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 vBKMp1ZG029056 for ; Wed, 20 Dec 2017 23:51:04 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1eRn7e-0000oD-Ku for rs_out_1@blacksheep.org; Wed, 20 Dec 2017 22:45:58 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1eRn7b-0000o4-J9 for rsgb_lf_group@blacksheep.org; Wed, 20 Dec 2017 22:45:55 +0000 Received: from mout01.posteo.de ([185.67.36.65]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1eRn7Y-0006tD-QI for rsgb_lf_group@blacksheep.org; Wed, 20 Dec 2017 22:45:54 +0000 Received: from submission (posteo.de [89.146.220.130]) by mout01.posteo.de (Postfix) with ESMTPS id 3BF3720F83 for ; Wed, 20 Dec 2017 23:45:49 +0100 (CET) X-DKIM-Result: Domain=posteo.de Result=Signature OK DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.de; s=2017; t=1513809949; bh=cH7JvoDFSzwG04QUxpJLBTvl3s6GTlyJdTNLFTMpzaQ=; h=Date:From:To:Subject:From; b=WbMY2kClmdTTFooad22pOjdZwjh/GXvobCHQDZGwmfXEI4/pkdLHngnTk/WyQ2KU3 A2XxSj7CBkPkxKSCXXTeo2/ulNVwbBFgNS4zEK66DtQPl0SsE8ZV0qTxsdU7cElw1Q jsFu8vcWsA7QBjzjYGCYJTh2LIkei5jZG96VJYoDJlVjskwJJuoUtzc55Qg/Pujt+Q JsFv7PCnxWpxaQ/YB1kxnKR8OIwhAo+c6MlI5DOSXHGYzBUapoiULITsqMd/Y09vZm 6R1QLMz/SkjBxaLorlHnkB9HbZ22zwmm9Jf3z46LMwutbLTCBdTvdzCbhgWwx2bs0P DGpCNCl+h0zNA== Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 3z28xm380lz9rxC for ; Wed, 20 Dec 2017 23:45:48 +0100 (CET) Message-ID: <5A3AE81B.9010205@posteo.de> Date: Wed, 20 Dec 2017 23:45:47 +0100 From: DK7FC User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <4ffc7958-810a-e4d2-7745-258a58338934@n1bug.com> In-Reply-To: <4ffc7958-810a-e4d2-7745-258a58338934@n1bug.com> 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 Paul, Congrats to your first transmission! How do you couple the PA output to the antenna? Are you using an isolating ferrite transformer? Without knowing your problem in detail, this is the first thing i would suggest to use! Separate the antenna earth from the shack earth by such a transformer. [...] 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 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 7001055fa59a9c23b9831ea6d317a074 Subject: Re: LF: TXing 2200m WSPR Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none 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 Hi Paul, Congrats to your first transmission! How do you couple the PA output to the antenna? Are you using an isolating ferrite transformer? Without knowing your problem in detail, this is the first thing i would suggest to use! Separate the antenna earth from the shack earth by such a transformer. 73, Stefan Am 20.12.2017 23:32, schrieb N1BUG: > After nearly 10 months of planning and work, I am able to make my > first transmissions on LF! I am running 10 watts from the transmitter. > EIRP is a bit less than the claimed 0.1 watt. > > I am having some difficulty which I do not yet understand. It could be > the antenna (arcing), the coax, the amplifier (oscillating), the > scopematch (lying) or some combination of these things. :) > > I can say that I do not trust the little amplifier. Mine clearly does > not behave as the designer says it should, so it is suspect. > > I will leave WSPR running tonight for as long as things remain > acceptably stable at this power level. I have a CW ID at the end of > each WSPR transmission. If anyone can hear the CW, please let me know! > > 73, > Paul N1BUG >