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[195.171.43.25]) by mx.google.com with ESMTP id kt10si2267291wjb.104.1969.12.31.16.00.00; Sun, 18 Aug 2013 07:19:19 -0700 (PDT) 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 1VB3QY-0002FD-KB for rs_out_1@blacksheep.org; Sun, 18 Aug 2013 14:53:54 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1VB3QX-0002F4-Py for rsgb_lf_group@blacksheep.org; Sun, 18 Aug 2013 14:53:53 +0100 Received: from smtpout1.wanadoo.co.uk ([80.12.242.29] helo=smtpout.wanadoo.co.uk) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1VB3QV-0005KD-I9 for rsgb_lf_group@blacksheep.org; Sun, 18 Aug 2013 14:53:52 +0100 Received: from AGB ([95.145.211.223]) by mwinf5d14 with ME id EDtn1m0044pl6nz03DtnED; Sun, 18 Aug 2013 15:53:50 +0200 Message-ID: <04498D4D75BE4AD6AEF04BD9CD0C6BF5@AGB> From: "Graham" To: References: <520F60AF.2000004@iup.uni-heidelberg.de> <0127125B54F94B748D9AC87A4A813300@Clemens0811> <5210C167.1030409@iup.uni-heidelberg.de> In-Reply-To: <5210C167.1030409@iup.uni-heidelberg.de> Date: Sun, 18 Aug 2013 14:53:47 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 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. 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Content preview: QRP stations prefer to do WSPR only or have short QSOs.( Q-Q-QRP ones use Opera and ROS-MF-2 and have very long qso's ... but no one knows [but us] as the signals are under the noise G ; ) [...] 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 [80.12.242.29 listed in list.dnswl.org] 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: 3efbf4053c1a70bbeb6c0a0cc657f05e Subject: Re: LF: QRM on 472.5kHz Content-Type: multipart/alternative; boundary="----=_NextPart_000_000B_01CE9C22.BE0A72E0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.6 required=5.0 tests=HTML_20_30,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 Status: O X-Status: X-Keywords: X-UID: 2598 This is a multi-part message in MIME format. ------=_NextPart_000_000B_01CE9C22.BE0A72E0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable QRP stations prefer to do WSPR only or have short QSOs.( Q-Q-QRP ones use Opera and ROS-MF-2 and have very long qso's = ... but no one knows [but us] as the signals are under the = noise=20 G ; ) =20 From: Stefan Sch=E4fer=20 Sent: Sunday, August 18, 2013 1:43 PM To: rsgb_lf_group@blacksheep.org=20 Subject: Re: LF: QRM on 472.5kHz Hi Clemens, MF,=20 Some more thoughts about QSY: Am 18.08.2013 11:38, schrieb Clemens Paul:=20 In the mean time it would be a good idea to stay away at least 2kHz from = the usual calling qrg 472,5 when you are rag chewing for hours which was interesting to listen to.:-) The band is wide and empty enough so there is plenty of room to choose. The problem is:=20 There are only a few active CW stations on that band (over the year, not = arround xmas time). CW activity can be found between 474...473 kHz (> = 90% of all QSOs).=20 And: The regular active CW stations are the stronger ones!!=20 The reason is simple: If you struggle a long time just to get the = station deteils of the other station for the logbook, then you are happy = and tend to finish the QSO before the signal is lost in QSB completely. = You will not talk for hours, talking about others antenna :-) , when the = RST is 239! QRP stations prefer to do WSPR only or have short QSOs.( OK, the UK may = be an exception here, because the station density is much higher and = they can find active stations in a smaler range, which is fine.) Now, if these few active stations are splitting each other on the entire = band, it will be even more harder to find a QSO partner. And RX stations = will tend to choose the frequency where they can actually listen to a = QSO while doing other things in the background (like building linear = PAs), as you did last night. After some time, the actual center of CW activity would move then to = where activity can be found. And if it is true that the active stations = are the strong stations, then someone will come with the idea to make = QSY from that fequency :-) 73, Stefan/DK7FC ------=_NextPart_000_000B_01CE9C22.BE0A72E0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
QRP stations prefer to do WSPR only or have short QSOs.(
 
Q-Q-QRP  ones  use  Opera  and =20 ROS-MF-2   and  have   very long  = qso's =20 ...  but  no one  knows [but us]  as  the  = signals  are  under the  noise
 
G ; ) 
 

From: Stefan = Sch=E4fer
Sent: Sunday, August 18, 2013 1:43 PM
To: rsgb_lf_group@blacksheep.org= =20
Subject: Re: LF: QRM on 472.5kHz

Hi Clemens, MF,

Some more thoughts about = QSY:

Am=20 18.08.2013 11:38, schrieb Clemens Paul:=20 
In the mean time it would be a good idea to =
stay away at least 2kHz from the
usual calling qrg 472,5 when you are rag chewing for hours which was
interesting to listen to.:-)
The band is wide and empty enough so there is plenty of room to =
choose.

The=20 problem is:
There are only a few active CW stations on that band = (over=20 the year, not arround xmas time). CW activity can be found between = 474...473 kHz=20 (> 90% of all QSOs).
And: The regular active CW stations are the = stronger=20 ones!!
The reason is simple: If you struggle a long time just to get = the=20 station deteils of the other station for the logbook, then you are happy = and=20 tend to finish the QSO before the signal is lost in QSB completely. You = will not=20 talk for hours, talking about others antenna :-) , when the RST is = 239!
QRP=20 stations prefer to do WSPR only or have short QSOs.( OK, the UK may be = an=20 exception here, because the station density is much higher and they can = find=20 active stations in a smaler range, which is fine.)

Now, if these = few=20 active stations are splitting each other on the entire band, it will be = even=20 more harder to find a QSO partner. And RX stations will tend to choose = the=20 frequency where they can actually listen to a QSO while doing other = things in=20 the background (like building linear PAs), as you did last = night.
After some=20 time, the actual center of CW activity would move then to where activity = can be=20 found. And if it is true that the active stations are the strong = stations, then=20 someone will come with the idea to make QSY from that fequency = :-)

73,=20 Stefan/DK7FC
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