Return-Path: X-Spam-DCC: paranoid 1233; 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=-0.3 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, HTML_90_100,HTML_MESSAGE,RATWARE_GECKO_BUILD,RCVD_ILLEGAL_IP,SPF_PASS 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 u2AJS6kH005929 for ; Thu, 10 Mar 2016 20:28:06 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ae6Cm-0005QV-De for rs_out_1@blacksheep.org; Thu, 10 Mar 2016 19:25:04 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ae6Cm-0005QM-2G for rsgb_lf_group@blacksheep.org; Thu, 10 Mar 2016 19:25:04 +0000 Received: from mailout08.t-online.de ([194.25.134.20]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.86) (envelope-from ) id 1ae6Ck-0001ad-BM for rsgb_lf_group@blacksheep.org; Thu, 10 Mar 2016 19:25:02 +0000 Received: from fwd14.aul.t-online.de (fwd14.aul.t-online.de [172.20.26.242]) by mailout08.t-online.de (Postfix) with SMTP id 5D2088D2AB for ; Thu, 10 Mar 2016 20:25:00 +0100 (CET) Received: from [192.168.1.3] (ZG+uZ4ZG8hVnRxTk-27XuUXNFLsWyR-QRO0JA4zpIxQn0GKXV2RHCGityKLQbWjwsK@[2.163.52.173]) by fwd14.t-online.de with (TLSv1.2:ECDHE-RSA-AES256-SHA encrypted) esmtp id 1ae6Cf-0A0dNo0; Thu, 10 Mar 2016 20:24:57 +0100 To: rsgb_lf_group@blacksheep.org References: <56E18E66.7010809@t-online.de> From: "Dr. Wolf Ostwald" Message-ID: <56E1CA13.9090805@t-online.de> Date: Thu, 10 Mar 2016 20:25:07 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0 MIME-Version: 1.0 In-Reply-To: <56E18E66.7010809@t-online.de> X-ID: ZG+uZ4ZG8hVnRxTk-27XuUXNFLsWyR-QRO0JA4zpIxQn0GKXV2RHCGityKLQbWjwsK X-TOI-MSGID: 89f9f970-29aa-4c48-96af-3f253be17bef X-Scan-Signature: 42c66d61d2e01d9ed2e5564c0ef1cca6 Subject: Re: LF: Touch switched lamp influenced by lf/mf transmission Content-Type: multipart/alternative; boundary="------------080402060605030104030909" 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 10.1.3.11 Status: O X-Status: X-Keywords: X-UID: 7288 This is a multi-part message in MIME format. --------------080402060605030104030909 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit hi Chris ! You need an E-type ferrite core to put the 230v cord in. This will kill the sensitivity to Your tzransmitted RF. CQ-DL shop once had them, if You cant get any, just contact me wolf df2py Am 10.03.2016 um 16:10 schrieb christoph: > > Dear all, > > my neighbour uses a very expensive lovely designer lamp switched by a > four step touch switch. Unfortunately that switch follows keying of my > mf transmitter. Is there somebody having experience with that kind of > malfunction? > > The distance to the antenna feeding point is approximately 16m (ANT > voltage app. 2.5kV). I tested a chain of eight common mode chokes in > series to the affected lamp (mains separation of more than 100kOhms at > the desired frequency). That showed improvement in sensitivity but the > switch did not work anymore during transmission. The most effective > solution is replacing the touch switch by a normal dimmer. > > Are there better ideas to keep in use the original touch switch? > > 73, Chris > > dl7saq > --------------080402060605030104030909 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit

hi Chris !
You need an E-type ferrite core to put the 230v cord in. This will kill the sensitivity to Your tzransmitted RF.
CQ-DL shop once had them, if You cant get any, just contact me

wolf df2py

Am 10.03.2016 um 16:10 schrieb christoph:

Dear all,

my neighbour uses a very expensive lovely designer lamp switched by a four step touch switch. Unfortunately that switch follows keying of my mf transmitter. Is there somebody having experience with that kind of malfunction?

The distance to the antenna feeding point is approximately 16m (ANT voltage app. 2.5kV). I tested a chain of eight common mode chokes in series to the affected lamp (mains separation of more than 100kOhms at the desired frequency). That showed improvement in sensitivity but the switch did not work anymore during transmission. The most effective solution is replacing the touch switch by a normal dimmer.

Are there better ideas to keep in use the original touch switch?

73, Chris

dl7saq

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