Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-db06.r1000.mx.aol.com (Internet Inbound) with ESMTP id EA894380000A0; Thu, 27 Jun 2013 04:23:38 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1UruJM-0005Lu-GN for rs_out_1@blacksheep.org; Wed, 26 Jun 2013 19:19:20 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1UruJL-0005Lj-T3 for rsgb_lf_group@blacksheep.org; Wed, 26 Jun 2013 19:19:19 +0100 Received: from vsmtp4.tin.it ([212.216.176.224]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1UruJH-0001GJ-4I for rsgb_lf_group@blacksheep.org; Wed, 26 Jun 2013 19:19:18 +0100 Received: from marco09cqcdi12 (80.116.96.51) by vsmtp4.tin.it (8.6.060.15) id 51B9C465015C3F67 for rsgb_lf_group@blacksheep.org; Wed, 26 Jun 2013 20:19:13 +0200 Message-ID: <001801ce7299$a96a93e0$0201a8c0@marco09cqcdi12> From: "Marco Cadeddu" To: References: <003d01ce71b1$fc0c55e0$f42501a0$@comcast.net> <51C9B3DE.6070603@psk31.plus.com> <51C9D009.6030802@iup.uni-heidelberg.de> <51C9F5E2.5020507@iup.uni-heidelberg.de> <51CA027E.4040308@psk31.plus.com> <51CA0850.5060103@iup.uni-heidelberg.de> Date: Wed, 26 Jun 2013 18:19:13 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Spam-Score: -1.3 (-) 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: .. you should replace the stainless steel wire with an aluminium wire... lighter and with lower losses... in this way you could improve the signal and I'm sure that Markus will listen to you also via long path! [...] Content analysis details: (-1.3 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [212.216.176.224 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (marcocadeddu[at]tin.it) -1.3 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: 14e68a9cb6dee915a96310ea9bf261c5 Subject: Re: LF: MF propagation Content-Type: multipart/alternative; boundary="----=_NextPart_000_0015_01CE7299.A8F82300" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.1 required=5.0 tests=HTML_40_50,HTML_MESSAGE, HTML_TAG_EXISTS_TBODY,HTML_TITLE_EMPTY 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 x-aol-global-disposition: S X-AOL-REROUTE: YES x-aol-sid: 3039ac1d405a51cbf68a0b3a X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. ------=_NextPart_000_0015_01CE7299.A8F82300 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable .. you should replace the stainless steel wire with an aluminium wire... lighter and with lower losses... in this way you could improve the = signal and I'm sure that Markus will listen to you also via long path! .... .. .... .. 73 Marco IK1HSS ----- Original Message -----=20 From: Stefan Sch=E4fer=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Tuesday, June 25, 2013 9:14 PM Subject: Re: LF: MF propagation Hi Eddie,=20 Yes and it is not new and it has all been done in the past :-) The feeder is 10mm diameter stainless steel. I guess it takes at least = 300A before it melts :-) So the limit would be the withstand voltage of = the ceramic isolator, even on MF :-) 73, Stefan Am 25.06.2013 22:50, schrieb g3zjo:=20 Hi Stefan Did you look to see if your feeder had taken one hour to melt? :-)=20 You know that WSPR's auto reporting is of no use at all and the = quick QSO Mode 599 imi 599 is the preferred method. 73 Eddie On 25/06/2013 20:56, Stefan Sch=E4fer wrote:=20 MF,=20 I just saw this:=20 Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az=20 2013-06-25 19:48 DK7FC 0.475690 0 -1 JN49ik 1 = IW4DXW JN64bw 563 151 =20 2013-06-25 19:42 DK7FC 0.475689 -2 0 JN49ik 1 = IW4DXW JN64bw 563 151 =20 2013-06-25 19:36 DK7FC 0.475690 -2 0 JN49ik 1 = IW4DXW JN64bw 563 151 =20 2013-06-25 19:24 DK7FC 0.475690 -8 -1 JN49ik 1 = IW4DXW JN64bw 563 151 =20 2013-06-25 19:18 DK7FC 0.475690 -8 0 JN49ik 1 = IW4DXW JN64bw 563 151 =20 2013-06-25 19:12 DK7FC 0.475690 -9 0 JN49ik 1 = IW4DXW JN64bw 563 151 =20 2013-06-25 19:00 DK7FC 0.475690 -17 0 JN49ik 1 = IW4DXW JN64bw 563 151 =20 2013-06-25 18:54 DK7FC 0.475689 -23 0 JN49ik 1 = IW4DXW JN64bw 563 151=20 I find it interesting to see that the propagation on 630m between = JN49 and JN64, just 563 km, changed so rapidly and consistant from a = non-decode to an SNR of 0 dB, i.e. by about 30 dB in one hour! At EA2HB we can see now daily when the band opens from DL to EA = and when it closes. A really useful software! 73, Stefan/DK7FC ------=_NextPart_000_0015_01CE7299.A8F82300 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
.. you should replace the stainless = steel wire with=20 an aluminium wire...
lighter and with lower losses... in = this way you=20 could improve the signal and I'm sure that Markus will listen to you = also via=20 long path!
 
.... .. .... ..
 
73 Marco IK1HSS
----- Original Message -----
From:=20 Stefan = Sch=E4fer
Sent: Tuesday, June 25, 2013 = 9:14=20 PM
Subject: Re: LF: MF = propagation

Hi Eddie,

Yes and it is not new and it has all = been=20 done in the past :-)

The feeder is 10mm diameter stainless = steel. I=20 guess it takes at least 300A before it melts :-) So the limit would be = the=20 withstand voltage of the ceramic isolator, even on MF :-)

73,=20 Stefan

Am 25.06.2013 22:50, schrieb g3zjo:=20
Hi=20 Stefan

Did you look to see if your feeder had taken one hour = to melt?=20 :-)
You know = that WSPR's=20 auto reporting is of no use at all and the quick QSO Mode 599 imi = 599 is the=20 preferred method.

73 Eddie

On 25/06/2013 20:56, Stefan = Sch=E4fer=20 wrote:=20
MF,

I just saw this:
Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az
 2013-06-25 19:48   DK7FC   0.475690   0   -1   JN49ik   1   IW4DXW   JN64bw   563   151 
 2013-06-25 19:42   DK7FC   0.475689   -2   0   JN49ik   1   IW4DXW   JN64bw   563   151 
 2013-06-25 19:36   DK7FC   0.475690   -2   0   JN49ik   1   IW4DXW   JN64bw   563   151 
 2013-06-25 19:24   DK7FC   0.475690   -8   -1   JN49ik   1   IW4DXW   JN64bw   563   151 
 2013-06-25 19:18   DK7FC   0.475690   -8   0   JN49ik   1   IW4DXW   JN64bw   563   151 
 2013-06-25 19:12   DK7FC   0.475690   -9   0   JN49ik   1   IW4DXW   JN64bw   563   151 
 2013-06-25 19:00   DK7FC   0.475690   -17   0   JN49ik   1   IW4DXW   JN64bw   563   151 
 2013-06-25 18:54   DK7FC   0.475689   -23   0   JN49ik   1   IW4DXW   JN64bw   563   151

I = find it=20 interesting to see that the propagation on 630m between JN49 and = JN64,=20 just 563 km, changed so rapidly and consistant from a non-decode = to an SNR=20 of 0 dB, i.e. by about 30 dB in one hour!

At EA2HB we can = see now=20 daily when the band opens from DL to EA and when it closes. A = really=20 useful software!

73,=20 Stefan/DK7FC

= ------=_NextPart_000_0015_01CE7299.A8F82300--