Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, RCVD_IN_DNSWL_MED,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 X-Spam-DCC: : mailn 1480; Body=3 Fuz1=3 Fuz2=3 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 v3MI90TT002095 for ; Sat, 22 Apr 2017 20:09:02 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1d1zNz-0004qi-UW for rs_out_1@blacksheep.org; Sat, 22 Apr 2017 19:03:55 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1d1zNy-0004qZ-NH for rsgb_lf_group@blacksheep.org; Sat, 22 Apr 2017 19:03:54 +0100 Received: from lethe.lipkowski.org ([178.32.151.135] helo=lipkowski.org) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1d1zNu-0004ew-BP for rsgb_lf_group@blacksheep.org; Sat, 22 Apr 2017 19:03:53 +0100 Received: from mailn.lipkowski.org (localhost [127.0.0.1]) by lipkowski.org (8.14.4/8.14.4/Debian-8+deb8u1) with ESMTP id v3MI3f1v002090 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Sat, 22 Apr 2017 20:03:42 +0200 Received: from localhost (sq5bpf@localhost) by mailn.lipkowski.org (8.14.4/8.14.4/Submit) with ESMTP id v3MI3fvl002086 for ; Sat, 22 Apr 2017 20:03:41 +0200 X-Authentication-Warning: mailn.lipkowski.org: sq5bpf owned process doing -bs Date: Sat, 22 Apr 2017 20:03:41 +0200 (CEST) From: Jacek Lipkowski To: rsgb_lf_group@blacksheep.org In-Reply-To: <58FA8D52.4090006@posteo.de> Message-ID: References: <58F87918.7050808@posteo.de> <1492790825.443602583@f107.i.mail.ru> <58FA8D52.4090006@posteo.de> User-Agent: Alpine 2.11 (DEB 23 2013-08-11) MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.75 X-Scanned-By: MIMEDefang 2.75 on 10.1.3.10 X-Scan-Signature: 8784cdbd504ef8804d6bf58c55c77386 Subject: Re: LF: Re[2]: VLF: New carrier on 6470.005 Hz Content-Type: MULTIPART/MIXED; BOUNDARY="17435139-849179751-1492884221=:8128" 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: 11430 This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --17435139-849179751-1492884221=:8128 Content-Type: TEXT/PLAIN; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8BIT Received the 20170422 6470.1Hz transmission (message sent off-list to Stefan for confirmation). prep [ 0 0 0 0 0] found rank 0 ber 4.0039e-01 Eb/N0 4.6 M -1.306843281e+00 [xx] ps [ 0 0 0 0 0] carrier phase: -15.0 carrier Eb/N0: 4.0 carrier S/N: 14.56 dB in 24.4 uHz elapsed 36 VY 73 Jacek / SQ5BPF On Sat, 22 Apr 2017, DK7FC wrote: > Date: Sat, 22 Apr 2017 00:53:06 +0200 > From: DK7FC > Reply-To: rsgb_lf_group@blacksheep.org > To: rsgb_lf_group@blacksheep.org > Subject: Re: LF: Re[2]: VLF: New carrier on 6470.005 Hz > > Hi Alex and Eddie, > > Unfortunately the messages are not correct. With just 2 characters it is hard to decide if the message makes > sense. We seem to be very close (beyond) the limit. > But hey we are far from doing trivial things, and it was one of the first attempts. So let's just try a few > more. > Your 47 uHz spectrograms show some encouraging traces. > Alex i can see on your 47 uHz spectrogram that the QRN is now rising. That makes it even harder. But the days > become shorter again in just 2 months! ;-) > >From Paul's measurements it looks like the band preferrs day time transmissions, at least in a range below > 1000 km. Maybe this could even work on the way to Moscow? > > I should try a long transmission of a short message during daytime: > > f = 6470.100000 Hz > Start time: 22.Apr.2017   07:00:00 UTC > Symbol period: 40 s > Characters: 2 > CRC bits: 32 > Coding 16K21A > Duration: 11h, 22m, 40s > Antenna current: 460 mA > > > 73, Stefan > > > > Am 21.04.2017 18:07, schrieb Alex K: > Hello VLF, Stefan! > My "list of (false?) decodes": > ebnaut-rx V0.5 > input file C:\TEMP\ebnaut20_APR_0123_6470-1pps.wav > sample rate 0.342935 per second > rx frequency 6470.1 > file start time 2017-04-19 18:45:28.390 > polynomial 16K21A > crc size 20 > number of chars 2 > block size 32 > symbol period 30.000 > number of symbols 832 > list length 2000000 > start offset 883.574 > freq offset 0.000009 > cores 3 > skipped 883.549361 seconds to start > initial reference phase 32.7 > --------------------------------------------- > found NC > list rank 418701 > reference phase    0    0    0    0 > carrier RMS 4.857e-005 noise RMS 1.716e-005 > carrier S/N 9.03 dB in 40.1 uHz > carrier Es/N0 -20.17 dB > carrier Eb/N0 -1.53 dB > info bit period 2189.47 seconds > symbol error rate 366/832 = 43.990 % > Es/N0 from symbol errors -19.4 dB > Eb/N0 from symbol errors -0.8 dB > Shannon capacity 1.7 bits/hour > Shannon efficiency 99.2 % > symbols file C:\TEMP\ebnaut20_APR_0123_6470-1pps-symbols.csv > elapsed 11 seconds > --------------------------------------------- > found WH > list rank 452770 > reference phase  180  180  180  180 > carrier RMS 5.105e-005 noise RMS 1.716e-005 > carrier S/N 9.47 dB in 40.1 uHz > carrier Es/N0 -19.73 dB > carrier Eb/N0 -1.10 dB > info bit period 2189.47 seconds > symbol error rate 370/832 = 44.471 % > Es/N0 from symbol errors -20.0 dB > Eb/N0 from symbol errors -1.4 dB > Shannon capacity 1.8 bits/hour > Shannon efficiency 89.8 % > symbols file C:\TEMP\ebnaut20_APR_0123_6470-1pps-symbols.csv > elapsed 21 seconds > --------------------------------------------- > found BE > list rank 219161 > reference phase   60   60   60   60 > carrier RMS 5.119e-005 noise RMS 1.716e-005 > carrier S/N 9.49 dB in 40.1 uHz > carrier Es/N0 -19.71 dB > carrier Eb/N0 -1.08 dB > info bit period 2189.47 seconds > symbol error rate 373/832 = 44.832 % > Es/N0 from symbol errors -20.0 dB > Eb/N0 from symbol errors -1.4 dB > Shannon capacity 1.8 bits/hour > Shannon efficiency 89.3 % > symbols file C:\TEMP\ebnaut20_APR_0123_6470-1pps-symbols.csv > elapsed 65 seconds > --------------------------------------------- > found V- > list rank 232072 > reference phase   30   30    0    0 > carrier RMS 5.150e-005 noise RMS 1.716e-005 > carrier S/N 9.54 dB in 40.1 uHz > carrier Es/N0 -19.66 dB > carrier Eb/N0 -1.02 dB > info bit period 2189.47 seconds > symbol error rate 374/832 = 44.952 % > Es/N0 from symbol errors -20.0 dB > Eb/N0 from symbol errors -1.4 dB > Shannon capacity 1.9 bits/hour > Shannon efficiency 88.2 % > symbols file C:\TEMP\ebnaut20_APR_0123_6470-1pps-symbols.csv > elapsed 113 seconds > --------------------------------------------- > found WH > list rank 200539 > reference phase -150 -150  180  180 > carrier RMS 5.386e-005 noise RMS 1.716e-005 > carrier S/N 9.93 dB in 40.1 uHz > carrier Es/N0 -19.27 dB > carrier Eb/N0 -0.64 dB > info bit period 2189.47 seconds > symbol error rate 366/832 = 43.990 % > Es/N0 from symbol errors -19.4 dB > Eb/N0 from symbol errors -0.8 dB > Shannon capacity 2.0 bits/hour > Shannon efficiency 80.7 % > symbols file C:\TEMP\ebnaut20_APR_0123_6470-1pps-symbols.csv > elapsed 121 seconds > --------------------------------------------- > found BE > list rank 114596 > reference phase   60   60   30   30 > carrier RMS 5.345e-005 noise RMS 1.716e-005 > carrier S/N 9.87 dB in 40.1 uHz > carrier Es/N0 -19.33 dB > carrier Eb/N0 -0.70 dB > info bit period 2189.47 seconds > symbol error rate 361/832 = 43.389 % > Es/N0 from symbol errors -18.5 dB > Eb/N0 from symbol errors 0.1 dB > Shannon capacity 2.0 bits/hour > Shannon efficiency 82.0 % > symbols file C:\TEMP\ebnaut20_APR_0123_6470-1pps-symbols.csv > elapsed 127 seconds > --------------------------------------------- > found WH > list rank 106975 > reference phase  180 -150  180 -150 > carrier RMS 5.378e-005 noise RMS 1.716e-005 > carrier S/N 9.92 dB in 40.1 uHz > carrier Es/N0 -19.28 dB > carrier Eb/N0 -0.65 dB > info bit period 2189.47 seconds > symbol error rate 368/832 = 44.231 % > Es/N0 from symbol errors -19.7 dB > Eb/N0 from symbol errors -1.1 dB > Shannon capacity 2.0 bits/hour > Shannon efficiency 80.9 % > symbols file C:\TEMP\ebnaut20_APR_0123_6470-1pps-symbols.csv > elapsed 470 seconds > --------------------------------------------- > found WH > list rank 137768 > reference phase  180 -150  150  180 > carrier RMS 5.485e-005 noise RMS 1.716e-005 > carrier S/N 10.09 dB in 40.1 uHz > carrier Es/N0 -19.11 dB > carrier Eb/N0 -0.48 dB > info bit period 2189.47 seconds > symbol error rate 372/832 = 44.712 % > Es/N0 from symbol errors -20.0 dB > Eb/N0 from symbol errors -1.4 dB > Shannon capacity 2.1 bits/hour > Shannon efficiency 77.9 % > symbols file C:\TEMP\ebnaut20_APR_0123_6470-1pps-symbols.csv > elapsed 558 seconds > > I like "decode" BE: "to be or not to be that is the question"  :-) > > Files for reprocessing are here: http://rn3aus.narod.ru/ebnaut20_APR_0123.zip  > Also I have screenshots  21 uHz and 47 uHz 6470.005 > 73 de rn3aus > > > ???????, 21 ?????? 2017, 10:28 +03:00 ?? g3zjo : > > On 20/04/2017 10:02, DK7FC wrote: > > Last night i run another message: > > f = 6470.100000 Hz > Start time: 19.Apr.2017   19:00:00 UTC > Symbol period: 30 s > Characters: 2 > CRC bits: 20 > Coding 16K21A > Duration: 6h, 56m > Antenna current: 460 mA > > This is a chance for G3ZJO and RN3AUS and SQ5BPF. I generated EbNaut RX > files from the tree, the message decoded without a single bit error. > > > Here are my complete results, just in case it contains any useful information. No > decodes at all with with List Length 20000, I assume all falsies with 200000. The > signal has been pretty poor in the last carrier transmission so I wasn't too hopeful.. > > Incidentally I noticed in SpecLab that the clock on Button 3 of my Ebnaut instance was > stopped at 10:26  UTC (and probably the waterfall scroll too) yet it is still spewing > out files for EbNaut. There must be a clue there somewhere. Win7 dual core processor, > Hat 6 7/8, Shoe 9 UK, 44 EU. > > ebnaut-rx V0.6 > input file C:\Comms\EbNaut\20_APR_0121_6470.wav > sample rate 0.342935 per second > rx frequency 8270.1 > file start time 2017-04-19 18:43:06.270 > polynomial 16K21A > crc size 20 > number of chars 2 > block size 32 > symbol period 30.000 > number of symbols 832 > list length 200000 > start offset 1025.293 > freq offset 0.000000 > cores 2 > skipped 1026.434179 seconds to start > initial reference phase 74.7 > --------------------------------------------- > found 89 > list rank 144418 > reference phase   60   60   60   60 > carrier RMS 2.861e-005 noise RMS 9.431e-006 > carrier S/N 9.64 dB in 40.1 uHz > carrier Es/N0 -19.56 dB > carrier Eb/N0 -0.93 dB > info bit period 2189.47 seconds > symbol error rate 374/832 = 44.952 % > Es/N0 from symbol errors -20.0 dB > Eb/N0 from symbol errors -1.4 dB > Shannon capacity 1.9 bits/hour > Shannon efficiency 86.3 % > symbols file C:\Comms\EbNaut\20_APR_0121_6470-symbols.csv > elapsed 44 seconds > --------------------------------------------- > found 89 > list rank 104145 > reference phase   60   30   60   30 > carrier RMS 2.962e-005 noise RMS 9.431e-006 > carrier S/N 9.94 dB in 40.1 uHz > carrier Es/N0 -19.26 dB > carrier Eb/N0 -0.63 dB > info bit period 2189.47 seconds > symbol error rate 369/832 = 44.351 % > Es/N0 from symbol errors -19.9 dB > Eb/N0 from symbol errors -1.3 dB > Shannon capacity 2.0 bits/hour > Shannon efficiency 80.6 % > symbols file C:\Comms\EbNaut\20_APR_0121_6470-symbols.csv > elapsed 229 seconds > --------------------------------------------- > found 2@ > list rank 49804 > reference phase  180  150  180  150 > carrier RMS 2.952e-005 noise RMS 9.431e-006 > carrier S/N 9.91 dB in 40.1 uHz > carrier Es/N0 -19.29 dB > carrier Eb/N0 -0.66 dB > info bit period 2189.47 seconds > symbol error rate 359/832 = 43.149 % > Es/N0 from symbol errors -18.2 dB > Eb/N0 from symbol errors 0.4 dB > Shannon capacity 2.0 bits/hour > Shannon efficiency 81.1 % > symbols file C:\Comms\EbNaut\20_APR_0121_6470-symbols.csv > elapsed 245 seconds > --------------------------------------------- > found 2@ > list rank 32051 > reference phase  180  150 -150  180 > carrier RMS 3.064e-005 noise RMS 9.431e-006 > carrier S/N 10.24 dB in 40.1 uHz > carrier Es/N0 -18.97 dB > carrier Eb/N0 -0.33 dB > info bit period 2189.47 seconds > symbol error rate 359/832 = 43.149 % > Es/N0 from symbol errors -18.2 dB > Eb/N0 from symbol errors 0.4 dB > Shannon capacity 2.2 bits/hour > Shannon efficiency 75.3 % > symbols file C:\Comms\EbNaut\20_APR_0121_6470-symbols.csv > elapsed 370 seconds > > 73 Eddie G3ZJO > > > > --17435139-849179751-1492884221=:8128--