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[195.171.43.25]) by mx.google.com with ESMTP id h8si6797666wjx.77.2013.11.18.14.14.03 for ; Mon, 18 Nov 2013 14:14:03 -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; dkim=pass header.i=@mx.aol.com Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ViWr6-0002pg-A7 for rs_out_1@blacksheep.org; Mon, 18 Nov 2013 21:59:40 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ViWr5-0002pX-FF for rsgb_lf_group@blacksheep.org; Mon, 18 Nov 2013 21:59:39 +0000 Received: from omr-m09.mx.aol.com ([64.12.143.82]) by relay1.thorcom.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.77) (envelope-from ) id 1ViWr2-0000r2-NE for rsgb_lf_group@blacksheep.org; Mon, 18 Nov 2013 21:59:38 +0000 Received: from mtaout-db02.r1000.mx.aol.com (mtaout-db02.r1000.mx.aol.com [172.29.51.194]) by omr-m09.mx.aol.com (Outbound Mail Relay) with ESMTP id 81B8E700865ED for ; Mon, 18 Nov 2013 16:59:33 -0500 (EST) Received: from White (85.155.166.230.dyn.user.ono.com [85.155.166.230]) by mtaout-db02.r1000.mx.aol.com (MUA/Third Party Client Interface) with ESMTPA id 18946E003386 for ; Mon, 18 Nov 2013 16:59:23 -0500 (EST) Message-ID: From: "Markus Vester" To: References: <7999425CD9D44F318DA5D8EF87586DB4@White> <5287F539.1070107@iup.uni-heidelberg.de> <22FB893331D04C0AA4203527A27E527B@White> <72E5AADE740A475DA38C5E3A00A6AAC9@White> <841DB258581548699A86130F860DF165@White> <5289F307.7050809@iup.uni-heidelberg.de> <6EDA9B04BB1A40889A432C01DF16A896@White> <528A8ACA.1080208@iup.uni-heidelberg.de> Date: Mon, 18 Nov 2013 22:59:20 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 12.0.1606 X-MimeOLE: Produced By Microsoft MimeOLE V12.0.1606 x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20121107; t=1384811968; bh=2VoP72yasEcrDXlKzlei9ZhncKfdTY/dFS2sPZjCAbo=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=pZ7uyJbhqYeSxpElIFSqmFuwA/ChEw9S12ZFmZuGRu17mNtBcqb+kZTdsSmAqVUT0 MxxRPW/2Pq8WVTdtzVAtwh+Yc52xaANeY5y8SNTCOZbbn/me+zBmN1WGheNd6D0zUP 9EUIdJblmZaOxOhkCE6iMRBExEOLZOzf3va4vbyI= x-aol-sid: 3039ac1d33c2528a8dbb311f X-AOL-IP: 85.155.166.230 X-Spam-Score: -0.5 (/) 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: Stefan, sorry, not this time. But it's such a good place, and I'm sure I will come back sooner or later. How about you and I going together next time, and bringing the island on air on LF or even VLF? [...] Content analysis details: (-0.5 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [64.12.143.82 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (markusvester[at]aol.com) -0.0 SPF_PASS SPF: sender matches SPF record -0.5 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: ae3221d431bd19e5880aa98eda07ece4 Subject: Re: LF: Lanzarote Content-Type: multipart/alternative; boundary="----=_NextPart_000_001E_01CEE4B1.D0C5A080" 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_TITLE_EMPTY,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: 2410 Dies ist eine mehrteilige Nachricht im MIME-Format. ------=_NextPart_000_001E_01CEE4B1.D0C5A080 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Stefan, sorry, not this time. But it's such a good place, and I'm sure I will = come back sooner or later. How about you and I going together next time, and bringing the island on = air on LF or even VLF? Best 73, Markus =20 From: Stefan Sch=E4fer=20 Sent: Monday, November 18, 2013 10:46 PM To: rsgb_lf_group@blacksheep.org=20 Subject: Re: LF: Lanzarote Hi Markus,=20 A complete call from EA8 would be very nice to have here. Would it be = possible to make a sked and you choose a clean QTH for reception?? I = would then send a burst at 100% power in DFCW and later in WSPR-15. Pse, K. 73, Stefan Am 18.11.2013 22:39, schrieb Markus Vester:=20 Hi Stefan, Bob, LF, brought the antenna back up for the night, hope it will stay put. I'm sorry about the mediocre sensitivity of the grabber in this = location. The noise level seems to be constant irrespective of day or = night, which is a sure indication that I'm dominated by local noise = rather than band noise. The spectrum is full of 50 Hz spaced lines, with = what looks like white noise inbetween. The hardware configuration is similar to the one which had worked = best during my springtime visit in 4X: a passive wire antenna with = separate earth lead, a small isolating ferrite tranformer, FiFi-SDR = receiver with a simple input filter, netbook and 19V power supply = grounded to protective earth. But here the antenna is lower (no trees on = the island), ground connection is worse (ashes and rock), and a noisy = environment. Not sure about the degree of directivity introduced by the = Famara ridge, but as it is going up by 400 to 600 m ASL it may well have = some effect. If I really wanted I could probably go out into the desert, take along = a couple of broomsticks to raise a wire, and record on battery for an = hour or so. But then there would be no internet connection, and it could = only be a single experiment of limited duration. Bob: if you want to try despite the RX deficits mentioned above, I = would recommend to use QRSS-60 or DFCW-90 in the TA slot (137775 - = 137781), as it will show traces at weaker levels than WSPR-15 would = decode. http://dl.dropboxusercontent.com/u/26404526/df6nm_MF.jpg Best 73, Markus (EA8/DF6NM) =20 From: Stefan Sch=E4fer=20 Sent: Monday, November 18, 2013 11:59 AM To: rsgb_lf_group@blacksheep.org=20 Subject: Re: LF: Lanzarote Hi Markus,=20 Thanks for the service.=20 Last night i tried again but there is no chance. It appears that the = DCF39 SNR is much lower than expected over that distance. Are you sure = this is due to the hill on the path to DCF? Do you think you can see the band noise / have the maximum = sensitivity? I assume there could be at least 10 dB, rather 20 dB to = gain. How does the diurnal wideband spectrum look there? Periodic QRM? And do you use the same equipment as in India last year? 73, Stefan/DK7FC Am 18.11.2013 10:39, schrieb Markus Vester:=20 Just went out and noticed that the wind had taken down the antenna = wire - hence the weak signals. 73, Markus From: Markus Vester=20 Sent: Monday, November 18, 2013 10:12 AM To: rsgb_lf_group@blacksheep.org=20 Subject: Re: LF: Lanzarote No signals were captured here in the Eu / TA / WSPR-15 slots last = night.=20 http://dl.dropboxusercontent.com/u/26404526/plot.jpg shows DCF39 and = HGA22 about 10 dB down on the night before. Best 73,=20 Markus (EA8/DF6NM) ------=_NextPart_000_001E_01CEE4B1.D0C5A080 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Stefan,
 
sorry, not this time. But it's such a = good place,=20 and I'm sure I will come back sooner or later.
 
How about you and I going together next = time, and=20 bringing the island on air on LF or = even VLF?
 
Best 73,
Markus  
 
 

From: Stefan = Sch=E4fer
Sent: Monday, November 18, 2013 10:46 PM
Subject: Re: LF: Lanzarote

Hi Markus, =

A=20 complete call from EA8 would be very nice to have here. Would it be = possible to=20 make a sked and you choose a clean QTH for reception?? I would then send = a burst=20 at 100% power in DFCW and later in WSPR-15.

Pse, K.

73,=20 Stefan


Am 18.11.2013 22:39, schrieb Markus Vester:=20
Hi = Stefan, Bob,=20 LF,
 
brought the antenna back up for = the night,=20 hope it will stay put.
 
I'm sorry about the mediocre = sensitivity of=20 the grabber in this location. The noise level seems to be constant=20 irrespective of day or night, which is a sure indication that I'm = dominated by local noise rather than band noise. The spectrum is full = of 50 Hz=20 spaced lines, with what looks like white noise inbetween.
 
The hardware = configuration  is similar=20 to the one which had worked best during my springtime visit = in 4X: a=20 passive wire antenna with separate earth lead, a small isolating = ferrite=20 tranformer, FiFi-SDR receiver with a simple input=20 filter, netbook and 19V power supply grounded=20 to protective earth. But here the antenna is lower (no trees = on the=20 island), ground connection is worse (ashes and rock), and a noisy=20 environment. Not sure about the degree of directivity=20 introduced by the Famara ridge, but as it is going = up by 400 to=20 600 m ASL it may well have some effect.
 
If I really wanted I could = probably=20 go out into the desert, take along a couple = of=20 broomsticks to raise a wire, and record on battery for an hour or = so. But=20 then there would be no internet connection, and it could only = be a single=20 experiment of limited duration.
 
Bob: if you want to try = despite the RX=20 deficits mentioned above, I would recommend to use QRSS-60 or = DFCW-90 in=20 the TA slot (137775 - 137781), as it will show traces at = weaker=20 levels than WSPR-15 would decode.
 
http://dl.dropboxusercontent.com/u/26404526/df6n= m_MF.jpg
 
Best 73,
Markus (EA8/DF6NM)
  
 

From: Stefan = Sch=E4fer
Sent: Monday, November = 18, 2013=20 11:59 AM
To: rsgb_lf_group@blacksheep.org
Subject: Re: LF:=20 Lanzarote

Hi Markus,

Thanks for the = service.=20
Last night i tried again but there is no chance. It appears that = the DCF39=20 SNR is much lower than expected over that distance. Are you sure this = is due=20 to the hill on the path to DCF?
Do you think you can see the band = noise /=20 have the maximum sensitivity? I assume there could be at least 10 dB, = rather=20 20 dB to gain. How does the diurnal wideband spectrum look there? = Periodic=20 QRM?
And do you use the same equipment as in India last = year?

73,=20 Stefan/DK7FC

Am 18.11.2013 10:39, schrieb Markus Vester: =
Just went out and noticed that the = wind had taken=20 down the antenna wire - hence the weak signals.
 
73, Markus

From: Markus Vester
Sent: Monday, November = 18, 2013=20 10:12 AM
To: rsgb_lf_group@blacksheep.org
Subject: Re: LF:=20 Lanzarote

No signals were captured here in the = Eu / TA /=20 WSPR-15 slots last night.
http://dl.dropboxusercontent.com/u/26404526/plot.jpg<= FONT=20 face=3DArial size=3D2> shows DCF39 and HGA22 about 10 = dB down on=20 the night before.
 
Best 73,
Markus (EA8/DF6NM)
 
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