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=-2.4 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, 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 u2JDoo9T028772 for ; Sat, 19 Mar 2016 14:50:50 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ahHE7-0001o7-Kk for rs_out_1@blacksheep.org; Sat, 19 Mar 2016 13:47:35 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ahHE7-0001ny-BA for rsgb_lf_group@blacksheep.org; Sat, 19 Mar 2016 13:47:35 +0000 Received: from mail-oi0-x22b.google.com ([2607:f8b0:4003:c06::22b]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim 4.86) (envelope-from <9h9mhrlaw@gmail.com>) id 1ahHE4-0001r6-EE for rsgb_lf_group@blacksheep.org; Sat, 19 Mar 2016 13:47:34 +0000 Received: by mail-oi0-x22b.google.com with SMTP id w20so54059915oia.2 for ; Sat, 19 Mar 2016 06:47:32 -0700 (PDT) X-DKIM-Result: Domain=gmail.com Result=Good and Known Domain DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to; bh=ub6QA5/E/tWcFpG2WqYqXYMJD19QLmW8+yhKR+2dJts=; b=V8CLFTMUf3kVUbC6lEOCuv/TUDIflp/cgn9ckM8wdsF+RxES8xvO4wQ6UnXr+S8oz4 Fg1yDQuzgYWcB6PqXFcEdQHvOaTND8FHHuTPay4ODR5jjEY+jumMXJSKac2GqEoFuB9g tAQ+D8aPIGhykYYBrnNVal4DwlWLY/brITltp10cACM1S9ujQ/3+21i0+ccf1E918nmf GSxcw5V0h5VjdJ+OpTmoPpcwp+vBT0XYjNh6u4B3jPTvl10z8W9Jw/HL3yGocDt/Rg7M eBir0Llq8PHY4A7W2+bNl33E0gZWBiWnrt0dSIeVCUOBJpwyQs4Ydg4nIRxCC1JlbX5k mVYg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to; bh=ub6QA5/E/tWcFpG2WqYqXYMJD19QLmW8+yhKR+2dJts=; b=X3qYC0DY6zwaKulARwVdovrPrZOs7BvJPyisaS01VygADmyYW+ro9u2JWlZZaGTBVU AGnCpE0UQnoWPGpklbnnUzT43xRST6gJ8pggIGHbE1IGNnOzvuFodm/h4bE74hM3BV8g pI3K/bzw7XNZNv7dEqCZkhGLnQctbpHwgcV0VIfVZuTRCYMl8R6aGw+BHtQQwYR2tx5r w3rvZbyKpzWAwEquBl2LunlpvKm2m6DsW9pVwImGi3EPGvAbhO6ejiN1Zx8SxuhUV/s4 tlJWpfxBE4Ctx4Z3eLjjCoR/Jo0481dGQG42VD4tFGd5RkEL0hmiPMA7aNP652IjivcA c3fg== X-Gm-Message-State: AD7BkJKFfPeMtAUN4OrcfBpU5s178mrPPaVBocBjLrkhLX+5a6l4EcnkbVuL4KOkO8pN9pNFE2ctnpxvD+WWJQ== MIME-Version: 1.0 X-Received: by 10.202.95.68 with SMTP id t65mr11551595oib.7.1458395250221; Sat, 19 Mar 2016 06:47:30 -0700 (PDT) Received: by 10.76.7.103 with HTTP; Sat, 19 Mar 2016 06:47:30 -0700 (PDT) In-Reply-To: <42081A973ECB45D9AEDDCEF41BE9EEE3@Clemens0811> References: <56E526C8.5010401@abelian.org> <1536f9e8813-7821-7aea@webprd-m99.mail.aol.com> <56E5DCEF.4050905@abelian.org> <56E7090D.4090601@tiscali.co.uk> <56E7122E.1090907@abelian.org> <016f01d17e34$65318b80$2f94a280$@comcast.net> <56EAF20F.7050008@abelian.org> <42081A973ECB45D9AEDDCEF41BE9EEE3@Clemens0811> Date: Sat, 19 Mar 2016 14:47:30 +0100 Message-ID: From: Lawrence Galea <9h9mhrlaw@gmail.com> To: rsgb_lf_group@blacksheep.org X-Scan-Signature: 49f0f587e44d6711c57b8a4e950ba850 Subject: Re: LF: RE: O.T.: T2FD ANTENNA Content-Type: text/plain; charset=UTF-8 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: 7414 Hi Mauro Google search ttfd antenna returns About 3,390 results (0.68 seconds) Here are a few links. http://www.packetradio.com/t2fd.htm http://hf-antenna.com/015/ https://en.wikipedia.org/wiki/T2FD_antenna http://medxr.blogspot.com.mt/2015/02/the-tilted-terminated-folded-dipole.html Happy antenna brewing. Regards Lawrence On 3/19/16, Clemens Paul wrote: > Hi Mauro, > > I have no hands on experience with this antenna, > but simulations by experts have shown that one should go for a ~900 Ohm > termination resistor and at least 50m length if you want to keep losses > acceptable (5dB) on 3.5MHz. > I'll send you the article per PM. > > 73 > Clemens > DL4RAJ > > > >>-----Original Message----- >>From: owner-rsgb_lf_group@blacksheep.org >>[mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of IK1WVQ Mauro >>Sent: Friday, March 18, 2016 6:13 PM >>To: rsgb_lf_group@blacksheep.org >>Subject: LF: O.T.: T2FD ANTENNA >> >>Hi to all, >> >>someone has experience about the T2FD (Tilted Terminated Folded >>Dipole) antenna ? >> >>My need is a broadband antenna from 3.5 to 14Mhz WITHOUT any matching >>unit (TX 2W max)... >>I gladly accept to lose 30% power into the resistive termination, if >>this is the bandwidth price !! >> >>73 de Mauro IK1WVQ >> >> > > >