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LF: my results on VLF 05-08 May 2017

from [Alex K] [Permanent Link][Original]
To: rsgb_lf_group <[email protected]>, DK7FC <[email protected]>
Subject: LF: my results on VLF 05-08 May 2017
From: Alex K <[email protected]>
Date: Wed, 10 May 2017 19:34:17 +0300
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Hello VLF, Stefan
I think I have only false decodes of {05 May 19:15 8270.1 4-char} and {06 May 18:10 6470.1 2-char} transmissions.

Also no decodes of 75 and 100 char transmissions...

Here all these days it is raining with the snow (the winter has come back). Perhaps, there were noise from the charged drops.
Files for reprocessing:
http://rn3aus.narod.ru/ebnaut-8270-05may2017-1915z.zip
http://rn3aus.narod.ru/ebnaut-6470-06may2017-1810z.zip


ebnaut-rx V0.7a
input file C:\TEMP\ebnaut07_MAY_0037_6470-1pps.wav
sample rate 0.342935 per second
rx frequency 6470.1
file start time 2017-05-06 17:59:34.790
polynomial 16K21A
crc size 2
number of chars 2
block size 14
symbol period 60.000
number of symbols 544
list length 20000
start offset 637.154
freq offset 0.000000
cores 2
skipped 638.604983 seconds to start
initial reference phase -86.1
---------------------------------------------
found ZW
list rank 5
reference phase    0    0    0    0
carrier S/N 10.20 dB in 30.6 uHz, -34.94 dB in 1Hz, -68.92 dB in 2.5kHz
carrier Es/N0 -17.15 dB
carrier Eb/N0 -0.37 dB
info bit period 2863.16 seconds
symbol error rate 244/544 = 44.853 %
Es/N0 from symbol errors -20.7 dB
Eb/N0 from symbol errors -3.9 dB
Shannon capacity 1.7 bits/hour
Shannon efficiency 76.2 %
symbols file C:\TEMP\ebnaut07_MAY_0037_6470-1pps-symbols.csv
elapsed 3 seconds
---------------------------------------------
found ;.
list rank 2
reference phase  180  180  180  180
carrier S/N 9.35 dB in 30.6 uHz, -35.78 dB in 1Hz, -69.76 dB in 2.5kHz
carrier Es/N0 -18.00 dB
carrier Eb/N0 -1.22 dB
info bit period 2863.16 seconds
symbol error rate 240/544 = 44.118 %
Es/N0 from symbol errors -19.6 dB
Eb/N0 from symbol errors -2.8 dB
Shannon capacity 1.4 bits/hour
Shannon efficiency 92.4 %
symbols file C:\TEMP\ebnaut07_MAY_0037_6470-1pps-symbols.csv
elapsed 6 seconds
---------------------------------------------
found ZW
list rank 0
reference phase  -30  -30  -30  -30
carrier S/N 10.20 dB in 30.6 uHz, -34.94 dB in 1Hz, -68.92 dB in 2.5kHz
carrier Es/N0 -17.15 dB
carrier Eb/N0 -0.37 dB
info bit period 2863.16 seconds
symbol error rate 231/544 = 42.463 %
Es/N0 from symbol errors -17.4 dB
Eb/N0 from symbol errors -0.6 dB
Shannon capacity 1.7 bits/hour
Shannon efficiency 76.2 %
symbols file C:\TEMP\ebnaut07_MAY_0037_6470-1pps-symbols.csv
elapsed 15 seconds


--
Alex RN3AUS
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