcD1catTp YcmHYl4L92DOa7lXiALkFsZX+Bo49yd7JvnpENAYFzEAuzGSCNnhJTJyVorqbqefUTa8 od/eSYFscBTP/rgcVjLWqwxA8WcpG5GHqxzI/bvX+zWQAy4y1OunTH0ZNN0i4S+Yf7Dz ZmrtO18+68re2f3BkJUffHth9sD9bg4lMw0A1O1r6Y0Jbif8u/XFg1WTuRQEpIiezWhC TpWp/fqW7qvURKLoIH3nMrV6ibPXmoCkCJOdiZseS+PJQPhFHpREsm1+5QPO5eSl3OZQ QcDA== 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=BtqDVaxvwWpLRoURWCkm/nggqHXj+s66sdCkZIKbBTA=; b=lfnhfytN6J8X6UZugtxWQPXTBuwxEkV3dz0qnmkQ4ZpA3e27+2jlExzhNBFQ3P5eDA AuUvABpO2oFoAhBeZzoA/zao0nmyI5CcoamFSjLgk3TXfrUNQITVIyuyF7aIxNJdmGJh Nz4hnIflc35/jIJtIYQPp5TQZnsu2VGeuw5+pScHFZnLd3HnCwKM1B3SvxIpPF+QpBZE LR6OgPSVn0IdB/b3ld9xva4hAuCcXyWAwPs6iO8NuOPHKTvLmdtfmaaud97tQiBv++aR P4/4L70UHKKno3YyLq8+gYqz/wxjJvvOZqfYIhQ1bUmf1vON4JALO0oANOvfzglCxbHH qpzQ== X-Gm-Message-State: APjAAAU/9KMs/qokPU+GpoZ5OG4GSu/dWC3ETzXkyxHYJyQn4QheViKS r6UDebCW6omkchl1gmdj0HuURY3Hc/QNvuQvd7EPMA== X-Google-Smtp-Source: APXvYqxvvlKBsDnngHXmPgORRQcOh/yQ3dV8a1mmRO+xtnGtz0ffT0x76iiuYLKx9pR0r32ng2GdsE6FghLxwWUJDsc= X-Received: by 2002:a67:ffce:: with SMTP id w14mr7750074vsq.111.1553293967890; Fri, 22 Mar 2019 15:32:47 -0700 (PDT) MIME-Version: 1.0 References: <126956515.20190320112712@gmail.com> <5C928276.6030305@posteo.de> <3059038.G59NEj1qbP@x220> <1911079270.20190322200521@gmail.com> In-Reply-To: <1911079270.20190322200521@gmail.com> From: Andy Talbot Date: Fri, 22 Mar 2019 22:32:35 +0000 Message-ID: To: "rsgb_lf_group@blacksheep.org" X-Spam-Score: 1.0 (+) 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: Hw about a crystal oscillator and CMOS divider. You may have to juggle with division ratio a bit depending on what chips and crystals are available. Then just manually reset it on the even minute and [...] Content analysis details: (1.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [2607:f8b0:4864:20:0:0:0:e35 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 (andy.g4jnt[at]gmail.com) 0.0 HTML_MESSAGE BODY: HTML included in message 1.0 FREEMAIL_REPLY From and body contain different freemails X-Scan-Signature: f82786fce13a7bdfc3036eb41b44b924 Subject: Re: LF: Software to time swap 2 RX antennas over? Content-Type: multipart/alternative; boundary="000000000000301f620584b66fa7" 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_20_30,HTML_MESSAGE, TO_ADDRESS_EQ_REAL 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 --000000000000301f620584b66fa7 Content-Type: text/plain; charset="UTF-8" Hw about a crystal oscillator and CMOS divider. You may have to juggle with division ratio a bit depending on what chips and crystals are available. Then just manually reset it on the even minute and allow to free run. It'll be accurate enough for a day or two. I'd use a PIC, many others an Arduino - why complicate it with a PC and yet another interface line Andy www.g4jnt.com On Fri, 22 Mar 2019 at 20:30, Chris Wilson wrote: > > > Hello Claudio and all who have replied here and by e-mail. > > I am liking the Spectrum Labs idea, but SL is a daunting application, > but I am sure using it in his simple manner can't be *THAT* hard :) > I'll give it a try, it's an app I really should get to grips with > anyway. Many thanks everyone. > > Thursday, March 21, 2019, 5:45:24 PM, you wrote: > > > On Wednesday, March 20, 2019 07:12:06 PM you wrote: > >> Hi Chris, > >> > >> Use a relay, switched by a FET which is switched by a RS232 line. Then > >> you can toggle the state by using SpecLab, each 2 minutes automatically, > >> even at 0x:55, ie.between the sequences, where the TX is off. > >> For LF you can use a normal relay, it does not need to be a coax relay. > >> > >> Consider to detune the unused RX antenna, i.e. avoid coupling. > > > Yes, SpecLab can do the job. > > > I have compared a loop antenna with the Miniwhip using SpectrumLab and > > switching the antennas using a toggle switch, the PC was a laptop with > mono > > audio input. > > > The waterfall was very useful to estimate the different noise received > by the > > antennas. > > > If the PC have the audio stereo input you can connect one antenna to the > left > > channel and the other one to the right channel. > > > See the attached picture. > > > 73 - Claudio ik2pii > > >> > >> 73, Stefan > >> > >> Am 20.03.2019 12:27, schrieb Chris Wilson: > >> > Hello LF'ers, > >> > > >> > Looking for ideas re automatically swapping two RX antennas over > to > >> > one receiver timed to WSPR or other timed digital modes to compare > >> > performance, Anyone got any input please? Thanks. > > > > > > > -- > > ZE-Light e ZE-Pro: servizi zimbra per caselle con dominio email.it, > per tutti i dettagli > > Clicca qui > > > http://posta.email.it/caselle-di-posta-z-email-it/?utm_campaign=email_Zimbra_102014=main_footer/f > > > > Sponsor: > > Soluzioni di email hosting per tutte le esigenze: dalle caselle > > gratuite a quelle professionali su piattaforma Zimbra, da quelle su > > proprio dominio a quelle certificate PEC. Confronta le soluzioni > > Clicca qui: http://adv.email.it/cgi-bin/foclick.cgi?mid=13326&d=21-3 > > > -- > Best regards, > Chris mailto:dead.fets@gmail.com > > > --000000000000301f620584b66fa7 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hw about a crystal oscillator and CMOS divider.= =C2=A0 =C2=A0You may have to juggle with division ratio a bit depending on = what chips and crystals are available.=C2=A0 Then just manually reset it on= the even minute and allow to free run.=C2=A0 =C2=A0It'll be accurate e= nough for a day or two.

I'd use a PI= C,=C2=A0 many others an Arduino - why complicate it with a PC and yet anoth= er interface line


<= br>
On Fri,= 22 Mar 2019 at 20:30, Chris Wilson <dead.fets@gmail.com> wrote:


Hello Claudio and all who have replied here and by e-mail.

I am liking the Spectrum Labs idea, but SL is a daunting application,
but I am sure using it in his simple manner can't be *THAT* hard :)
I'll give it a try, it's an app I really should get to grips with anyway. Many thanks everyone.

Thursday, March 21, 2019, 5:45:24 PM, you wrote:

> On Wednesday, March 20, 2019 07:12:06 PM you wrote:
>> Hi Chris,
>>
>> Use a relay, switched by a FET which is switched by a RS232 line. = Then
>> you can toggle the state by using SpecLab, each 2 minutes automati= cally,
>> even at 0x:55, ie.between the sequences, where the TX is off.
>> For LF you can use a normal relay, it does not need to be a coax r= elay.
>>
>> Consider to detune the unused RX antenna, i.e. avoid coupling.

> Yes, SpecLab can do the job.

> I have compared a loop antenna with the Miniwhip using SpectrumLab and=
> switching the antennas using a toggle switch, the PC was a laptop with= mono
> audio input.

> The waterfall was very useful to estimate the different noise received= by the
> antennas.

> If the PC have the audio stereo input you can connect one antenna to t= he left
> channel and the other one to the right channel.

> See the attached picture.

> 73 - Claudio ik2pii

>>
>> 73, Stefan
>>
>> Am 20.03.2019 12:27, schrieb Chris Wilson:
>> > Hello=C2=A0 LF'ers,
>> >
>> > Looking=C2=A0 for=C2=A0 ideas=C2=A0 re automatically=C2=A0 sw= apping two RX antennas over to
>> > one receiver timed=C2=A0 to=C2=A0 WSPR=C2=A0 or=C2=A0 other t= imed digital modes to compare
>> > performance, Anyone got any input please? Thanks.

>=C2=A0
>=C2=A0
>=C2=A0 --
>=C2=A0 ZE-Light e ZE-Pro: servizi zimbra per caselle con dominio email.it, pe= r tutti i dettagli
> Clicca qui
> http://posta.email.it/caselle-di-posta-z-email-it/?utm_campaign=3Dema= il_Zimbra_102014=3Dmain_footer/f
>=C2=A0
>=C2=A0 Sponsor:
>=C2=A0 Soluzioni di email hosting per tutte le esigenze: dalle caselle<= br> > gratuite a quelle professionali su piattaforma Zimbra, da quelle su > proprio dominio a quelle certificate PEC. Confronta le soluzioni
>=C2=A0 Clicca qui: http://adv.em= ail.it/cgi-bin/foclick.cgi?mid=3D13326&d=3D21-3


--
Best regards,
=C2=A0Chris=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 mailto:dead.fets@gmail.com


--000000000000301f620584b66fa7--