Return-Path: X-Spam-DCC: paranoid 1170; Body=1 Fuz1=3 Fuz2=3 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.4 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, HTML_MESSAGE autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id t2RDsGge026879 for ; Fri, 27 Mar 2015 14:54:16 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1YbUfo-00009Q-5C for rs_out_1@blacksheep.org; Fri, 27 Mar 2015 13:51:44 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1YbUfn-00009H-SC for rsgb_lf_group@blacksheep.org; Fri, 27 Mar 2015 13:51:43 +0000 Received: from smtp2-g21.free.fr ([212.27.42.2]) by relay1.thorcom.net with esmtps (TLSv1.2:DHE-RSA-AES256-GCM-SHA384:256) (Exim 4.85) (envelope-from ) id 1YbUfl-0004hl-J7 for rsgb_lf_group@blacksheep.org; Fri, 27 Mar 2015 13:51:42 +0000 Received: from F6CNIToshiba (unknown [83.153.241.20]) by smtp2-g21.free.fr (Postfix) with SMTP id 2BC0E4B0280 for ; Fri, 27 Mar 2015 14:49:59 +0100 (CET) Message-ID: <8E681AF217084E99B66E96A98DE41D8F@F6CNIToshiba> From: =?Windows-1252?B?R3V56SBBbmRy6Q==?= To: References: <4698D0522AFD45F896A41F2D16A2D831@AGB> <19EEF7A6DD30462FA6ACC0F015DC9F52@AGB> <5509E3D5.90900@gmail.com> <55102D0C.8040405@gmail.com> <55148587.3090101@gmail.com> <5515485B.5010006@online.fr> <55155BFD.7040101@gmail.com> In-Reply-To: <55155BFD.7040101@gmail.com> Date: Fri, 27 Mar 2015 14:51:40 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 16.4.3528.331 X-MimeOLE: Produced By Microsoft MimeOLE V16.4.3528.331 X-Antivirus: avast! (VPS 150327-0, 27/03/2015), Outbound message X-Antivirus-Status: Clean X-Scan-Signature: efdc09b6b31095aa2dc5c6d2552910d5 Subject: LF: Very low power WSPR test this evening on MF Content-Type: multipart/alternative; boundary="----=_NextPart_000_0014_01D0689D.888F47F0" 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 X-Scanned-By: MIMEDefang 2.56 on 10.1.3.10 Status: O X-Status: X-Keywords: X-UID: 2799 Ce message est composi et au format MIME. ------=_NextPart_000_0014_01D0689D.888F47F0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable HI all. Stefan DK7FC is doing very interesting test using WSPR with QRP TX on MF. So this evening, I=92ll also be testing a very very low power configuration= : a.. 25 milli W output TX power (1 W and a 16 dB serial PI resistors atten= uator on 50 Ohms) ; b.. 25 meters tube vertical without top hat capacitance antenna ; c.. The PAR (apparent radiated power) is about 200 microwatt. d.. I just mesured with oscilloscope the RMS HF voltage at the base of th= e antenna (at cold end of the serial tuned coil). It is only 0.7 Volt ! Of course, I think nobody can decode this low power signal on day time. I w= ait for some WSPR reports to night... 73. Andy =96 F6CNI =96 JN19QB --- L'absence de virus dans ce courrier =E9lectronique a =E9t=E9 v=E9rifi=E9e p= ar le logiciel antivirus Avast. http://www.avast.com ------=_NextPart_000_0014_01D0689D.888F47F0 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable

HI all.

Stefan DK7FC is doing= very interesting test using WSPR with QRP TX on MF.

<= /P>

So this evening, I=92= ll also be testing a very very low power configuration :

<= /P>

25 mil= li W output TX power (1 W and a 16 dB serial PI resistors attenuator on 50 Ohms) ;
25 met= ers tube vertical without top hat capacitance antenna ;
The PAR (appar= ent radiated power) is about 200 microwatt.
I just mesured= with oscilloscope the RMS HF voltage at the base of the antenna (at cold end o= f the serial tuned coil). It is only 0.7 Volt !

Of course, I think nobody can decode this low power signal on day time. I wait= for some WSPR reports to night...

73. Andy =96 F6C= NI =96 JN19QB

L'absence de virus dans ce courrier =E9lectronique a =E9t=E9 v=E9rifi= =E9e par le logiciel antivirus Avast.
www.avast.com

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