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 x2KHvU2j009515 for ; Wed, 20 Mar 2019 18:57:38 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1h6fG3-0000Lk-Hd for rs_out_1@blacksheep.org; Wed, 20 Mar 2019 17:44:07 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1h6fFC-0000LZ-05 for rsgb_lf_group@blacksheep.org; Wed, 20 Mar 2019 17:43:14 +0000 Received: from mail-ed1-x536.google.com ([2a00:1450:4864:20::536]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91) (envelope-from ) id 1h6fF7-0004lN-Hl for rsgb_lf_group@blacksheep.org; Wed, 20 Mar 2019 17:43:10 +0000 Received: by mail-ed1-x536.google.com with SMTP id h22so2747859edw.7 for ; Wed, 20 Mar 2019 10:43:09 -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=zOf17MPNbsW4gZH06Cd5yhB7kcBGNpOZ4hwIz1Zeqig=; b=RanFpjeu3GVbDZr2o0fjt9vtHycRYn40w7PeWeCg/PgohP+7h0vCRseDLB7JfSSls2 paqXDPnBqm06r8Dy8mYiW72dj04INDkfU36wd38A+ztgd0xKIVrGebWlRDPxGnSd6UxF RcluNmgjr2KfQ3Y7ABY1kttIqUbG4eKqlk4OK1tMHfE4IlNb7hCHg/zDr4L1t75L17mw NbSOjj+mm0EADn4P/hbP8Vj1BlTZwzOerASarUZEHE3bdw9o12vDgwn9Slns9HdawlLC ohG9IM88l6KQHMf22INLHZs3WDFlhV7E251H3Co9ZfVfN9kL615lrnc94A7NFkozvAb2 5RDw== 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=zOf17MPNbsW4gZH06Cd5yhB7kcBGNpOZ4hwIz1Zeqig=; b=DJQ9HgINRyaAmmnZxA8wl96LKJqRJCT561nsyc84SCp95ZQYNMg1Q1Bbc0O/JyHWvm yrTa5lG6K+I8jY0PoxNQdIrCdS2GGRXnBDZp0ZXIJBel3Qs8zHPuTQ7/UnUdZw5Paz8k HUps1uq3BkgyuHZBEqDusIrSXYGU8/OvqavvYzbN5IkzF7Tvp1GmB5U51utkw6Vn5ALs zLyjHl5NaF7Z03zeouuUUqHAVGHTOM71I+7jW3UOoA7+LlQQzvf4XuqX4RD3cV63n4tB dxzi4s9bzth4RcoC7YUZ41N/SThu1TUxKytHQLrNcK3J+pUkfer4Gi6lvOR6FuOS02Qo 7SpQ== X-Gm-Message-State: APjAAAUP4viArn9eU/F44hYVj0pdt1BkUmd0o1DkmXvSPijltaOw99CM pov67lYRqhZuFYA+TshSOwagZMWJoruo8nj6XINE X-Google-Smtp-Source: APXvYqw8227Hkz7FpHwr8cDnpbqM5oKLOSYzIVuCkg2JsV43c56t4B51rvx1E4TFwFgRMFRI+ggnZHIHwD05rsNdYY0= X-Received: by 2002:a17:906:8281:: with SMTP id h1mr2538662ejx.124.1553103788370; Wed, 20 Mar 2019 10:43:08 -0700 (PDT) MIME-Version: 1.0 References: <126956515.20190320112712@gmail.com> In-Reply-To: From: Dave Smith Date: Wed, 20 Mar 2019 17:42:57 +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: Hi....I compared two antennas ( vertical half wave and a magnetic loop) a few years ago by keying a flip/flop from the tx accessory output normally meant to switch a linear amp on. The flip/ flop swit [...] 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 [2a00:1450:4864:20:0:0:0:536 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 (dave.goathland[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: 1bc6486c2865e7dc2ff7578e6d7fc226 Subject: Re: LF: Software to time swap 2 RX antennas over? Content-Type: multipart/alternative; boundary="0000000000009af8ba05848a2742" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=HTML_30_40,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 --0000000000009af8ba05848a2742 Content-Type: text/plain; charset="UTF-8" Hi....I compared two antennas ( vertical half wave and a magnetic loop) a few years ago by keying a flip/flop from the tx accessory output normally meant to switch a linear amp on. The flip/ flop switched a coax change over relay. By setting the tx time periods of wspr to tx every 5 minutes and noting the start time for antenna number one I could work back through the results to get a reasonable comparisons of the two antennas. Dave On Wed, 20 Mar 2019 at 15:46, Alberto Martinez wrote: > https://qrp-labs.com/ultimate3/u3info/antcomp.html > > : >> >>> >>> >>> 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. >>> >>> >>> >>> -- >>> Best regards, >>> Chris mailto:dead.fets@gmail.com >>> >>> >>> --0000000000009af8ba05848a2742 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi....I compared two antennas ( vertical half wave a= nd a magnetic loop) a few years ago by
keying = a flip/flop from the tx accessory output normally meant to switch a linear = amp on.
The flip/ flop switched a coax change over r= elay.=C2=A0 By setting the tx time periods of wspr=C2=A0
to tx every 5 minutes and noting the start time for antenna number one= I could work back=C2=A0
through the results to get = a reasonable comparisons of the two antennas.
Dave

On Wed, 20 Mar 2019 at 15:46, Alberto Martinez <ea4ghb@gmail.com> wrote:

:


Hello=C2=A0 LF'ers,

Looking=C2=A0 for=C2=A0 ideas=C2=A0 re automatically=C2=A0 swapping two RX = antennas over to one receiver
timed=C2=A0 to=C2=A0 WSPR=C2=A0 or=C2=A0 other timed digital modes to compa= re performance,
Anyone got any input please? Thanks.



--
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 mailto:dead.fets@gmail.com


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