Return-Path: Received: from rly-me10.mx.aol.com (rly-me10.mail.aol.com [172.20.83.44]) by air-me09.mail.aol.com (v126.13) with ESMTP id MAILINME092-9e04b22dc9eee; Fri, 11 Dec 2009 18:58:36 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-me10.mx.aol.com (v125.7) with ESMTP id MAILRELAYINME104-9e04b22dc9eee; Fri, 11 Dec 2009 18:58:23 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1NJFMP-0003gi-QS for rs_out_1@blacksheep.org; Fri, 11 Dec 2009 23:57:21 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1NJFMP-0003gZ-7p for rsgb_lf_group@blacksheep.org; Fri, 11 Dec 2009 23:57:21 +0000 Received: from imr-mb02.mx.aol.com ([64.12.207.163]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1NJFMO-0004DF-0F for rsgb_lf_group@blacksheep.org; Fri, 11 Dec 2009 23:57:21 +0000 Received: from imo-da03.mx.aol.com (imo-da03.mx.aol.com [205.188.169.201]) by imr-mb02.mx.aol.com (8.14.1/8.14.1) with ESMTP id nBBNvAIc030705 for ; Fri, 11 Dec 2009 18:57:10 -0500 Received: from MarkusVester@aol.com by imo-da03.mx.aol.com (mail_out_v42.5.) id l.c9c.58f66b27 (34983) for ; Fri, 11 Dec 2009 18:57:05 -0500 (EST) Received: from Black (g229087131.adsl.alicedsl.de [92.229.87.131]) by cia-da08.mx.aol.com (v127.6) with ESMTP id MAILCIADA088-88a74b22dc4c21a; Fri, 11 Dec 2009 18:57:01 -0500 Message-ID: <031E83CD8D72440486D28C1EBA4E53C3@Black> From: "Markus Vester" To: References: <88EEC52E6C874CCEB966804D073A3376@White> <57a24ca70912110724l43b18b68t5d2f18849fb14147@mail.gmail.com> In-Reply-To: <57a24ca70912110724l43b18b68t5d2f18849fb14147@mail.gmail.com> Date: Sat, 12 Dec 2009 00:56:55 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6000.16480 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6000.16669 X-Spam-Flag:NO X-AOL-SENDER: MarkusVester@aol.com X-Karma: unknown: X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: Re: LF: Intercontinental LF waterholes Content-Type: multipart/alternative; boundary="----=_NextPart_000_002A_01CA7AC5.FFCBE920" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.9 required=5.0 tests=HTML_30_40,HTML_MESSAGE, MISSING_OUTLOOK_NAME 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-IP: 193.82.116.20 ------=_NextPart_000_002A_01CA7AC5.FFCBE920 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Dear Warren, LF, well your point about the winter night is perfectly understood...=20 A fixed QRG will not be a problem for transatlantic contacts, as long= as we Eu's would transmit in the lower band. Only if during the secon= d half of your night you'd aim West, and someone from over there might= want to fire up near your QRG, the two of you could end up blocking= possible coast-to-coast contacts.=20 There is also a technical answer: you could perhaps tune remotely usin= g a relay, or even connect the additional capacitance at the input of= the feedline. It may add in a bit of extra loss but not much, as only= 2% of the reactance would need to be switched. Best wishes, Markus (DF6NM) ----- Original Message -----=20 From: "Warren Ziegler" To: Sent: Friday, December 11, 2009 4:24 PM Subject: Re: LF: Intercontinental LF waterholes Markus, My antenna tuning unit is outside 100 meters away from= the ham shack. I am unwilling to go out in the winter night to retune the antenna to= QSY to the lower frequency segment. --=20 73 Warren K2ORS WD2XGJ WD2XSH/23 WE2XEB/2 WE2XGR/1 On Fri, Dec 11, 2009 at 3:38 AM, Markus Vester = wrote: Dear LF, the passage should have said: Taking into account the path of mutual darkness, this would mean that= all stations should transmit in the UPPER band during their evenings= until local midnight, and then QSY to the lower band for the rest of= the night. Sorry for the confusion. 73, Markus ... ------=_NextPart_000_002A_01CA7AC5.FFCBE920 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Dear Warren, LF,
 
well your point about the winter= night is=20 perfectly understood...
 
A fixed QRG will not be a= =20 problem for transatlantic contacts, as long as we Eu's would tran= smit in=20 the lower band. Only if during the second half of your night you'= d aim=20 West, and someone from over there might want to fire up near= your=20 QRG, the two of you could end up=20 blocking possible coast-to-coast contacts.
 
There is also a technical answer= : you could=20 perhaps tune remotely using a relay, or even connect the addition= al=20 capacitance at the input of the feedline. It may add in a bit of= extra loss=20 but not much, as only 2% of the reactance would need to be=20 switched.
 
Best wishes,
Markus (DF6NM)
 
----- Original Message -----
From: "Warren Ziegler" <wd2x= gj@gmail.com>
To: <rsgb_lf_grou= p@blacksheep.org>
Sent: Friday, December 11, 2009 4:24= =20 PM
Subject: Re: LF: Intercontinental LF= =20 waterholes

Markus,

   &n= bsp;         =20 My antenna tuning unit is outside 100 meters away from the ham shack.<= BR> I=20 am unwilling to go out in the winter night to retune the antenna to QS= Y to the=20 lower frequency segment.

--
73 Warren=20 K2ORS
          &= nbsp;    =20 WD2XGJ
          =      =20 WD2XSH/23
         &nb= sp;     =20 WE2XEB/2
         &nbs= p;     =20 WE2XGR/1

On Fri, Dec 11, 2009 at 3:38 AM, Markus Vester <markusvester@aol.com>= =20 wrote:
Dear LF,

the passage should ha= ve=20 said:

Taking into account the path of mutual darkness, this wou= ld mean=20 that all stations should transmit in the UPPER band during their eveni= ngs until=20 local midnight, and then QSY to the lower band for the rest of the=20 night.

Sorry for the confusion.

73,=20 Markus
...
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