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=FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,HTML_MESSAGE,RCVD_IN_DNSWL_MED, SPF_PASS,T_DKIM_INVALID autolearn=ham autolearn_force=no version=3.4.0 X-Spam-DCC: EATSERVER: mailn 1166; 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 v2AFklv8023913 for ; Fri, 10 Mar 2017 16:46:48 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1cmMdn-0001rx-Dt for rs_out_1@blacksheep.org; Fri, 10 Mar 2017 15:39:39 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1cmMdm-0001ro-Ub for rsgb_lf_group@blacksheep.org; Fri, 10 Mar 2017 15:39:38 +0000 Received: from mail-yw0-x22e.google.com ([2607:f8b0:4002:c05::22e]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1cmMdj-0004Qs-BS for rsgb_lf_group@blacksheep.org; Fri, 10 Mar 2017 15:39:37 +0000 Received: by mail-yw0-x22e.google.com with SMTP id o4so25963482ywd.3 for ; Fri, 10 Mar 2017 07:39:34 -0800 (PST) X-DKIM-Result: Domain=gmail.com Result=Good and Known Domain DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=d4zbxpQtUKYsVjaATJs1DNFazKtwz/RWtQ2xC2JJRxs=; b=VECUeIxmtLnq/dORN1MLpI5luwHmuQyITm0mtc/0e7VnhGJ+ltTm8haKwWBRPQh9Ya lFvHRUSYDS9+WNc149kdGLPPMjoaALXf2PMsZFLAcEvkp8DBcPEClDoAUPCpOMbTQ/Wh TH6EvzAfO0Wnx7iCamOQ7zpknzNwR9xfXG96zltajTpj5CmAQpDMtL+S5O93eIOxwMVZ bPhYtKB1JxQahqSyGeV1MUd7kC4zeAVVgWFAGaGIqiuXSK0j6LSH4Y68gVi8UpYDU7EA wTLEjqX3MjYTSbOmbg3hcYbv+yoKkpIY637hbAHRwiX+hhESEAseiYEL7OBeMpbvrehG f0zg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=d4zbxpQtUKYsVjaATJs1DNFazKtwz/RWtQ2xC2JJRxs=; b=m+UeN63ChBqUpf1i0CcBJYxXaC9QWhTZX0dJpSnAjDYNBviH+5aTcnSgWWYtLA1FWP D/bB3eP6erPvWjI76ozOqYsUqrmX3bn2qTw+9UDF9K5VWT4pZn5q2Wr7yU91q/GzMO3E 0CNAtE91G65u9uoBkJNmh9R+GlywhpuQCTmeELmChoyaxSuaY+ouWr3Cvwv67vzg9ZJb 7mHq5kt1JME7Z4YpDY/00QHiymaf/TmrHp3pBv39Jmy6/gybLZG6E5/2ujxSibsv+1gb eM/oWSwedl51ZpBol73B19zOYMtlKp/Mr+qvaHY9s1fSmPh4ctZ4Jpy8DT6pqJ9ZZlYX YLhQ== X-Gm-Message-State: AMke39k3Ftx+TwF0LkwQJU0mw5YnDMd3ZGcdhSfARUwTWyJIVs+6dMxpPqIhfX9O9mBrPIQaFaD8VSJ5TRClfQ== X-Received: by 10.37.244.14 with SMTP id q14mr8371287ybd.55.1489160373154; Fri, 10 Mar 2017 07:39:33 -0800 (PST) MIME-Version: 1.0 Received: by 10.13.245.66 with HTTP; Fri, 10 Mar 2017 07:39:32 -0800 (PST) In-Reply-To: <7a9d8b15-963a-b48a-5700-15199ccbfc25@abelian.org> References: <15a98cc579c-d3b-de27@webprd-a58.mail.aol.com> <08c5eae2-8c19-da4d-f5b9-30b83712932f@psk31.plus.com> <58BAEA1D.5050802@posteo.de> <58BB4FA5.4080601@posteo.de> <553e8ee3-01a4-5840-0353-e82b320b1751@psk31.plus.com> <58BC3339.6060301@posteo.de> <58BC8101.8040206@posteo.de> <58BF3619.8030704@posteo.de> <58C1F67F.1060005@posteo.de> <7a9d8b15-963a-b48a-5700-15199ccbfc25@abelian.org> From: Alex K Date: Fri, 10 Mar 2017 18:39:32 +0300 Message-ID: To: rsgb_lf_group@blacksheep.org X-Scan-Signature: 8d5e679c4ecb21aeba32cebcefaae7cb Subject: Re: VLF: Tonite... Content-Type: multipart/alternative; boundary=f403045db08a0e3b1e054a622b95 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: 10830 --f403045db08a0e3b1e054a622b95 Content-Type: text/plain; charset=UTF-8 Hello Stefan, VLF! Yes! Optimization of my receiving system yielded positive takes. Both 8-ch transmissions were successfully and quite easily decoded. It is interesting that for transmission of March 07 of 22:30 best decode achiewed with small freq offset. Without this offset was also successful decode but with smaller Eb/N0. On reception only E-probe was used. I found that this setup, without Loop-ant, gives the best SNR in my environment. Grabber is running and my next visit will at Monday. Congrats to Stefan on his 8-char successful transmissions! As usualy files are here: http://rn3aus.narod.ru/ebnaut-vlf-7-9mar2017.zip ebnaut-rx V0.5 input file C:\EbNaut\ebnaut08_MAR_0448_8270-1pps.wav sample rate 0.342935 per second rx frequency 8270.1 file start time 2017-03-07 22:10:11.190 polynomial 16K21A crc size 16 number of chars 8 block size 64 symbol period 30.000 number of symbols 1344 list length 200000 start offset 600.774 freq offset 0.000009 cores 2 skipped 600.696925 seconds to start initial reference phase 19.0 --------------------------------------------- found *CONGRATS* list rank 12 reference phase 30 30 30 30 carrier RMS 1.213e-004 noise RMS 1.783e-005 carrier S/N 16.65 dB in 24.8 uHz carrier Es/N0 -14.63 dB carrier Eb/N0 0.06 dB info bit period 884.21 seconds symbol error rate 532/1344 = 39.583 % Es/N0 from symbol errors -14.5 dB Eb/N0 from symbol errors 0.2 dB Shannon capacity 5.9 bits/hour Shannon efficiency 69.5 % symbols file C:\EbNaut\ebnaut08_MAR_0448_8270-1pps-symbols.csv elapsed 20 seconds ebnaut-rx V0.5 input file C:\EbNaut\ebnaut09_MAR_2248_8270-1pps.wav sample rate 0.342935 per second rx frequency 8270.1 file start time 2017-03-09 16:10:11.190 polynomial 16K21A crc size 16 number of chars 8 block size 64 symbol period 30.000 number of symbols 1344 list length 200000 start offset 6600.774 freq offset 0.000000 cores 1 skipped 6601.834167 seconds to start initial reference phase 33.2 --------------------------------------------- found *GOOD DAY* list rank 0 reference phase 0 0 0 0 carrier RMS 1.397e-004 noise RMS 1.888e-005 carrier S/N 17.39 dB in 24.8 uHz carrier Es/N0 -13.90 dB carrier Eb/N0 0.80 dB info bit period 884.21 seconds symbol error rate 546/1344 = 40.625 % Es/N0 from symbol errors -15.5 dB Eb/N0 from symbol errors -0.8 dB Shannon capacity 6.9 bits/hour Shannon efficiency 58.9 % symbols file C:\EbNaut\ebnaut09_MAR_2248_8270-1pps-symbols.csv elapsed 11 seconds 2017-03-10 16:57 GMT+03:00 Paul Nicholson : > > Stefan wrote: > > > same parameters as below, started 18 UTC. > > Another solid transmission: > > carrier Eb/N0: 10.6 dB > carrier S/N: 27.20 dB in 24.8 uHz > > Peaking at offset +0.37 seconds. > > Eddie wrote: > > > carrier Eb/N0 5.30 dB > > carrier S/N 21.89 dB in 24.8 uHz > > Here in the E-field > > carrier Eb/N0: 3.9 dB > carrier S/N: 20.47 dB in 24.8 uHz > > -- > Paul Nicholson > -- > > > --f403045db08a0e3b1e054a622b95 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hello Stefan, VLF!
Yes!
Optimization of my receivin= g system yielded positive takes. Both 8-ch transmissions were successfully = and quite easily decoded.
It is interesting that for transmission of March 07 of 22:30 best decode=20 achiewed with small freq offset. Without this offset=C2=A0 was also=20 successful decode but with smaller Eb/N0.
On reception only E-probe was = used. I found that this setup, without Loop-ant, gives the best SNR in my e= nvironment.
Grabber is running and my next visit will at Monday.
Cong= rats to Stefan on his 8-char successful transmissions!

As usualy fil= es are here:
http://rn3aus.narod.ru/ebnaut-vlf-7-9= mar2017.zip=C2=A0

ebnaut-rx V0.5<= /span>
input file C:\EbNaut\ebnaut08_MAR_= 0448_8270-1pps.wav
sample rate 0.3= 42935 per second
rx frequency 8270= .1
file start time 2017-03-07 22:1= 0:11.190
polynomial 16K21A<= br>crc size 16
number of chars 8
bloc= k size 64
symbol period 30.000
number of symbols 1344
list length 200000
start offset 600.774
f= req offset 0.000009
cores 2=
skipped 600.696925 seconds to start
initial reference phase 19.0-------------------------------------------= --
found CONGRATS=
list rank 12
reference phase=C2=A0=C2=A0 30=C2=A0=C2=A0 30=C2=A0=C2= =A0 30=C2=A0=C2=A0 30
carrier RMS = 1.213e-004 noise RMS 1.783e-005
ca= rrier S/N 16.65 dB in 24.8 uHz
car= rier Es/N0 -14.63 dB
carrier Eb/N0= 0.06 dB
info bit period 884.21 se= conds
symbol error rate 532/1344 = =3D 39.583 %
Es/N0 from symbol err= ors -14.5 dB
Eb/N0 from symbol err= ors 0.2 dB
Shannon capacity 5.9 bi= ts/hour
Shannon efficiency 69.5 %<= /span>
symbols file C:\EbNaut\ebnaut08_MA= R_0448_8270-1pps-symbols.csv
elaps= ed 20 seconds

ebnaut-rx V0.5
input file C:\EbNaut\ebnaut09_MAR_2= 248_8270-1pps.wav
sample rate 0.34= 2935 per second
rx frequency 8270.= 1
file start time 2017-03-09 16:10= :11.190
polynomial 16K21Acrc size 16
number of chars 8
block= size 64
symbol period 30.000
number of symbols 1344
list length 200000
start offset 6600.774
f= req offset 0.000000
cores 1=
skipped 6601.834167 seconds to start
initial reference phase 33.2------------------------------------------= ---
found GOOD DAY
list rank 0
reference phase=C2=A0=C2=A0=C2=A0 0=C2=A0=C2=A0=C2=A0 = 0=C2=A0=C2=A0=C2=A0 0=C2=A0=C2=A0=C2=A0 0
carrier RMS 1.397e-004 noise RMS 1.888e-005
carrier S/N 17.39 dB in 24.8 uHz
carrier Es/N0 -13.90 dB
carrier Eb/N0 0.80 dB
in= fo bit period 884.21 seconds
symbo= l error rate 546/1344 =3D 40.625 %
Es/N0 from symbol errors -15.5 dB
Eb/N0 from symbol errors -0.8 dB
= Shannon capacity 6.9 bits/hour
Sha= nnon efficiency 58.9 %
symbols fil= e C:\EbNaut\ebnaut09_MAR_2248_8270-1pps-symbols.csv
elapsed 11 seconds


2017-03-10 16:57 GMT+03:00 Paul N= icholson <vlf0403@abelian.org>:

Stefan wrote:

> same parameters as below, started 18 UTC.

 Another solid transmission:

=C2=A0carrier Eb/N0: 10.6 dB
=C2=A0carrier S/N: 27.20 dB in 24.8 uHz

Peaking at offset +0.37 seconds.

Eddie wrote:

> carrier Eb/N0 5.30 dB
> carrier S/N 21.89 dB in 24.8 uHz

 Here in the E-field

=C2=A0carrier Eb/N0: 3.9 dB
=C2=A0carrier S/N: 20.47 dB in 24.8 uHz

--
Paul Nicholson
--



--f403045db08a0e3b1e054a622b95--