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[195.171.43.25]) by mx.google.com with ESMTP id dd1si24527260wjc.24.1969.12.31.16.00.00; Sun, 13 Oct 2013 23:32:36 -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; dkim=pass (test mode) header.i=@comcast.net Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1VVbEz-00075n-VS for rs_out_1@blacksheep.org; Mon, 14 Oct 2013 07:02:53 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1VVbEy-00075e-Q2 for rsgb_lf_group@blacksheep.org; Mon, 14 Oct 2013 07:02:52 +0100 Received: from qmta09.westchester.pa.mail.comcast.net ([76.96.62.96]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1VVbEu-0004hz-AU for rsgb_lf_group@blacksheep.org; Mon, 14 Oct 2013 07:02:51 +0100 Received: from omta14.westchester.pa.mail.comcast.net ([76.96.62.60]) by qmta09.westchester.pa.mail.comcast.net with comcast id cu0o1m0021HzFnQ59u2mfo; Mon, 14 Oct 2013 06:02:46 +0000 Received: from Owner ([166.147.68.223]) by omta14.westchester.pa.mail.comcast.net with comcast id cu2Q1m00P4p1jja3au2WW3; Mon, 14 Oct 2013 06:02:41 +0000 From: "hvanesce" To: References: ,<04dc01cec7d8$f8481520$e8d83f60$@comcast.net> , In-Reply-To: Date: Mon, 14 Oct 2013 01:02:19 -0500 Message-ID: <058f01cec8a2$fad39330$f07ab990$@comcast.net> MIME-Version: 1.0 X-Mailer: Microsoft Outlook 14.0 Thread-Index: AQHqcnlK6+spofWSG44UTd+KAw0ZWAJJCnhDAXohFkQCXXfTPgFZxmnQmYBrAAA= Content-Language: en-us DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=comcast.net; s=q20121106; t=1381730566; bh=BY3ep6dHfRSSjmN3k4uY/nvGCKfYF1wM73KU/cplj9A=; h=Received:Received:From:To:Subject:Date:Message-ID:MIME-Version: Content-Type; b=mlNjODwsJfG7iwNZtdtIpyATfjZ3nO46SjehQk80LwkxXkmOnfQ1RtI/SnDlodoN1 2RasLMbw0ogD6YZYVJ39rM7UWRHTugBMxiEjD3FdFgjijpXAhbMIJSqKoYYJ7D9EtT hTEoPgwVuKTnzHLyHRm5JDxxTg9bERx7lVtobXN7tfZtilicgvErL8ULmbvodkKhgc GDnfZjnvbTk13+s8m5nOBfYt5AvzKX/lE5dGSNSL1MwdM9uhimjJQnlawz1o0wEHkw /dhZbf65c00/8HtHhDlYbkNETcdXzKOeF1VSmO4bh9x+i9PMi4gUuGCxJVmP+vGFX/ CuxZJXCPrvULw== 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: Bob, Tonight I've been estimating your SNR* at 15-minute intervals and comparing to your SNRs from last night. For the large majority of the 15-minute intervals your SNRs were higher tonight, and for the intervals in which your SNRs were higher tonight, the average difference appears to be almost 3dB. [...] 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 [76.96.62.96 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (hvanesce[at]comcast.net) -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 1.0 FREEMAIL_REPLY From and body contain different freemails X-Scan-Signature: da343f03107bc82c6ebb9a59979ef2b2 Subject: RE: LF: RE: 74.5495 will spark-up at 2200 for the evening... Content-Type: multipart/alternative; boundary="----=_NextPart_000_0590_01CEC879.11FF5FF0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.1 required=5.0 tests=HTML_60_70,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 Status: O X-Status: X-Keywords: X-UID: 1599 This is a multipart message in MIME format. ------=_NextPart_000_0590_01CEC879.11FF5FF0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Bob, Tonight I've been estimating your SNR* at 15-minute intervals and comparing to your SNRs from last night. For the large majority of the 15-minute intervals your SNRs were higher tonight, and for the intervals in which your SNRs were higher tonight, the average difference appears to be almost 3dB. * (estimated from traces on Hartmut's grabber; much appreciated Hartmut) I'm also checking databases of daily solar and ionospheric conditions, for parameters that could help to refine a model based on the data that you and the RX stations are generating. Thanks in part to your earlier start times, it may be possible to start making and refining some rough predictions of link availability (hours per day) vs distance vs season, for the existing equipment, and a means for you to extrapolate those results for any anticipated mods that you might anticipate. Are Dex and John on tonight? At 74548.5 and 74547.5? I've been looking at signals near those two frequencies the past two evenings, and if Dex is on tonight, his SNR at Hartmut's QTH dropped while yours rose, which would useful information for a model. The data that's being generated is very valuable owing to path diversity from multiple grabbers, cultural noise management at the grabbers (lots of low-QRM intervals), the long collection intervals (allows incorporation of terminator effects and better estimates of mid-day/night attenuation span for integration with parametric models), and the long paths provided by great TX and RX work and coordination between TX and RX. It's a pleasure to be able to view data of this quality. By next weekend I will have some plots, the first piece of a propagation model and reference documentation for the model that I'd like to pass along if anyone's interested. Could I send them to you? If after looking at them you think anyone would be interested, perhaps you know of a place to post them. Nice work everyone, Regards, Jim AA5BW From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Bob Raide Sent: Sunday, October 13, 2013 3:58 PM To: rsgb_lf_group@blacksheep.org Subject: RE: LF: RE: 74.5495 will spark-up at 2200 for the evening... Markus; I see the solid three letters on 74.5495 and some traces on .5485 that would be Dex, X/5 in N.C. Will be on starting around just after 2200 for the evening-thanks, and congrats on the successful OPDS decodes of last night! Bob _____ From: markusvester@aol.com To: rsgb_lf_group@blacksheep.org Date: Sun, 13 Oct 2013 22:37:02 +0200 Subject: Re: LF: RE: 74.5495 will spark-up at 2200 for the evening... Hi Bob, all, yesterday I made up a simple receive diplexer, so that I could monitor 74.55 kHz between my own LF Opera-32 transmissions. Static levels were quite low, and I was lucky enough to capture a "4 XR" fragment between 1:00 and 1:40 UT: http://dl.dropboxusercontent.com/u/26404526/74kHz/74k_131013_0500.png 74 kHz grabber will be online again tonight: http://dl.dropboxusercontent.com/u/26404526/df6nm_74kHz.jpg Best 73, Markus (DF6NM in Nuernberg, JN59NJ) From: Bob Raide Sent: Sunday, October 13, 2013 2:50 PM To: rsgb_lf_group@blacksheep.org Subject: RE: LF: RE: 74.5495 will spark-up at 2200 for the evening... Jim; Yes, I fired up at a couple minutes after 2200. Was still full light out here. Temp hit 80 yesterday and was still 60 at midnight. I saw Hartmut's grabber very impressive. Dex, WG2XRS/5 in NC was also on and some of the reported captures show some good hits on him-he was on 74.5485, one Hz below me. Bob _____ From: hvanesce@comcast.net To: rsgb_lf_group@blacksheep.org Date: Sun, 13 Oct 2013 00:56:15 -0500 Subject: LF: RE: 74.5495 will spark-up at 2200 for the evening... Bob, Nice signal! I watched Hartmut's grabber tonight (thank you for the dropbox Hartmut); it was quite interesting to watch the day to night dynamics, especially between 2300 and 0300. Your signal seems to appear shortly after 2330; did you switch on at around 2200? Regards, Jim From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Bob Raide Sent: Saturday, October 12, 2013 2:10 PM To: rsgb_lf_group@blacksheep.org Subject: LF: 74.5495 will spark-up at 2200 for the evening... WG2XRS/4 NY with plans changed so that will be on till 0600+ with QRSS 60-hopefully with company, /3& /5. ------=_NextPart_000_0590_01CEC879.11FF5FF0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Bob,

 

Tonight I’ve been estimating your SNR* at 15-minute intervals = and comparing to your SNRs from last night. For the large majority of = the 15-minute intervals your SNRs were higher tonight, and for the = intervals in which your SNRs were higher tonight, the average difference = appears to be almost 3dB.

 

   * (estimated from traces on Hartmut’s grabber; = much appreciated Hartmut)

 

I’m also checking databases of daily solar and ionospheric = conditions, for parameters that could help to refine a model based on = the data that you and the RX stations are generating. =

 

Thanks in part to your earlier start times, it may be possible to = start making and refining some rough predictions of link availability = (hours per day) vs distance vs season, for the existing equipment, and a = means for you to extrapolate those results for any anticipated mods that = you might anticipate.    

 

Are Dex and John on tonight? At 74548.5 and 74547.5? I’ve been = looking at signals near those two frequencies the past two evenings, and = if Dex is on tonight, his SNR at Hartmut’s QTH dropped while yours = rose, which would useful information for a model. =  

 

The data that’s being generated is very valuable owing to path = diversity from multiple grabbers, cultural noise management at the = grabbers (lots of low-QRM intervals), the long collection intervals = (allows incorporation of terminator effects and better estimates of = mid-day/night attenuation span for integration with parametric models), = and the long paths provided by great TX and RX work and coordination = between TX and RX. It’s a pleasure to be able to view data of this = quality.

 

By next weekend I will have some plots, the first piece of a = propagation model and reference documentation for the model that = I’d like to pass along if anyone’s interested. Could I send = them to you? If after looking at them you think anyone would be = interested, perhaps you know of a place to post = them.

 

Nice work everyone,

 

Regards,

 

Jim

AA5BW

 

 

 

 

 

From:= = owner-rsgb_lf_group@blacksheep.org = [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Bob = Raide
Sent: Sunday, October 13, 2013 3:58 PM
To: = rsgb_lf_group@blacksheep.org
Subject: RE: LF: RE: 74.5495 will = spark-up at 2200 for the evening...

 

Markus;
I see the solid = three letters on 74.5495 and some traces on .5485 that would be = Dex, X/5 in N.C.
Will be on starting around just after 2200 for the = evening-thanks, and congrats on the successful OPDS decodes of last = night!
Bob
 

From: markusvester@aol.com
To: rsgb_lf_group@blacksheep.org=
Date: Sun, 13 Oct 2013 22:37:02 +0200
Subject: Re: LF: RE: = 74.5495 will spark-up at 2200 for the = evening...

Hi Bob, = all,

=

 

=

yesterday I = made up a simple receive diplexer, so that I could monitor = 74.55 kHz between my own LF Opera-32 transmissions. Static = levels were quite low, and I was lucky enough to capture a "4 = XR" fragment between 1:00 and 1:40 = UT:

=

 

=

74 kHz = grabber will be online again tonight:

= =

 

=

Best = 73,

=

Markus =

=

 

=

(DF6NM in = Nuernberg, JN59NJ)

=

 <= /o:p>

From:= = Bob = Raide

Sent:= = Sunday, October 13, 2013 2:50 PM

Subject: RE: LF: = RE: 74.5495 will spark-up at 2200 for the = evening...

 

=

Jim;
Yes, I fired up at = a couple minutes after 2200.  Was still full light out = here.  Temp hit 80 yesterday and was still 60 at midnight.  I = saw Hartmut's grabber very impressive.
Dex, WG2XRS/5 in NC was = also on and some of the reported captures show some good hits on = him-he was on 74.5485, one Hz below = me.
Bob
 

From: hvanesce@comcast.net
To: rsgb_lf_group@blacksheep.org=
Date: Sun, 13 Oct 2013 00:56:15 -0500
Subject: LF: RE: = 74.5495 will spark-up at 2200 for the evening...

Bob,

 

=

Nice signal! I watched Hartmut’s grabber tonight (thank you for = the dropbox Hartmut); it was quite interesting to watch the day to night = dynamics, especially between 2300 and 0300. Your signal seems to appear = shortly after 2330; did you switch on at around 2200?

 

=

Regards,

 

=

Jim  

 

=

 

=

From:= = owner-rsgb_lf_group@bl= acksheep.org [mailto:owner-rsgb_lf_g= roup@blacksheep.org] On Behalf Of Bob Raide
Sent: = Saturday, October 12, 2013 2:10 PM
To: rsgb_lf_group@blacksheep.org=
Subject: LF: 74.5495 will spark-up at 2200 for the = evening...

=

 

=

WG2XRS/4 NY with plans = changed so that will be on till 0600+ with QRSS 60-hopefully with = company, /3& /5.

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