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[195.171.43.25]) by mx.google.com with ESMTP id i10si23315134wjz.160.2014.01.03.09.08.59 for ; Fri, 03 Jan 2014 09:08:59 -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 1Vz7Z7-0004l7-6K for rs_out_1@blacksheep.org; Fri, 03 Jan 2014 16:25:41 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Vz7Z6-0004ky-JR for rsgb_lf_group@blacksheep.org; Fri, 03 Jan 2014 16:25:40 +0000 Received: from vsmtp12.tin.it ([212.216.176.206]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1Vz7Z4-0005xI-5w for rsgb_lf_group@blacksheep.org; Fri, 03 Jan 2014 16:25:39 +0000 Received: from marco09cqcdi12 (87.0.27.68) by vsmtp12.tin.it (8.6.060.28) id 5214CA7A14064FC0 for rsgb_lf_group@blacksheep.org; Fri, 3 Jan 2014 17:25:36 +0100 Message-ID: <00fb01cf08a0$6ec7ef60$0201a8c0@marco09cqcdi12> From: "Marco Cadeddu" To: References: <00d701cf0894$36449500$0201a8c0@marco09cqcdi12> Date: Fri, 3 Jan 2014 16:25:35 -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: -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: ..me again.... at abt 15.4 0UTC the signal at 8270and noise went down (disappeared)! cheked both antenna and audio input of the pc and they are ok. (the SR Calibrator collects datas and detects the reference signal; audio generator connected to SB input is detected from SL and the input cable routed to traditional rx allows normal reception) now increasing the input gain (on SL the amplitude scale show noise < -130dB) [...] 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 [212.216.176.206 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (marcocadeddu[at]tin.it) -0.5 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: 059065dc6500ac08f691f2dd07d4538f Subject: LF: Re: Re: 8270Hz Content-Type: multipart/alternative; boundary="----=_NextPart_000_00F8_01CF08A0.6E851A00" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=HTML_30_40,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_00F8_01CF08A0.6E851A00 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable ..me again.... at abt 15.4 0UTC the signal at 8270and noise went down (disappeared)! cheked both antenna and audio input of the pc and they are ok. (the SR = Calibrator collects datas and detects the reference signal; audio = generator connected to SB input is detected from SL and the input cable = routed to traditional rx allows normal reception) now increasing the input gain (on SL the amplitude scale show noise < = -130dB) strange things happens.... Marco, IK1HSS =20 ----- Original Message -----=20 From: Marco Cadeddu=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Friday, January 03, 2014 2:58 PM Subject: LF: Re: 8270Hz Hello Uwe, just switched on since few minutes on this side, and probably made = something wrong... Ant miniwhip like 10m from the roof (abr 45mabove ground) RX SpecLab using configuration "8.97kHz 0,95 mHz 300s MSK locked" I = moved to 8270 Hz changing the the "center frequency" to 8270Hz being no = able to QSY in other way (is that correct??) The SR calbrator is moved to 19580Hz GBZ. So this is the setup and see a signal just on 8270,0 Hz which is close = to 20dB over the noise....ok this is the dreamer band but I can't = believe I'm seeing your signal... Can anybody give a suggestion? 73, Marco IK1HSS=20 ----- Original Message -----=20 From: uwe-jannsen@kabelmail.de=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Friday, January 03, 2014 1:30 PM Subject: LF: 8270Hz OK. OK. dreamers, the TX is on the air since 1309UTC.=20 QRG: 8270.000Hz. WX: continuous rain but not so strong. when ever the order comes, I can switch to Op-4H. GL Uwe/dj8wx -------------------------------------------------------------------------= --- Von: rsgb_lf_group@blacksheep.org Gesendet: 03.01.2014 13:21 An: rsgb_lf_group@blacksheep.org Kopie: paul@abelian.netcom.co.uk Betreff: Fw: VLF: 8.275 kHz -------------------------------------------------------------------------= --- Paul Nicholson put forth the important argument that we'd better = stay away from 8280 because it's a multiple of 60 Hz. Mains harmonics = tend to drift a bit with the line frequeny so further away is better.=20 Thus I retract my preposition, and suggest instead to stay with the = original 8270 Hz. Uwe, go ahead! Best 73, Markus PS Direct harmonics from 16.67 Hz are relatively weak here, even = though the railway is only 400 m away. It looks more like carriers from = switchmode power conversion units (eg near 8 kHz), accompanied by the = telltale 33 Hz spaced sidebands. Unfortunately these frequencies are not = easily predictable.=20 From: Paul=20 Sent: Friday, January 03, 2014 12:56 PM To: Markus Vester=20 Subject: Re: VLF: 8.275 kHz 8970 is well placed with respect to harmonics of both 50 and 60Hz. 8270/8275 not so good in a 60Hz region. 8124 to 8126 would be a good range, considering harmonics of 16.67Hz, 50Hz, and 60Hz. Let me know what is decided, I will switch my spectrogram over to the new band. -- Paul Nicholson -- ------=_NextPart_000_00F8_01CF08A0.6E851A00 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
..me again....
at abt 15.4 0UTC the signal at 8270and = noise went=20 down (disappeared)!
cheked both antenna and audio input of = the pc and=20 they are ok. (the SR Calibrator collects datas and detects the reference = signal;=20 audio generator connected to SB input is detected from SL and the input = cable=20 routed to traditional rx allows normal reception)
now increasing the input gain (on SL = the amplitude=20 scale show noise < -130dB)
 
strange things happens....
 
Marco, IK1HSS
 
----- Original Message -----
From:=20 Marco=20 Cadeddu
Sent: Friday, January 03, 2014 = 2:58=20 PM
Subject: LF: Re: 8270Hz

Hello Uwe,
 
just switched on since few minutes on = this side,=20 and probably made something wrong...
Ant miniwhip like 10m from the roof = (abr 45mabove=20 ground)
RX SpecLab using configuration = "8.97kHz 0,95 mHz=20 300s MSK locked" I moved to 8270 Hz changing the the "center = frequency" to=20 8270Hz being no able to QSY in other way (is that = correct??)
The SR calbrator is moved to 19580Hz=20 GBZ.
So this is the setup and see a signal = just on=20 8270,0 Hz which is close to 20dB over the noise....ok this is the = dreamer band=20 but I can't believe I'm seeing your signal...
Can anybody give a = suggestion?
 
73, Marco IK1HSS 
----- Original Message -----
From:=20 uwe-jannsen@kabelmail.de =
To: rsgb_lf_group@blacksheep.org= =20
Sent: Friday, January 03, = 2014 1:30=20 PM
Subject: LF: 8270Hz

OK.=20 OK. dreamers, the TX is on the air since 1309UTC.
QRG:=20 8270.000Hz.
WX: continuous rain but not so strong.
when ever = the order=20 comes, I can switch to Op-4H.
GL
Uwe/dj8wx
Von: rsgb_lf_group@blacksheep.org=
Gesendet:=20 03.01.2014 13:21
An: rsgb_lf_group@blacksheep.org=
Kopie:=20 paul@abelian.netcom.co.ukBetreff:=20 Fw: VLF: 8.275 kHz

Paul = Nicholson put=20 forth the important argument that we'd better stay away from 8280 = because=20 it's a multiple of 60 Hz. Mains harmonics tend to drift a bit = with the=20 line frequeny so further away is better.
 
Thus I = retract my=20 preposition, and suggest instead to stay with the original = 8270=20 Hz.
 
Uwe, go=20 ahead!
 
Best = 73,
Markus
 
PS Direct = harmonics=20 from 16.67 Hz are relatively weak here, even though the railway is = only 400=20 m away. It looks more like carriers from switchmode = power=20 conversion units (eg near 8 kHz), accompanied by the = telltale=20 33 Hz spaced sidebands. Unfortunately these frequencies are not = easily=20 predictable.=20
 

From: Paul
Sent: Friday, January 03, 2014 12:56 PM
Subject: Re: VLF: 8.275 kHz


8970 is well placed with respect to harmonics = of
both=20 50 and 60Hz.

8270/8275 not so good in a 60Hz = region.

8124 to=20 8126 would be a good range, considering
harmonics of 16.67Hz, = 50Hz, and=20 60Hz.

Let me know what is decided, I will switch my=20 spectrogram
over to the new band.

--
Paul=20 Nicholson
--
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