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[195.171.43.25]) by mx.google.com with ESMTP id j11si4795767wiw.64.2014.01.09.08.22.03 for ; Thu, 09 Jan 2014 08:22:03 -0800 (PST) Received-SPF: neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) client-ip=195.171.43.25; Authentication-Results: mx.google.com; spf=neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) smtp.mail=owner-rsgb_lf_group@blacksheep.org Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1W1I93-00017R-MQ for rs_out_1@blacksheep.org; Thu, 09 Jan 2014 16:07:45 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1W1I93-00017I-1i for rsgb_lf_group@blacksheep.org; Thu, 09 Jan 2014 16:07:45 +0000 Received: from mout.gmx.net ([212.227.17.22]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1W1I90-0003Lw-Hl for rsgb_lf_group@blacksheep.org; Thu, 09 Jan 2014 16:07:43 +0000 Received: from DF2JPmob ([46.115.119.24]) by mail.gmx.com (mrgmx103) with ESMTPA (Nemesis) id 0MVedf-1VtISD0GHX-00Z0lU for ; Thu, 09 Jan 2014 17:07:40 +0100 From: "Joe" To: References: <52CDB8D3.4020304@iup.uni-heidelberg.de> <1389270976.90572.YahooMailNeo@web140104.mail.bf1.yahoo.com> <52CEB1F3.9010507@iup.uni-heidelberg.de> <008a01cf0d4b$1e0758e0$5a160aa0$@de> <52CEBF22.2020504@iup.uni-heidelberg.de> In-Reply-To: <52CEBF22.2020504@iup.uni-heidelberg.de> Date: Thu, 9 Jan 2014 17:07:32 +0100 Message-ID: <00aa01cf0d54$e9a43320$bcec9960$@de> MIME-Version: 1.0 X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: Ac8NTwtJqzY9fkpoQReYs40EF4s80QAAV21Q Content-Language: de X-Provags-ID: V03:K0:ZHRIscXRRboh89M4Ontu2fqSdZkY+zPsUMrq8Vo2Ihf01IPvoCS rqNjIh48hY6ulDKrdC5hsvtIYHm8gQZq+XVnk0HlJ3RR2CT1RbYPOCpja5A8XDxOqATn4A7 8aJmFbFCwiYmaRh2EShgcbP6Obx6igEpZl8VDUWEi6emB2QTljaOR+kKG96+QkhJ5dhVfSw oUCRFhnXHicvStBuyJg2Q== X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Hi Stefan. >Hmm, ever thought about another PA type? Are you using a audio PA? Yes, a Hafler 9505. Regular no problem, but it is to warm outside. Last night 14°C. [...] 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 [212.227.17.22 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (df2jp[at]gmx.de) -0.0 SPF_PASS SPF: sender matches SPF record 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: 55db901127f87fafbf8ae301dac99c44 Subject: AW: LF: WSPR-15 tonite Content-Type: multipart/alternative; boundary="----=_NextPart_000_00AB_01CF0D5D.4B689B20" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.2 required=5.0 tests=HTML_50_60,HTML_MESSAGE 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 is a multi-part message in MIME format. ------=_NextPart_000_00AB_01CF0D5D.4B689B20 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Stefan. =20 >Hmm, ever thought about another PA type? Are you using a audio PA? =20 Yes, a Hafler 9505. Regular no problem, but it is to warm outside. Last night 14=B0C. =20 > Stefan, I will try to join in, but the weather forecast looks not = good. Again rain and we have already storm with 80km/h gusts. >Well, the forces to the antenna are probably the same, if you are transmitting or not. And what about the rain? What happens if you = transmit during the rain? >Is it the isolator holding the wire which gets a = problem when beeing wet or is it the loading coil? Or just the detuning? =20 It is the detuning. Strong wind from the west or southwest squeeze the 3 wires of the Top-C and let them jump or dance :o) wich causes a change = in the antenna impedance. Z is jumping around 20 =96 80 Ohms. Another point ist he earth conductivity which change extremely when it geting wet. I tuned my antenna last night before starting my transmission. I allways = do this with an miniVNA, which works perfect. It was tuned to 137.600kHz, this morning after the rain, it was tuned to 144,900kHz! Due to the small BW it makes no sense to transmit under such conditions. =20 73 Joe =20 =20 Von: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] Im Auftrag von Stefan = Sch=E4fer Gesendet: Donnerstag, 9. Januar 2014 16:24 An: rsgb_lf_group@blacksheep.org Betreff: Re: LF: WSPR-15 tonite =20 Hello Joe,=20 Am 09.01.2014 15:57, schrieb Joe:=20 This 15 min TX periods are real =84Linear Amp Killers=93, I do not need = any heating at the moment. Hmm, ever thought about another PA type? Are you using a audio PA? =20 Stefan, I will try to join in, but the weather forecast looks not good. Again rain and we have already storm with 80km/h gusts. Well, the forces to the antenna are probably the same, if you are transmitting or not. And what about the rain? What happens if you = transmit during the rain? Is it the isolator holding the wire which gets a = problem when beeing wet or is it the loading coil? Or just the detuning? 73, Stefan=20 ------=_NextPart_000_00AB_01CF0D5D.4B689B20 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hi Stefan.

 

>Hmm, ever = thought about another PA type? Are you using a audio = PA?

 

Yes, a Hafler 9505. Regular no problem, but it is=A0 = to warm outside. Last night 14=B0C.

 

> Stefan, I will try to join in, but the weather forecast looks not = good. Again rain and we have already storm with 80km/h = gusts.

>Well, the forces to = the antenna are probably the same, if you are transmitting or not. And = what about the rain? What happens if you transmit during the rain? = >Is it the isolator holding the wire which gets a problem when beeing = wet or is it the loading coil? Or just the detuning?

 

It is the = detuning. Strong wind from the west or southwest squeeze the 3 wires of = the Top-C and let them jump or dance :o) wich causes a change in the = antenna impedance. Z is jumping around 20 – 80 = Ohms.

Another point ist he earth = conductivity which change extremely when it geting wet.

I tuned my antenna last night before starting my = transmission. I allways do this with an miniVNA, which works = perfect.

It was tuned to 137.600kHz, = this morning after the rain, it was tuned to 144,900kHz! Due to the = small BW it makes no sense to transmit under such = conditions.

 

73 Joe



 

 

Von: owner-rsgb_lf_group@blacksheep.org = [mailto:owner-rsgb_lf_group@blacksheep.org] Im Auftrag von Stefan = Sch=E4fer
Gesendet: Donnerstag, 9. Januar 2014 = 16:24
An: rsgb_lf_group@blacksheep.org
Betreff: Re: = LF: WSPR-15 tonite

 

Hello Joe, =

Am 09.01.2014 15:57, schrieb Joe:

This 15 min TX periods are real „Linear Amp Killers“, I = do not need any heating at the moment.

Hmm, ever thought about another PA type? Are you using = a audio PA?


 

Stefan, I will try to join in, but the weather forecast looks not = good. Again rain and we have already storm with 80km/h = gusts.

Well, the forces to the = antenna are probably the same, if you are transmitting or not. And what = about the rain? What happens if you transmit during the rain? Is it the = isolator holding the wire which gets a problem when beeing wet or is it = the loading coil? Or just the detuning?

73, Stefan =



=

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