Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by klubnl.pl (8.14.4/8.14.4/Debian-8+deb8u2) with ESMTP id w1QEJq5b001946 for ; Mon, 26 Feb 2018 15:19:55 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1eqJYt-0002HL-T8 for rs_out_1@blacksheep.org; Mon, 26 Feb 2018 14:15:27 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1eqJYt-0002HC-6l for rsgb_lf_group@blacksheep.org; Mon, 26 Feb 2018 14:15:27 +0000 Received: from resqmta-ch2-02v.sys.comcast.net ([2001:558:fe21:29:69:252:207:34]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1eqJYo-0004PC-O2 for rsgb_lf_group@blacksheep.org; Mon, 26 Feb 2018 14:15:25 +0000 Received: from resomta-ch2-14v.sys.comcast.net ([69.252.207.110]) by resqmta-ch2-02v.sys.comcast.net with ESMTP id qJYKeZZYsCumZqJYkeoqRq; Mon, 26 Feb 2018 14:15:18 +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=1519654518; bh=TyAfswXssoiScgI0qziFtlT8hesznv0Y0OjlOLbHs7w=; h=Received:Received:From:To:Subject:Date:Message-ID:MIME-Version: Content-Type; b=Fnq9WLY5bMtAl6qNRMsK6owSMTJ+ntBdQF5bgxAcA5VkVFKDc53MHbhzEk45GKgft cH7PzIbhhSPWZyZrUcaG4ZYc7TRP2ZdiTd8GFsbGhDR6Q/HaTT2VH4DlAPNebWq+Zw 4Ul5wZOYI8kGwp7QvI5R1yDl/gvASQCByj9xcKc63WT1bzPU6ZlEZbuj1FnqVfHO4w +GruQ+rxX1b8mUI7UzJTZ7clUMauCospFwiUKs/aOMB9YcYhZOlw/HU6EINiKXLElH NCfJSWWtUwU9Y4g6NwClAhL2LhI61Yi1+X2dVAFiaB61HRha0rtKT4zUj+mjuijOxY KagP9LKiS9wag== Received: from Owner ([IPv6:2601:140:8500:7f9f:1d54:4759:866d:8868]) by resomta-ch2-14v.sys.comcast.net with SMTP id qJYjeHjGI0T0eqJYkeAdb6; Mon, 26 Feb 2018 14:15:18 +0000 From: To: References: <1UQOBAX9Wi.5GpBpi86BpG@optiplex980-pc> <161ce6c803f-1564-19878@webjas-vab234.srv.aolmail.net> <024d01d3aeb2$52a23450$f7e69cf0$@comcast.net> <5A93F0AF.7040503@posteo.de> In-Reply-To: <5A93F0AF.7040503@posteo.de> Date: Mon, 26 Feb 2018 09:15:06 -0500 Message-ID: <028501d3af0c$34211cd0$9c635670$@comcast.net> MIME-Version: 1.0 X-Mailer: Microsoft Outlook 14.0 Thread-Index: AQGJUPGurxrzyVsVpVFmOZopamlKCwJrEajWAV+VZk8CgZfyN6QY/Ggg Content-Language: en-us X-CMAE-Envelope: MS4wfIH5GctGCW7pNp30wB+W9oO47+ysSVx8sT4uxh2bzk4CknPudNMfbrSW/4iCx5XmYzqZ/6x7SQF6FVo90vaUHdK6W27sg+TdzrmOpHqdCMT/Mea74Sjh 6SOmrAQHBRAv1xKtiNTCK+VjrkEDrcmvWyo= X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Stefan, Thank you for the reminder. All of the permeable-core selection/placement and winding improvements come to mind when you mention that number. Correcting the sentence below: “(ERP ratio 16dB)…offset a nominal E-W/W-E attenuation ratio (9 dB EW/WE ratio for 6Mm path) by 7dB. [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (hvanesce[at]comcast.net) 0.0 T_KAM_HTML_FONT_INVALID BODY: Test for Invalidly Named or Formatted Colors in HTML 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: 7fd152b460e4fe836d66f0293f680039 Subject: RE: LF: VLF DK7FC > W1VD 8.27 kHz EbNaut more success! Content-Type: multipart/alternative; boundary="----=_NextPart_000_0286_01D3AEE2.4B4D5EC0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.5 required=5.0 tests=HTML_50_60,HTML_MESSAGE, NO_REAL_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 This is a multipart message in MIME format. ------=_NextPart_000_0286_01D3AEE2.4B4D5EC0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Stefan, =20 Thank you for the reminder. All of the permeable-core = selection/placement and winding improvements come to mind when you = mention that number.=20 =20 Correcting the sentence below: =E2=80=9C(ERP ratio 16dB)=E2=80=A6offset = a nominal E-W/W-E attenuation ratio (9 dB EW/WE ratio for 6Mm path) by = 7dB. =20 Excellent ERP, and glad that Markus pointed out the quantitative = consistency of same-month E-W and W-E link results with non-reciprocity = at 8270 Hz. =20 73, =20 Jim AA5BW=20 =20 =20 =20 From: owner-rsgb_lf_group@blacksheep.org = [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of DK7FC Sent: Monday, February 26, 2018 6:34 AM To: rsgb_lf_group@blacksheep.org Subject: Re: LF: VLF DK7FC > W1VD 8.27 kHz EbNaut more success! =20 Thanks Jim, ERP is 400 uW. Often discussed but my statement here :-) 73, Stefan Am 26.02.2018 04:31, schrieb hvanesce@comcast.net:=20 Congratulations Jay and Stefan, and thanks Markus for the perspectives = and reference points. I have a rough recollection of Stefan=E2=80=99s = estimated ERP, which would seem to slightly more than offset a nominal = E-W/W-E attenuation ratio, making Markus=E2=80=99 two propagation = observations particularly interesting, as is the Forest question. =20 Fine work Stefan and Jay. =20 73, =20 Jim AA5BW =20 =20 From: owner-rsgb_lf_group@blacksheep.org = [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Markus Vester Sent: Sunday, February 25, 2018 2:25 PM To: rsgb_lf_group@blacksheep.org Subject: Re: LF: VLF DK7FC > W1VD 8.27 kHz EbNaut more success! =20 Hi Jay, Stefan,=20 really good work, truly amazing!=20 Noticing that Stefan hadn't sent another repeat last night 24/25th, I = wondered whether the experiment might have already been concluded = successfully - yes it had ;-) Considering that Joe has been making the TA W-E path with only 10 uW, in = retrospective it seems not so surprising that Stefan's much stronger = signal managed to overcome the E-W nonreciprocity. On the other hand, = when Uwe had sent a very long carrier in March 2014, no conclusive trace = was ever detected in Virginia. Now I wonder whether Stefan's recent = transmission has also been picked up in Forest? All the best, Markus (DF6NM) =20 -----Urspr=C3=BCngliche Mitteilung-----=20 Von: jrusgrove An: (rsgb_lf_group@blacksheep.org) Verschickt: So, 25. Feb 2018 19:26 Betreff: LF: VLF DK7FC > W1VD 8.27 kHz EbNaut more success! Stefans transmission: =20 f =3D 8270.1000 Hz Start time: 19.FEB.2018 22:30:00 UTC (daily) Symbol period: 30 s Characters: 2 CRC bits: 22 Coding 16K21A Duration: 07:12 [hh:mm] Antenna current: 700 mA =20 After a successful one character reception earlier in the week, we can = now report the successful reception of a 2 character message. Stacking = of 3 transmissions was required (0221, 0222 and 0223). There is also a = 0224 file but it has timing issues and may or may not be usable.=20 =20 ebnaut-rx V0.8 input file C:\EbNaut\DK7FC\sum212223.wav sample rate 0.457240 per second rx frequency 8270 file start time 2018-02-22 22:21:17.790 polynomial 16K21A crc size 22 number of chars 2 block size 34 symbol period 30.000 number of symbols 864 start offset 537.000 freq offset 0.100000 cores 2 list length 500000 skipped 538.011261 seconds to start initial reference phase 30.6 --------------------------------------------- found DX list rank 48426 reference phase 150,150,150,150 carrier S/N 11.04 dB in 38.6 uHz, -33.10 dB in 1Hz, -67.08 dB in 2.5kHz carrier Es/N0 -18.33 dB carrier Eb/N0 0.47 dB info bit period 2273.68 seconds symbol error rate 373/864 =3D 43.171 % Es/N0 from symbol errors -18.2 dB Eb/N0 from symbol errors 0.6 dB Shannon capacity 2.5 bits/hour Shannon efficiency 62.7 % symbols file C:\EbNaut\DK7FC\sum212223-symbols.csv elapsed 52 seconds --------------------------------------------- found DX list rank 17074 reference phase 120,150,120,150 carrier S/N 11.19 dB in 38.6 uHz, -32.94 dB in 1Hz, -66.92 dB in 2.5kHz carrier Es/N0 -18.17 dB carrier Eb/N0 0.62 dB info bit period 2273.68 seconds symbol error rate 374/864 =3D 43.287 % Es/N0 from symbol errors -18.4 dB Eb/N0 from symbol errors 0.4 dB Shannon capacity 2.6 bits/hour Shannon efficiency 60.5 % symbols file C:\EbNaut\DK7FC\sum212223-symbols.csv elapsed 383 seconds Jay W1VD WD2XNS WE2XGR/2 =20 =20 =20 =20 ------=_NextPart_000_0286_01D3AEE2.4B4D5EC0 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable

Stefan,

 

Thank you for the reminder. All of the permeable-core = selection/placement and winding improvements come to mind when you = mention that number.

 

Correcting the sentence below: =E2=80=9C(ERP ratio = 16dB)=E2=80=A6offset a nominal E-W/W-E attenuation ratio (9 dB EW/WE ratio for 6Mm = path) by 7dB.

 

Excellent ERP, and glad that Markus pointed out the quantitative = consistency of same-month E-W and W-E link results with non-reciprocity = at 8270 Hz.

 

73,

 

Jim AA5BW

 

=C2=A0=C2=A0=C2=A0=C2=A0

 

From: owner-rsgb_lf_group@blacksheep.org = [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of = DK7FC
Sent: Monday, February 26, 2018 6:34 = AM
To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: = VLF DK7FC > W1VD 8.27 kHz EbNaut more = success!

 

Thanks = Jim,

ERP is 400 uW. Often discussed but my statement here = :-)

73, Stefan

Am 26.02.2018 04:31, schrieb hvanesce@comcast.net: =

Congratulations Jay and Stefan, and thanks Markus for the = perspectives and reference points. I have a rough recollection of = Stefan=E2=80=99s estimated ERP, which would seem to slightly more than = offset a nominal E-W/W-E attenuation ratio, making Markus=E2=80=99 two = propagation observations particularly interesting, as is the Forest = question.

 

Fine work Stefan and Jay.

 

73,

 

Jim AA5BW   

 

From:= = owner-rsgb_lf_group@bl= acksheep.org [mailto:owner-rsgb_lf_g= roup@blacksheep.org] On Behalf Of Markus = Vester
Sent: Sunday, February 25, 2018 2:25 PM
To: = rsgb_lf_group@blacksheep.org=
Subject: Re: LF: VLF DK7FC > W1VD 8.27 kHz EbNaut more = success!

 

Hi Jay, = Stefan,

really good work, truly amazing!

Noticing that = Stefan hadn't sent another repeat last = night 24/25th, I wondered whether the experiment might = have already been concluded successfully - yes it had = ;-)

Considering that Joe has been making the TA W-E = path with only 10 uW, in retrospective it seems not so surprising = that Stefan's much stronger signal managed to overcome the = E-W nonreciprocity. On the other hand, when Uwe had sent = a very long carrier in March 2014, no conclusive trace was = ever detected in Virginia. Now I wonder whether Stefan's = recent transmission has also been picked up in Forest?

All the = best,
Markus (DF6NM)  


-----Urspr=C3=BCngliche = Mitteilung-----
Von: jrusgrove <jrusgrove@comcast.net>
An= : (rsgb_lf_group@blacksheep.org= ) <rsgb_lf_group@blacksheep.org= >
Verschickt: So, 25. Feb 2018 19:26
Betreff: LF: VLF DK7FC = > W1VD 8.27 kHz EbNaut more = success!


Stefans = transmission:

 =

f =3D = 8270.1000 Hz
<= span style=3D'font-family:"Arial","sans-serif"'>Start time: = 19.FEB.2018  22:30:00 UTC (daily)
Symbol period: 30 = s
Characters: = 2
CRC bits: = 22
Coding = 16K21A
Duration: 07:12 = [hh:mm]
Antenna current: 700 = mA

 =

After a = successful one character reception earlier in the week, we can now = report the successful reception of a 2 character message. Stacking = of 3  transmissions was required (0221, 0222 and = 0223). There is also a 0224 file but it has timing issues = and may or may not be usable.

 =

ebnaut-rx = V0.8
input file C:\EbNaut\DK7FC\sum212223.wav
sample rate 0.457240 = per second
rx frequency 8270
file start time 2018-02-22 = 22:21:17.790
polynomial 16K21A
crc size 22
number of chars = 2
block size 34
symbol period 30.000
number of symbols = 864
start offset 537.000
freq offset 0.100000
cores 2
list = length 500000
skipped 538.011261 seconds to start
initial = reference phase = 30.6
---------------------------------------------
found = DX
list rank 48426
reference phase 150,150,150,150
carrier S/N = 11.04 dB in 38.6 uHz, -33.10 dB in 1Hz, -67.08 dB in 2.5kHz
carrier = Es/N0 -18.33 dB
carrier Eb/N0 0.47 dB
info bit period 2273.68 = seconds
symbol error rate 373/864 =3D 43.171 %
Es/N0 from symbol = errors -18.2 dB
Eb/N0 from symbol errors 0.6 dB
Shannon capacity = 2.5 bits/hour
Shannon efficiency 62.7 %
symbols file = C:\EbNaut\DK7FC\sum212223-symbols.csv
elapsed 52 = seconds
---------------------------------------------
found = DX
list rank 17074
reference phase 120,150,120,150
carrier S/N = 11.19 dB in 38.6 uHz, -32.94 dB in 1Hz, -66.92 dB in 2.5kHz
carrier = Es/N0 -18.17 dB
carrier Eb/N0 0.62 dB
info bit period 2273.68 = seconds
symbol error rate 374/864 =3D 43.287 %
Es/N0 from symbol = errors -18.4 dB
Eb/N0 from symbol errors 0.4 dB
Shannon capacity = 2.6 bits/hour
Shannon efficiency 60.5 %
symbols file = C:\EbNaut\DK7FC\sum212223-symbols.csv
elapsed 383 = seconds

Jay = W1VD  WD2XNS  WE2XGR/2

 =

 =

 =

 =

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