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, HTML_FONT_SIZE_LARGE,HTML_MESSAGE,RCVD_IN_DNSWL_MED,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 X-Spam-DCC: : mailn 1480; 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 v1HC4ErK007853 for ; Fri, 17 Feb 2017 13:04:16 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1cehCg-0002JZ-Ip for rs_out_1@blacksheep.org; Fri, 17 Feb 2017 11:59:58 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1cehCf-0002JQ-LD for rsgb_lf_group@blacksheep.org; Fri, 17 Feb 2017 11:59:57 +0000 Received: from mout02.posteo.de ([185.67.36.66]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.87) (envelope-from ) id 1cehCc-0004uA-AS for rsgb_lf_group@blacksheep.org; Fri, 17 Feb 2017 11:59:56 +0000 Received: from submission (posteo.de [89.146.220.130]) by mout02.posteo.de (Postfix) with ESMTPS id 1CA8F20BF5 for ; Fri, 17 Feb 2017 12:59:53 +0100 (CET) Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 3vPs5h3Wblz108m for ; Fri, 17 Feb 2017 12:59:52 +0100 (CET) Message-ID: <58A6E5B8.6080007@posteo.de> Date: Fri, 17 Feb 2017 12:59:52 +0100 From: DK7FC User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <58A2DCAE.90605@posteo.de> <58A42DDF.4040602@posteo.de> <1487175699.649112536@f356.i.mail.ru> <58A4B8BC.1000700@posteo.de> <964e281c-60d0-076a-5e0f-b6388207fb62@abelian.org> In-Reply-To: X-Scan-Signature: 0a8bac5594b583e1d7c1e245a9e3ea16 Subject: Re: LF: Re[2]: LF: Re: DK7FC EbNaut message on 8270.1 Hz decoded nr Moscow by RN3AUS Content-Type: multipart/alternative; boundary="------------000401090309050709000203" 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: 10619 This is a multi-part message in MIME format. --------------000401090309050709000203 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hello Alex, Very nice! Congrats again to that result, 5 characters over such a distance, i think is is beyond of what i've expected what's possible on that path. :-) A time offset of 14184 seconds. Instead of 15_FEB_2251_8270-1pps.txt it would be interesting to try 16_FEB_0221_8270-1pps.txt where the time offset is just 1584 seconds. It would be interesting to see if the Eb/N0 is the same or better. Can you provide the txt file and sr file via the reflector? There are some OMs in the background who need something as a turorial, EbNaut newcomers :-) The file size is small enough. I'm planning further transmissions for the weekend... 73, Stefan Am 16.02.2017 17:09, schrieb Alex K: > Hello VLF, Stefan! > Easy and fast decode! Wow! > I make some improvements by switching off MIC gain. Now sound input is > not overloaded at night time... > Grabber will run to Monday or longer, I will visit it for results at > Monday. > 73! > ebnaut-rx V0.5 > input file C:\EbNaut\VLF_EBNAUT\EbNaut\ebnaut15_FEB_2251_8270-1pps.wav > sample rate 0.342935 per second > rx frequency 8270.1 > file start time 2017-02-15 16:13:47.290 > polynomial 8K19A > crc size 16 > number of chars 5 > block size 46 > symbol period 60.000 > number of symbols 512 > list length 20000 > start offset 14184.674 > freq offset 0.000000 > cores 1 > skipped 14183.445843 seconds to start > initial reference phase 5.3 > --------------------------------------------- > found DL-RU > list rank 3151 > reference phase 180 180 180 180 > carrier RMS 2.988e-005 noise RMS 5.866e-006 > carrier S/N 14.14 dB in 32.6 uHz > carrier Es/N0 -12.95 dB > carrier Eb/N0 -0.41 dB > info bit period 1077.89 seconds > symbol error rate 208/512 = 40.625 % > Es/N0 from symbol errors -15.5 dB > Eb/N0 from symbol errors -3.0 dB > Shannon capacity 4.3 bits/hour > Shannon efficiency 78.1 % > symbols file > C:\EbNaut\VLF_EBNAUT\EbNaut\ebnaut15_FEB_2251_8270-1pps-symbols.csv > elapsed 8 seconds > --------------------------------------------- > found DL-RU > list rank 363 > reference phase 180 180 -150 -150 > carrier RMS 3.088e-005 noise RMS 5.866e-006 > carrier S/N 14.43 dB in 32.6 uHz > carrier Es/N0 -12.67 dB > carrier Eb/N0 -0.12 dB > info bit period 1077.89 seconds > symbol error rate 202/512 = 39.453 % > Es/N0 from symbol errors -14.4 dB > Eb/N0 from symbol errors -1.9 dB > Shannon capacity 4.6 bits/hour > Shannon efficiency 73.2 % > symbols file > C:\EbNaut\VLF_EBNAUT\EbNaut\ebnaut15_FEB_2251_8270-1pps-symbols.csv > elapsed 97 seconds > > 2017-02-16 16:36 GMT+03:00 Paul Nicholson >: > > > Stefan wrote: > > > f = 8270.100000 Hz > > Start time: 15.Feb.2017 20:10:00 UTC > > Symbol period: 60 s > > Characters: 5 > > CRC bits: 16 > > Coding 8K19A > > A good transmission this time. Decoded here Eb/N0 = +7.6 dB. > > Just for fun I decoded it on the RPi model 2, it took 20 > seconds to decode. > > Now over to Alex - good luck! > > -- > Paul Nicholson > -- > > --------------000401090309050709000203 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit Hello Alex,

Very nice! Congrats again to that result, 5 characters over such a distance, i think is is beyond of what i've expected what's possible on that path. :-)

A time offset of 14184 seconds. Instead of 15_FEB_2251_8270-1pps.txt it would be interesting to try 16_FEB_0221_8270-1pps.txt where the time offset is just 1584 seconds. It would be interesting to see if the Eb/N0 is the same or better.
Can you provide the txt file and sr file via the reflector? There are some OMs in the background who need something as a turorial, EbNaut newcomers :-) The file size is small enough.

I'm planning further transmissions for the weekend...

73, Stefan


Am 16.02.2017 17:09, schrieb Alex K:
Hello VLF, Stefan!
Easy and fast decode! Wow!
I make some improvements by switching off MIC gain. Now sound input is not overloaded at night time...
Grabber will run to Monday or longer, I will visit it for results at Monday.
73!
ebnaut-rx V0.5
input file C:\EbNaut\VLF_EBNAUT\EbNaut\ebnaut15_FEB_2251_8270-1pps.wav
sample rate 0.342935 per second
rx frequency 8270.1
file start time 2017-02-15 16:13:47.290
polynomial 8K19A
crc size 16
number of chars 5
block size 46
symbol period 60.000
number of symbols 512
list length 20000
start offset 14184.674
freq offset 0.000000
cores 1
skipped 14183.445843 seconds to start
initial reference phase 5.3
---------------------------------------------
found DL-RU
list rank 3151
reference phase  180  180  180  180
carrier RMS 2.988e-005 noise RMS 5.866e-006
carrier S/N 14.14 dB in 32.6 uHz
carrier Es/N0 -12.95 dB
carrier Eb/N0 -0.41 dB
info bit period 1077.89 seconds
symbol error rate 208/512 = 40.625 %
Es/N0 from symbol errors -15.5 dB
Eb/N0 from symbol errors -3.0 dB
Shannon capacity 4.3 bits/hour
Shannon efficiency 78.1 %
symbols file C:\EbNaut\VLF_EBNAUT\EbNaut\ebnaut15_FEB_2251_8270-1pps-symbols.csv
elapsed 8 seconds
---------------------------------------------
found DL-RU
list rank 363
reference phase  180  180 -150 -150
carrier RMS 3.088e-005 noise RMS 5.866e-006
carrier S/N 14.43 dB in 32.6 uHz
carrier Es/N0 -12.67 dB
carrier Eb/N0 -0.12 dB
info bit period 1077.89 seconds
symbol error rate 202/512 = 39.453 %
Es/N0 from symbol errors -14.4 dB
Eb/N0 from symbol errors -1.9 dB
Shannon capacity 4.6 bits/hour
Shannon efficiency 73.2 %
symbols file C:\EbNaut\VLF_EBNAUT\EbNaut\ebnaut15_FEB_2251_8270-1pps-symbols.csv
elapsed 97 seconds

2017-02-16 16:36 GMT+03:00 Paul Nicholson <vlf0403@abelian.org>:

Stefan wrote:

> f = 8270.100000 Hz
> Start time: 15.Feb.2017   20:10:00 UTC
> Symbol period: 60 s
> Characters: 5
> CRC bits: 16
> Coding 8K19A

A good transmission this time.  Decoded here Eb/N0 = +7.6 dB.

Just for fun I decoded it on the RPi model 2, it took 20
seconds to decode.

Now over to Alex - good luck!

--
Paul Nicholson
--


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