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 wBVGPMsD007022 for ; Mon, 31 Dec 2018 17:25:33 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ge0Jg-0007UP-Uk for rs_out_1@blacksheep.org; Mon, 31 Dec 2018 16:21:24 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ge0Jg-0007UG-8e for rsgb_lf_group@blacksheep.org; Mon, 31 Dec 2018 16:21:24 +0000 Received: from mail-lf1-x133.google.com ([2a00:1450:4864:20::133]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91_59-0488984) (envelope-from ) id 1ge0Je-0003xB-6K for rsgb_lf_group@blacksheep.org; Mon, 31 Dec 2018 16:21:23 +0000 Received: by mail-lf1-x133.google.com with SMTP id c16so18524541lfj.8 for ; Mon, 31 Dec 2018 08:21:22 -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=c5No5aaUBffQkLyoQJHTWnDdfi6c1egXVHSxlq5H5wA=; b=Mt7o9PHwPws4dR2bMw0pM5IO/BihMoZZVw7irLX2cIDB6+CBE0iscgyTKENvyIdmyH ud+p3VtZ9ys26qT00MooBJggX8TQHgdKRgAkT+/NWR5IJ9NxduhiDZ3ES+mZsyvGJVtw dTMLujtHvU+7WObfg6XznMLs02tyjd7kTWIwDiwXtr2gD2MxFnMJRyw1BN31XT3+LLSv YYZXqZ5fPHl7zRUpfkcRW5eUkwxeAzw/asWhyaBub9Z95RB+maIaQkBW0VWaIcghXsjA YQgp7Je772DUKpIKouETR2H0Uc6dEmAwdJbh6g0ik4QL++q09wRiqpovCs99UeLXEAFN kn1A== 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=c5No5aaUBffQkLyoQJHTWnDdfi6c1egXVHSxlq5H5wA=; b=Zsw2InNCHohxjHKpJoHNUq+Rgy2Pd+JES2J1P6cOlE6I169yUOfCBE0uP88YaKZhgF pMTb6z8aR7U2fEBC55/JFI+Ryo6huAf/IdZvm1Le3bRM/+DPflo73OemYRcKAczl4FIx HOrOSGEFG6W15N6bgeGcIyiHriySgRvg4B7dPqadeTbm5Pl8mvNUuAqDspGY7GB5VeIC XdtHbsotv9Ymt9sb52ixZf/aKdCbYS6KTk7Pdzpt3no2EKD9J87EJfGvtVkGlyVZwH1l 7KDvUd15eqTMyRYBvR4BHbETJyMWJoZwJmBfuWHNwyYYsORpJzdAqTp/kVB0uA8C4E0g VmqQ== X-Gm-Message-State: AA+aEWaUUxnDQw2L35T0aTIRgLosZC/DjHJw0xOGfuERb78UIrzpfpK0 kKMZZl0hJ1p7oR5KvX2uOom33TfTrKbJUH+wqsGgSEWcSEA= X-Google-Smtp-Source: AFSGD/UEnUmmk+bvNMQdmIMAwcmwc+AJL2j3sEWoyT4NSVMBIK3CCVS1U26BTXMOKRh5a1mqVle2unVmUMr1Gcfs0kI= X-Received: by 2002:a19:3b45:: with SMTP id i66mr19950033lfa.28.1546273280645; Mon, 31 Dec 2018 08:21:20 -0800 (PST) MIME-Version: 1.0 References: <837ccf97-5020-0ed3-b67e-966df3020851@n1bug.com> In-Reply-To: From: ik1hgi Qrss Qrpp Date: Mon, 31 Dec 2018 17:21:09 +0100 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 @@CONTACT_ADDRESS@@ for details. Content preview: I used a QRP Labs Ultimate 3S beacon transmitter for these tests. Yesterday I verified my ability to use JT9-5 for QSOs and I found that I have none! My FT-2000 transceiver has too much drift to be us [...] 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 [2a00:1450:4864:20:0:0:0:133 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 (ik1hgi.qrss[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 1.0 FREEMAIL_REPLY From and body contain different freemails X-Scan-Signature: cd79e98bb57cf38a756c15469b5a993e Subject: Re: LF: Re: Bad news / help request Content-Type: multipart/alternative; boundary="0000000000009e5fd9057e53cdfb" 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 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 --0000000000009e5fd9057e53cdfb Content-Type: text/plain; charset="UTF-8" I used a QRP Labs Ultimate 3S beacon transmitter for these tests. Yesterday I verified my ability to use JT9-5 for QSOs and I found that I have none! My FT-2000 transceiver has too much drift to be used on JT9-5 and is very marginal even for JT9-2. What a huge disappointment, __________________ Paul also for me was a surprise I discovered in the way JT9-5 does not work U3-S I do not understand how setup ik1hgi Antonio Il giorno lun 31 dic 2018 alle ore 17:00 N1BUG ha scritto: > Duh! Scratch item 3. Of course that won't work as it will destroy > the JT9 tone spacing!! > > Paul > > > On 12/31/18 8:59 AM, N1BUG wrote: > > So, the latest SlowJT9 test is completed. I regret I was not able to > > run one night on 630m as planned. > > > > I used a QRP Labs Ultimate 3S beacon transmitter for these tests. > > Yesterday I checked my ability to use JT9-5 for QSOs and found that > > I have none! My FT-2000 transceiver has too much drift to be of any > > use on JT9-5 and is very marginal even for JT9-2. What a huge > > disappointment, though it did not come as any surprise. > > > > I can think of several ways to solve this but am not sure any of > > them can save some part of this winter season: > > > > 1. Add insulation and a heater to the FT-2000 TCXO area. I will try > > this but I am not convinced I can make enough improvement. The drift > > is really ugly! > > > > 2. Replace the FT-2000 TCXO with an outboard programmable GPS > > referenced oscillator, for example a Leo Bodnar unit. The trouble > > with this is I do not have sufficient knowledge or experience to > > know what kind of problems might be encountered. The GPSDO is enough > > of an investment to kill any and all other attempts at a resolution > > if I am unable to make it work. > > > > 3. Use a divide-by-100 circuit with the FT-2000 operating at 13.6 > > MHz instead of a LO/mixer converter from 10 MHz. This should reduce > > drift to the order of 0.1 Hz, probably quite acceptable. So far I > > have not found a divide-by-100 circuit using a modern/available part. > > > > 4. Run away from the junk FT-2000 completely, using audio to 136 kHz > > converter for Tx and 136 kHz to audio converter for Rx. This is > > finally the direction I want to go but there seems to be much > > learning left to do and a lot of building. It's probably not a > > solution which can be completed in time for this winter season. > > > > If anyone has experience in any of these areas and is willing to > > share knowledge, please get in touch with me. This may be the last > > solar minimum for me, and I would like to make some LF/MF DX QSOs > > before these incredible conditions fade away. > > > > 73, > > Paul N1BUG > > -- Salve Antonio ik1hgi http://www.qsl.net/ik1hgi/472khz/gps-x.htm http://www.qsl.net/ik1hgi/472-50.htm http://www.qsl.net/ik1hgi/qrp/index.htm http://www.qsl.net/ik1hgi/eqsl.html ik1hgi.qrss@gmail.com ik1hgi.atv@gmail.com Antonio ik1hgi 73 RISERVATEZZA (ai sensi D.Lgs n. 196/03) --0000000000009e5fd9057e53cdfb Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
I used a QRP Labs Ultimate 3S beacon= transmitter for these tests.
Yesterday I verified my ability to = use JT9-5 for QSOs and I found that I have none! My FT-2000 transceiver has= too much drift to be
used on JT9-5 and is very marginal even for= JT9-2. What a huge disappointment,=C2=A0
__________________
Paul also for me was a surprise I discovered in the way JT9-5 does no= t work U3-S I do not understand how setup
ik1hgi Antonio


Il = giorno lun 31 dic 2018 alle ore 17:00 N1BUG <paul@n1bug.com> ha scritto:
Duh! Scratch item 3. Of course that won't wor= k as it will destroy
the JT9 tone spacing!!

Paul


On 12/31/18 8:59 AM, N1BUG wrote:
> So, the latest SlowJT9 test is completed. I regret I was not able to > run one night on 630m as planned.
>
> I used a QRP Labs Ultimate 3S beacon transmitter for these tests.
> Yesterday I checked my ability to use JT9-5 for QSOs and found that > I have none! My FT-2000 transceiver has too much drift to be of any > use on JT9-5 and is very marginal even for JT9-2. What a huge
> disappointment, though it did not come as any surprise.
>
> I can think of several ways to solve this but am not sure any of
> them can save some part of this winter season:
>
> 1. Add insulation and a heater to the FT-2000 TCXO area. I will try > this but I am not convinced I can make enough improvement. The drift > is really ugly!
>
> 2. Replace the FT-2000 TCXO with an outboard programmable GPS
> referenced oscillator, for example a Leo Bodnar unit. The trouble
> with this is I do not have sufficient knowledge or experience to
> know what kind of problems might be encountered. The GPSDO is enough > of an investment to kill any and all other attempts at a resolution > if I am unable to make it work.
>
> 3. Use a divide-by-100 circuit with the FT-2000 operating at 13.6
> MHz instead of a LO/mixer converter from 10 MHz. This should reduce > drift to the order of 0.1 Hz, probably quite acceptable. So far I
> have not found a divide-by-100 circuit using a modern/available part.<= br> >
> 4. Run away from the junk FT-2000 completely, using audio to 136 kHz > converter for Tx and 136 kHz to audio converter for Rx. This is
> finally the direction I want to go but there seems to be much
> learning left to do and a lot of building. It's probably not a
> solution which can be completed in time for this winter season.
>
> If anyone has experience in any of these areas and is willing to
> share knowledge, please get in touch with me. This may be the last
> solar minimum for me, and I would like to make some LF/MF DX QSOs
> before these incredible conditions fade away.
>
> 73,
> Paul N1BUG



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