Return-Path: X-Spam-DCC: paranoid 1290; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-0.7 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, HTML_MESSAGE,RATWARE_GECKO_BUILD 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 t6RM8aQa029427 for ; Tue, 28 Jul 2015 00:08:36 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ZJqW6-0003DZ-GS for rs_out_1@blacksheep.org; Mon, 27 Jul 2015 23:05:02 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ZJqW6-0003DQ-72 for rsgb_lf_group@blacksheep.org; Mon, 27 Jul 2015 23:05:02 +0100 Received: from mx02.posteo.de ([89.146.194.165]) by relay1.thorcom.net with esmtps (TLSv1.2:DHE-RSA-AES256-GCM-SHA384:256) (Exim 4.85) (envelope-from ) id 1ZJqV1-0002kQ-T4 for rsgb_lf_group@blacksheep.org; Mon, 27 Jul 2015 23:05:01 +0100 Received: from dovecot04.posteo.de (unknown [185.67.36.27]) by mx02.posteo.de (Postfix) with ESMTPS id 8DF7F25A211F for ; Tue, 28 Jul 2015 00:03:39 +0200 (CEST) Received: from mail.posteo.de (localhost [127.0.0.1]) by dovecot04.posteo.de (Postfix) with ESMTPSA id 3mgFWv2LqFzFpW0 for ; Tue, 28 Jul 2015 00:03:39 +0200 (CEST) Message-ID: <55B6AABA.8040408@posteo.de> Date: Tue, 28 Jul 2015 00:03:38 +0200 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: <44F6B31AAFEB4E9BA366603718394B73@PCD> In-Reply-To: <44F6B31AAFEB4E9BA366603718394B73@PCD> X-Scan-Signature: f3d1da032404cd5ad9531631c09e3b44 Subject: Re: LF: F6CNI to night testing a tuned loop TX on MF Content-Type: multipart/alternative; boundary="------------000803090405040908070300" 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: 3718 This is a multi-part message in MIME format. --------------000803090405040908070300 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Hello Andy, How is this possible? Your Loop points to SE, my loop also points to SE. But we are not in one line. Actually it would be best for us if our loops would point to NE. But i can receive you at -16 dB SNR in WSPR with 1 mW ERP ?? 73, Stefan Am 27.07.2015 15:18, schrieb F6CNI - Andy - JN19QB: > > Hi to all. > > This evening, I’ll transmit to test a single turn loop on MF. > > * 1 Watt HF TX ; > * Mode WSPR 2 and perhaps also OP 8 > * Loop description : > o Vertical position, top at 11 meters, bottom at 1 meters > over ground ; > o Each side wire is 7 meters long ; > o One single turn copper wire 10 mm diameter ; > o Maximun lobe NW / SE. Note : at 600 km, the front / side > lobe is about 6 dB ; > o Impedance 0.21 - 113 j ; > o Current wire 2.0 Amperes for 1 Watt output TX ; > o Top loading using a 3C90 tore isolated transformer ; > o Base tuning with a variable in parallel with a fixe > capacitor. Total needs around 3000 pF of total capacitance ; > o 50 Ohms coaxial to the TX ; > o Minimum SWR at TX when the CV is well tuned : below 1.3 / 1. > > Best 73. > > Andy. F6CNI --------------000803090405040908070300 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit Hello Andy,

How is this possible? Your Loop points to SE, my loop also points to SE. But we are not in one line. Actually it would be best for us if our loops would point to NE.
But i can receive you at -16 dB SNR in WSPR with 1 mW ERP ??

73, Stefan

Am 27.07.2015 15:18, schrieb F6CNI - Andy - JN19QB:

Hi to all.

 

This evening, I’ll transmit to test a single turn loop on MF.

 

  • 1 Watt HF TX ;
  • Mode WSPR 2 and perhaps  also OP 8
  • Loop description :
    • Vertical position, top at 11 meters, bottom at 1 meters over ground ;
    • Each side wire is 7 meters long ;
    • One single turn copper wire 10 mm diameter ;
    • Maximun lobe NW / SE. Note : at 600 km, the front / side lobe is about 6 dB ;
    • Impedance 0.21 - 113 j ;
    • Current wire 2.0 Amperes for 1 Watt output TX ;
    • Top loading using a 3C90 tore isolated transformer ;
    • Base tuning with a variable in parallel with a fixe capacitor. Total needs around 3000 pF of total capacitance ;
    • 50 Ohms coaxial to the TX ;
    • Minimum SWR at TX when the CV is well tuned : below 1.3 / 1.

 

Best 73.

 

Andy. F6CNI
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