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 w6J1Lljr004612 for ; Thu, 19 Jul 2018 03:21:49 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ffxYF-0005bz-7U for rs_out_1@blacksheep.org; Thu, 19 Jul 2018 02:16:15 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ffxY6-0005bq-U5 for rsgb_lf_group@blacksheep.org; Thu, 19 Jul 2018 02:16:06 +0100 Received: from pb-sasl1.pobox.com ([64.147.108.66] helo=sasl.smtp.pobox.com) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91_59-0488984) (envelope-from ) id 1ffxY4-0004Km-9g for rsgb_lf_group@blacksheep.org; Thu, 19 Jul 2018 02:16:05 +0100 Received: from sasl.smtp.pobox.com (unknown [127.0.0.1]) by pb-sasl1.pobox.com (Postfix) with ESMTP id 57684EEAFA; Wed, 18 Jul 2018 21:15:56 -0400 (EDT) X-DKIM-Result: Domain=pobox.com Result=Signature OK DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=pobox.com; h=message-id :date:to:from:subject:cc:in-reply-to:references:mime-version :content-type; s=sasl; bh=7BvgjmFATU5JBiSHMfragPdr4iI=; b=fYW39f mdBu9U/KZNSdYb6lwTpEsn0pnxnhOg07xRulwnS2SRq3qNloxizS4DKMs3oU3zoh jq8qj3kbPEgeer/kfUcZkY5F5Asn06Jb3KpeobBZe+hnjvCYJnC0dc4Q1hQVIIOW Tpl7RBqPxQWeJInas1CuSC21q0bNzMw+LvkWo= DomainKey-Signature: a=rsa-sha1; c=nofws; d=pobox.com; h=message-id:date :to:from:subject:cc:in-reply-to:references:mime-version :content-type; q=dns; s=sasl; b=eZ22J8anUpwCIydjeAnVNfuItQ1dfaJS 1qjPTO+S96dIcJoE9mBEPdZmlwmhGVMDI8JvH6hGzTPn5MaF+4KQbsnHTkhJLBAY A3m2AaY+/g0pPb2NvypoZrPMBw/yHlJ/qend6IneEOG5H/vmK0MMkKnxVVu8vN1S ivgW/Ph5Gi4= Received: from pb-sasl1.nyi.icgroup.com (unknown [127.0.0.1]) by pb-sasl1.pobox.com (Postfix) with ESMTP id 51032EEAF9; Wed, 18 Jul 2018 21:15:56 -0400 (EDT) Received: from main.pobox.com (unknown [47.223.122.242]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by pb-sasl1.pobox.com (Postfix) with ESMTPSA id 9CD14EEAF8; Wed, 18 Jul 2018 21:15:55 -0400 (EDT) Message-Id: <7.0.1.0.2.20180718200748.0d3c3f78@pobox.com> X-Mailer: QUALCOMM Windows Eudora Version 7.0.1.0 Date: Wed, 18 Jul 2018 20:15:48 -0500 To: rsgb_lf_group@blacksheep.org From: Nan and Sandy Sanders Cc: paul@n1bug.com In-Reply-To: <35d7f239-cf2a-d5da-195c-c54b10c91f6c@n1bug.com> References: <806f6cb0-fac1-64cc-95b6-0c2c5277f8d8@n1bug.com> <5B4C78A7.1010208@posteo.de> <19bdcc7f-1f73-8660-420a-0858bd24beaf@n1bug.com> <5B4C88EF.1090800@posteo.de> <5B4DE197.1000303@posteo.de> <5B4F3DC2.3090008@posteo.de> <35d7f239-cf2a-d5da-195c-c54b10c91f6c@n1bug.com> Mime-Version: 1.0 X-Pobox-Relay-ID: 4962819E-8AF1-11E8-A808-AD63581924B7-16367692!pb-sasl1.pobox.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 @@CONTACT_ADDRESS@@ for details. Content preview: This thread prompted me to do a quick A/B test between my LNV (34 feet tall and 7 foot ground rod) with about 300 feet twisted pair to the shack. It is in the trees about the same as N1BUGs and a PA0RDT mini whip (on a 25 foot pole, ground rod at the base) with about 120 feet of RG6 to the shack that is about 75 yards from the LNV and about 20 feet from a 50 foot tree. I used my SDR I/Q and Spectra View to look at NDBs at 253, 320 and 332 KHz (picked at semi random for strong consistent signals). The LNV was 10 DB below the Mini Whip. The signal to noise was the same as best as I could tell ( bad thunderstorm noise). The transmit antenna is under construction so I don't have coupling problems yet. I seem to hear ok. DCF39 was a regular on the waterfall last winter along with East and West coast WSPR stations on 137 KHz and an LF broadcaster was heard a time or two all on the Mini Whip in East Texas grid EM22nm. Hope this helps. Sandy WB5MMB [...] Content analysis details: (-0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [64.147.108.66 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -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: 0b2d339ae1d48966556dfb6ad64e2bce Subject: Re: LF: TX > RX isolation test Content-Type: text/plain; charset="us-ascii"; format=flowed X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.9 required=5.0 tests=FROM_ENDS_IN_NUMS 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 This thread prompted me to do a quick A/B test between my LNV (34 feet tall and 7 foot ground rod) with about 300 feet twisted pair to the shack. It is in the trees about the same as N1BUGs and a PA0RDT mini whip (on a 25 foot pole, ground rod at the base) with about 120 feet of RG6 to the shack that is about 75 yards from the LNV and about 20 feet from a 50 foot tree. I used my SDR I/Q and Spectra View to look at NDBs at 253, 320 and 332 KHz (picked at semi random for strong consistent signals). The LNV was 10 DB below the Mini Whip. The signal to noise was the same as best as I could tell ( bad thunderstorm noise). The transmit antenna is under construction so I don't have coupling problems yet. I seem to hear ok. DCF39 was a regular on the waterfall last winter along with East and West coast WSPR stations on 137 KHz and an LF broadcaster was heard a time or two all on the Mini Whip in East Texas grid EM22nm. Hope this helps. Sandy WB5MMB