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LF: Re[2]: LF: Re[2]: LF: Re: DK7FC EbNaut message on 8270.1 Hz decoded

To: [email protected]
Subject: LF: Re[2]: LF: Re[2]: LF: Re: DK7FC EbNaut message on 8270.1 Hz decoded nr Moscow by RN3AUS
From: Alex K <[email protected]>
Date: Mon, 20 Feb 2017 19:05:30 +0300
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Cc: DK7FC <[email protected]>
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Hello Stefan, VLF

... and new decode again!

ebnaut-rx V0.5
input file C:\EbNaut\ebnaut19_FEB_0026_8270-1pps.wav
sample rate 0.342935 per second
rx frequency 8270.1
file start time 2017-02-18 17:48:44.690
polynomial 16K21A
crc size 16
number of chars 7
block size 58
symbol period 30.000
number of symbols 1248
list length 20000
start offset 1587.274
freq offset 0.000000
cores 1
skipped 1586.306443 seconds to start
initial reference phase 8.5
---------------------------------------------
found DREAMER
list rank 5
reference phase    0    0    0    0
carrier RMS 3.002e-005 noise RMS 4.463e-006
carrier S/N 16.56 dB in 26.7 uHz
carrier Es/N0 -14.41 dB
carrier Eb/N0 0.55 dB
info bit period 938.35 seconds
symbol error rate 508/1248 = 40.705 %
Es/N0 from symbol errors -15.5 dB
Eb/N0 from symbol errors -0.5 dB
Shannon capacity 6.2 bits/hour
Shannon efficiency 62.2 %
symbols file C:\EbNaut\ebnaut19_FEB_0026_8270-1pps-symbols.csv
elapsed 10 seconds
---------------------------------------------
found DREAMER
list rank 9
reference phase   30   30    0    0
carrier RMS 3.106e-005 noise RMS 4.463e-006
carrier S/N 16.85 dB in 26.7 uHz
carrier Es/N0 -14.11 dB
carrier Eb/N0 0.84 dB
info bit period 938.35 seconds
symbol error rate 495/1248 = 39.663 %
Es/N0 from symbol errors -14.6 dB
Eb/N0 from symbol errors 0.4 dB
Shannon capacity 6.6 bits/hour
Shannon efficiency 58.2 %
symbols file C:\EbNaut\ebnaut19_FEB_0026_8270-1pps-symbols.csv
elapsed 128 seconds
---------------------------------------------
found DREAMER
list rank 0
reference phase   30    0    0  -30
carrier RMS 3.106e-005 noise RMS 4.463e-006
carrier S/N 16.85 dB in 26.7 uHz
carrier Es/N0 -14.11 dB
carrier Eb/N0 0.84 dB
info bit period 938.35 seconds
symbol error rate 493/1248 = 39.503 %
Es/N0 from symbol errors -14.5 dB
Eb/N0 from symbol errors 0.5 dB
Shannon capacity 6.6 bits/hour
Shannon efficiency 58.2 %
symbols file C:\EbNaut\ebnaut19_FEB_0026_8270-1pps-symbols.csv
elapsed 531 seconds



Let's risk something more again and try:

f = 8270.100000 Hz
Start time: Saturday 18.Feb.2017   18:00:00 UTC
Symbol period: 30 s
Characters: 7
CRC bits: 16
Coding 16K21A
Duration: 10h, 24m, 0s
Antenna current: 700 mA



73, Stefan



Attachment: DK7FC-18feb2017-1815z-1pps-ebnaut.png
Description: PNG image

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