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=-0.5 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, HTML_50_60,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 t9ILNv53024867 for ; Sun, 18 Oct 2015 23:23:57 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ZnvOP-0003X2-Oa for rs_out_1@blacksheep.org; Sun, 18 Oct 2015 22:21:25 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ZnvOP-0003Wt-Dc for rsgb_lf_group@blacksheep.org; Sun, 18 Oct 2015 22:21:25 +0100 Received: from mout01.posteo.de ([185.67.36.65]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.86) (envelope-from ) id 1ZnvNP-0006Xu-Oj for rsgb_lf_group@blacksheep.org; Sun, 18 Oct 2015 22:21:24 +0100 Received: from dovecot03.posteo.de (dovecot03.posteo.de [172.16.0.13]) by mout01.posteo.de (Postfix) with ESMTPS id 1A5BF20927 for ; Sun, 18 Oct 2015 23:20:08 +0200 (CEST) Received: from mail.posteo.de (localhost [127.0.0.1]) by dovecot03.posteo.de (Postfix) with ESMTPSA id 3nfDdN01f3z5vN7 for ; Sun, 18 Oct 2015 23:20:08 +0200 (CEST) Message-ID: <56240D07.1090206@posteo.de> Date: Sun, 18 Oct 2015 23:20:07 +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: <579355A36AEE9D4FA555C45D556003AB1B227339@servigilant.vigilant.local>,<56221C58.8010200@posteo.de> <579355A36AEE9D4FA555C45D556003AB1B227788@servigilant.vigilant.local>,<56226EED.7020302@posteo.de> <579355A36AEE9D4FA555C45D556003AB1B227D52@servigilant.vigilant.local>,<5622D6E0.5000402@posteo.de> <579355A36AEE9D4FA555C45D556003AB1B2285A7@servigilant.vigilant.local> In-Reply-To: <579355A36AEE9D4FA555C45D556003AB1B2285A7@servigilant.vigilant.local> X-Scan-Signature: 84016abdd353c82964b6d256164a353f Subject: Re: LF: EA5DOM going vertical Content-Type: multipart/alternative; boundary="------------090805020405030903040704" 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: 4496 This is a multi-part message in MIME format. --------------090805020405030903040704 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Hi Luis, Am 18.10.2015 21:59, schrieb VIGILANT Luis Fernández: > For the transformer I plan to recycle the one osed for the loop. It > has two big toroids 80mm external diameter > and 8mm thick. Both joined make 16mm thick. Unfortunately don't know > which is the material used Hm, sounds not optimal, somehow :-) But just start with a 1:1 transformer and a 50 Ohm dummy load as a first test. If the transformer stays cold and the load (e.g. power consumption, or current meter reading of the power supply) is the same with or without the transformer, everything is fine. > > Can be primary and secondary be wounded one on top of the other ?? Yes, this is recommended! > Tonight reports on my remote monitor are 3dB down. I made a modification > I have finally connected a wire from top terrace to the fire > extinguish pipe which runs inside the building down > to the basements, were pumping system is located. The wire is not yet > connected to the ground side of the vertical > BUT the actual radial counterpoise runs parallel to this wire for about 5m > > Seems like this can be the cause of 3dB looses. ...but maybe the situation is different when matching the PA properly. In the moment you don't know at all what the feed point impedance is. ...and how the PA behaves at that impedance connected. > Keep tuned ! RR. GL, 73, Stefan --------------090805020405030903040704 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Hi Luis,

Am 18.10.2015 21:59, schrieb VIGILANT Luis Fernández:
For the transformer I plan to recycle the one osed for the loop. It has two big toroids 80mm external diameter
and 8mm thick. Both joined make 16mm thick. Unfortunately don't know which is the material used
Hm, sounds not optimal, somehow :-) But just start with a 1:1 transformer and a 50 Ohm dummy load as a first test. If the transformer stays cold and the load (e.g. power consumption, or current meter reading of the power supply) is the same with or without the transformer, everything is fine.


Can be primary and secondary be wounded one on top of the other ??
Yes, this is recommended!
Tonight reports on my remote monitor are 3dB down. I made a modification
I have finally connected a wire from top terrace to the fire extinguish pipe which runs inside the building down
to the basements, were pumping system is located. The wire is not yet connected to the ground side of the vertical
BUT the actual radial counterpoise runs parallel to this wire for about 5m

Seems like this can be the cause of 3dB looses.
...but maybe the situation is different when matching the PA properly. In the moment you don't know at all what the feed point impedance is. ...and how the PA behaves at that impedance connected.
 Keep tuned !
RR. GL,

73, Stefan
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