Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dc03.r1000.mx.aol.com (Internet Inbound) with ESMTP id 5F76B38000082; Sat, 5 Nov 2011 09:06:47 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1RMfw2-0003lo-Va for rs_out_1@blacksheep.org; Sat, 05 Nov 2011 13:05:22 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1RMfw2-0003lf-A6 for rsgb_lf_group@blacksheep.org; Sat, 05 Nov 2011 13:05:22 +0000 Received: from relay.uni-heidelberg.de ([129.206.100.212]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1RMfw0-0004e8-R3 for rsgb_lf_group@blacksheep.org; Sat, 05 Nov 2011 13:05:22 +0000 Received: from freitag.iup.uni-heidelberg.de (freitag.iup.uni-heidelberg.de [129.206.29.204]) by relay.uni-heidelberg.de (8.14.1/8.14.1) with ESMTP id pA5D5KaW013876 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Sat, 5 Nov 2011 14:05:20 +0100 Received: from [129.206.22.206] (pc206.iup.uni-heidelberg.de [129.206.22.206]) by freitag.iup.uni-heidelberg.de (8.12.11.20060308/8.11.2) with ESMTP id pA5D5K3Y015367 for ; Sat, 5 Nov 2011 14:05:20 +0100 Message-ID: <4EB5344B.5000008@iup.uni-heidelberg.de> Date: Sat, 05 Nov 2011 14:04:11 +0100 From: =?ISO-8859-15?Q?Stefan_Sch=E4fer?= 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 X-Spam-Score: 1.4 (+) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,RATWARE_GECKO_BUILD=1.426 Subject: LF: CW/136.5 Content-Type: multipart/alternative; boundary="------------010405030806060700070704" 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=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 x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:438777632:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d40834eb534e74228 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. --------------010405030806060700070704 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit LF, I'm going to do some /p *CW tests in an hour. QRG is then 136.5 kHz.* The TX is my usual LF antenna in the city, keyed via a UHF link out of about 2 km distance. That should be a quiet location. The first time all the stuff finds its place in a backpack. See: http://dl.dropbox.com/u/19882028/LF/UHF%20Link.JPG Not sure if the antenna has enough gain for the distance but i expect it will be ok. Note that i am using the *active ferrite antenna for RX*. Thus it may happen that i am nulling out a calling station, so it is worth to call several times, if you like. The PTT of the TX is quasi connected to the squelch LED of the UHF RX. That works very fine up to >125 Bpm. But maybe it opens sometimes due to a local noise. To the PTT circuit i have added a time limiting watchdog circuit that limits such an unwanted opening to about 10 seconds. So, looking forward to some *QSOs* or at least a succesful testing. BTW there is no possibility to answer in QRSS. It is still CW exclusively! 73, Stefan/DK7FC --------------010405030806060700070704 Content-Type: text/html; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit LF,

I'm going to do some /p CW tests in an hour. QRG is then 136.5 kHz.

The TX is my usual LF antenna in the city, keyed via a UHF link out of about 2 km distance. That should be a quiet location.

The first time all the stuff finds its place in a backpack. See: http://dl.dropbox.com/u/19882028/LF/UHF%20Link.JPG

Not sure if the antenna has enough gain for the distance but i expect it will be ok.

Note that i am using the active ferrite antenna for RX. Thus it may happen that i am nulling out a calling station, so it is worth to call several times, if you like.

The PTT of the TX is quasi connected to the squelch LED of the UHF RX. That works very fine up to >125 Bpm. But maybe it opens sometimes due to a local noise. To the PTT circuit i have added a time limiting watchdog circuit that limits such an unwanted opening to about 10 seconds.

So, looking forward to some QSOs or at least a succesful testing. BTW there is no possibility to answer in QRSS. It is still CW exclusively!

73, Stefan/DK7FC


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