Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-0.7 required=5.0 tests=FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,HTML_MESSAGE,RCVD_IN_DNSWL_MED, SPF_PASS,SUBJ_ALL_CAPS,T_DKIM_INVALID autolearn=ham autolearn_force=no version=3.4.0 X-Spam-DCC: INFN-TO: mailn 1233; Body=2 Fuz1=2 Fuz2=2 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by lipkowski.org (8.14.4/8.14.4/Debian-8+deb8u1) with ESMTP id v49FF4ps000894 for ; Tue, 9 May 2017 17:15:05 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1d86lM-0006JF-Gb for rs_out_1@blacksheep.org; Tue, 09 May 2017 16:09:20 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1d86lL-0006J6-FT for rsgb_lf_group@blacksheep.org; Tue, 09 May 2017 16:09:19 +0100 Received: from resqmta-ch2-08v.sys.comcast.net ([2001:558:fe21:29:69:252:207:40]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1d86lH-0005e8-Du for rsgb_lf_group@blacksheep.org; Tue, 09 May 2017 16:09:18 +0100 Received: from resomta-ch2-09v.sys.comcast.net ([69.252.207.105]) by resqmta-ch2-08v.sys.comcast.net with SMTP id 86l1dFlnrAfZs86lCdQg6L; Tue, 09 May 2017 15:09:10 +0000 X-DKIM-Result: Domain=comcast.net Result=Signature OK DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=comcast.net; s=q20161114; t=1494342550; bh=fby90hEUnLpQPRxEKKK49+egbL3/amDkIm4d9RTQDlY=; h=Received:Received:From:To:Subject:Date:Message-ID:MIME-Version: Content-Type; b=TG8roG8eFAqHQf2rzVAZJUzuIh7BZXjLudlHrTYtYG2ocQ3hDxcxu4iiNuBApcKPw 8/YDi3IfOU0VTl+hrWnj+VQIQNeGCiY+3G26fBG6ShE7HY7/z/slPCo3X3FQAdmf+a x/tqlFaXKv0Qx1Qh838bgBhCizSSjh1ZGBFW5TVVtoixBn9sy+jf8XoayCpMo3k+u3 /0YUk/J79OsD/7rZy9CXmzDW7rH4TE85mydI8hxKHfSdy7MXdAiFAuqh7OAe+kTows H9zSB4XcR0vqKddGodwByfnkhFPEDlCKClZFLGxxWGZ3jxIE8OvHWbi1E1bZ58Xutu 1iDqKQKVyO0dQ== Received: from Owner ([IPv6:2601:140:8500:7f9f:fdff:bb6a:7fb9:9256]) by resomta-ch2-09v.sys.comcast.net with SMTP id 86lBdo4uVjCS086lBd1bqh; Tue, 09 May 2017 15:09:10 +0000 From: To: References: <15be9e1c15d-769c-30ec4@webprd-a45.mail.aol.com> In-Reply-To: <15be9e1c15d-769c-30ec4@webprd-a45.mail.aol.com> Date: Tue, 9 May 2017 11:09:06 -0400 Message-ID: <038601d2c8d6$346ab290$9d4017b0$@comcast.net> MIME-Version: 1.0 X-Mailer: Microsoft Outlook 14.0 Thread-Index: AQHglHABCzHt5R8+yfcuunCHsKj6g6HQfh1Q Content-Language: en-us X-CMAE-Envelope: MS4wfHs0UTZ3OFYd4PeBbX7BFRs7htyytleqgc2jtGUjBN0G4HNlzapKFa08tBNielZAnls4BTmp8JEoHGpgJMJMqtmf8H2Gv0zSbmBUec4TT3l8ZEcdOoLH ilwEMArFb0axjFfVSLHRGQJAPNZHhdbYjEI= X-Scan-Signature: 6ae5fe68d6708d1e4a9cbdf0f0af43e5 Subject: RE: LF: NA VLF Content-Type: multipart/alternative; boundary="----=_NextPart_000_0387_01D2C8B4.AD591290" 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-Scanned-By: MIMEDefang 2.75 Status: RO X-Status: X-Keywords: X-UID: 11648 This is a multipart message in MIME format. ------=_NextPart_000_0387_01D2C8B4.AD591290 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Congratulations! Echoing Markus=E2=80=99 sentiment: Joe's first long = transmission (10uW!) immediately detected TA; very impressive work Joe = and Paul; thanks to Mike for confirmation, and great to see good = guidance from experimenters in the group. Amazing. =20 =20 From: owner-rsgb_lf_group@blacksheep.org = [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Markus Vester Sent: Monday, May 8, 2017 5:06 PM To: rsgb_lf_group@blacksheep.org Subject: Re: LF: NA VLF =20 Fantastic! Joe's first long transmission is immediately being picked up = over the ocean - what a start, at 10 uW!=20 Big congratulations to Paul and Joe, and also to Mike for confirmation = from his antenna. All the best, Markus (DF6NM) -----Urspr=C3=BCngliche Mitteilung-----=20 Von: Paul Nicholson An: rsgb_lf_group Verschickt: Mo, 8. Mai 2017 22:01 Betreff: Re: LF: NA VLF Watson-Watt calculation from the antenna amplitudes and phases of the overnight signal gives 244 degrees which is reasonable given the background noise from the south west (pulling the apparent bearing southwards from the great circle 280 deg). Without any calculation, I can see from the relative antenna phases that the signal is from the west: the E/W H-field is very obviously inverted (relative to the E-field) from its familiar polarity on European signals. Joe wrote: > The carrier was generated with an undisciplined 10 MHz DOCXO > clocking an ad9851. As Markus points out, the maths puts it > high by 92.5 uHz. Overnight signal peaks at 8270.0070625 Hz +/- 0.5 uHz. Therefore about 3.6 ppb low of the DDS nominal frequency of 8270.0070925... If I align the FT bins with that frequency, the overnight signal becomes a sharp line - http://abelian.org/vlf/tmp/170508e.gif with a respectable S/N of 13.9 dB in 46.296 uHz. I'm now confident that this little peak in the spectrum is 10uW from VO1NA. Distance is 3545 km. The signal amounts to about 2.6 electrons on the E-field probe. How's that for a signal report Joe? Also getting a bit of a signal visible at Forest, Virginia. Not a very significant peak but it has the same offset. Only visible on the overnight signal, nothing yet on the daytime. Distance to Forest is 2442 km so that's very good for a land path. http://abelian.org/vlf/tmp/170508d.gif Forest is E-field only so no rejection of the South American nighttime sferics. -- Paul Nicholson -- ------=_NextPart_000_0387_01D2C8B4.AD591290 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable

Congratulations! Echoing Markus=E2=80=99 sentiment: J= oe's first long transmission (10uW!) immediately detected TA; = very impressive work Joe and Paul; =C2=A0thanks to Mike for = confirmation, and great to see good guidance from experimenters in the = group. Amazing.

<= o:p> 

 

From:= = owner-rsgb_lf_group@blacksheep.org = [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Markus = Vester
Sent: Monday, May 8, 2017 5:06 PM
To: = rsgb_lf_group@blacksheep.org
Subject: Re: LF: NA = VLF

 

F= antastic! Joe's first long transmission is immediately being = picked up over the ocean - what a start, at 10 uW! 

Big = congratulations to Paul and Joe, and also to Mike for confirmation = from his antenna.

All the best,
Markus = (DF6NM)


-----Urspr=C3=BCngliche Mitteilung-----
Von: Paul = Nicholson <vlf0403@abelian.org>
An: = rsgb_lf_group <rsgb_lf_group@blacksheep.org= >
Verschickt: Mo, 8. Mai 2017 22:01
Betreff: Re: LF: NA = VLF

<= br>Watson-Watt calculation from the antenna amplitudes and phases
of = the overnight signal gives 244 degrees which is reasonable
given the = background noise from the south west (pulling the
apparent bearing = southwards from the great circle 280 deg).

Without any = calculation, I can see from the relative antenna
phases that the = signal is from the west: the E/W H-field is
very obviously inverted = (relative to the E-field) from its
familiar polarity on European = signals.

Joe wrote:

> The carrier was generated with an = undisciplined 10 MHz DOCXO
> clocking an ad9851. As Markus points = out, the maths puts it
> high by 92.5 uHz.

Overnight signal = peaks at 8270.0070625 Hz +/- 0.5 uHz.
Therefore about 3.6 ppb low of = the DDS nominal frequency of
8270.0070925...

If I align the FT = bins with that frequency, the overnight
signal becomes a sharp line = -

http://abelian.org/vlf/tmp/170508e.gif

with = a respectable S/N of 13.9 dB in 46.296 uHz.

I'm now confident = that this little peak in the spectrum
is 10uW from VO1NA. Distance is = 3545 km.

The signal amounts to about 2.6 electrons on the E-field = probe.
How's that for a signal report Joe?

Also getting a bit = of a signal visible at Forest, Virginia.
Not a very significant peak = but it has the same offset.
Only visible on the overnight signal, = nothing yet on the
daytime. Distance to Forest is 2442 km so that's = very good
for a land path.

http://abelian.org/vlf/tmp/170508d.gif

Fores= t is E-field only so no rejection of the South American
nighttime = sferics.

--
Paul = Nicholson
--

------=_NextPart_000_0387_01D2C8B4.AD591290--