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=-2.2 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, FORGED_RCVD_HELO 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 u0JDiwno027610 for ; Tue, 19 Jan 2016 14:44:58 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1aLWWa-0006S4-RK for rs_out_1@blacksheep.org; Tue, 19 Jan 2016 13:40:44 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1aLWWa-0006Rv-Ib for rsgb_lf_group@blacksheep.org; Tue, 19 Jan 2016 13:40:44 +0000 Received: from s16315160.onlinehome-server.info ([87.106.80.234] helo=mail.vigilant.es) by relay1.thorcom.net with esmtp (Exim 4.86) (envelope-from ) id 1aLWVc-00040j-Gl for rsgb_lf_group@blacksheep.org; Tue, 19 Jan 2016 13:40:43 +0000 Received: from servigilant.vigilant.local ([87.216.178.132]) by vigilant.es with MailEnable ESMTP; Tue, 19 Jan 2016 14:38:03 +0100 Received: from servigilant.vigilant.local ([fe80::3cdf:95f8:c1c9:3931]) by servigilant.vigilant.local ([fe80::3cdf:95f8:c1c9:3931%13]) with mapi id 14.03.0123.003; Tue, 19 Jan 2016 14:39:11 +0100 From: =?iso-8859-1?Q?VIGILANT_Luis_Fern=E1ndez?= To: "rsgb_lf_group@blacksheep.org" Thread-Topic: LF: MF TA spot tonight Thread-Index: AQHRUo4NwzlylKbfq0CrHiqQQL6OO58CuJaAgAAYzsA= Date: Tue, 19 Jan 2016 13:39:11 +0000 Message-ID: <579355A36AEE9D4FA555C45D556003AB25327CB8@servigilant.vigilant.local> In-Reply-To: <569E2FD5.8040601@kpnmail.nl> Accept-Language: es-ES, en-US Content-Language: es-ES X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [192.168.0.2] MIME-Version: 1.0 X-Scan-Signature: a6b6ffaf48fdddf1ed5c25dc4bf03ee1 Subject: RE: LF: MF TA spot tonight Content-Type: text/plain; charset="iso-8859-1" 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 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by paranoid.lipkowski.org id u0JDiwno027610 Status: O X-Status: X-Keywords: X-UID: 6403 Hi Jan, MF >>Your antenna certainly added the radiation performance,. >>Understand that you have the feeder and coil "high". Yes. It is hard to believe but this setup is providing a great effectivity I'm lucky to live in a 26th floor building tower. And the antenna is a 10m vertical with two 6m "arms" as top load. The coil is at the base of the antenna on top terrace at 80m height from ground. The ground side of the PA output goes down to ground using a pipe inside the building. So the high voltage section is from coil to 10m vertical And the 80m pipe running down runs only RF current, which is less than 1A Using this power levels I have had no interference problem, so far (fingers crossed) So, this is why I said a 80+10m vertical top loaded and top feeded >>As you may noticed your sigs are quite strong here, sometimes in the + over region of SNR over a distance 1500km! Yes, I check the WSPR spots. F5WK gives me a +13 many times. I have not managed to get more than +5 on my monitor at 7Km. And last december I made some test with very low power. Injecting just 0dBm to the antenna I could get decoded by EB3FRN at about 300Km using Opera32 over MF You can have a look to this area using Google Earth. All is rendered in 3D and you'll see how many high building towers are located here. Benidorm is called little New York because of its skyline So far nobody had the chance (or crazy ide) of using this towers as MF antennas :-) 73 de Luis EA5DOM