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LF: VLF DK7FC > W1VD 8.27 kHz EbNaut more success!

To: "([email protected])" <[email protected]>
Subject: LF: VLF DK7FC > W1VD 8.27 kHz EbNaut more success!
From: "[email protected]" <[email protected]>
Date: Sun, 25 Feb 2018 13:23:51 -0500
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=comcast.net; s=q20161114; t=1519583030; bh=ATtvYi9d4qMiRM6ynNZPhwiTqAK27tLjQAft4Sxap8U=; h=Received:Received:From:Subject:To:Content-Type:MIME-Version:Date: Message-ID; b=X6f8d5UYkFuLto/9DvTHjbHuiXYC6wd4HKz2Wb/CiZRJNAt6mpb8QMzu+FvwWBAAo /p561umIJmgiVM8ah3wYVHOZPN4rFgLyBTMEaW+DjzqE6nA3xgYCpSgmtLooafiBbb lmA/P2TY+Kd+y61jFloFu9VCMT4ryEwjQYMygAaybVJa4Ov/UGrvwdv4UduDdPOQ8h FOPd4tg0DQyqx+M9mJVrkIQjNM2gCMw0Sd0q7c0Ea5L2c23gQvkRjYhF/ytX6psVUs YIUYPa/O92CmzTH4lESgpBuQuyTiEpw9cpbLvHl1KzEo79t79NCOycrSQnqLW4ePdn dg6t6teP8w0mQ==
Reply-to: [email protected]
Sender: [email protected]
User-agent: OEClassic/2.7 (Win7; P; 2017-02-12)
Stefans transmission:
 
f = 8270.1000 Hz
Start time: 19.FEB.2018  22:30:00 UTC (daily)
Symbol period: 30 s
Characters: 2
CRC bits: 22
Coding 16K21A
Duration: 07:12 [hh:mm]
Antenna current: 700 mA
 
After a successful one character reception earlier in the week, we can now report the successful reception of a 2 character message. Stacking of 3  transmissions was required (0221, 0222 and 0223). There is also a 0224 file but it has timing issues and may or may not be usable.
 
ebnaut-rx V0.8
input file C:\EbNaut\DK7FC\sum212223.wav
sample rate 0.457240 per second
rx frequency 8270
file start time 2018-02-22 22:21:17.790
polynomial 16K21A
crc size 22
number of chars 2
block size 34
symbol period 30.000
number of symbols 864
start offset 537.000
freq offset 0.100000
cores 2
list length 500000
skipped 538.011261 seconds to start
initial reference phase 30.6
---------------------------------------------
found DX
list rank 48426
reference phase 150,150,150,150
carrier S/N 11.04 dB in 38.6 uHz, -33.10 dB in 1Hz, -67.08 dB in 2.5kHz
carrier Es/N0 -18.33 dB
carrier Eb/N0 0.47 dB
info bit period 2273.68 seconds
symbol error rate 373/864 = 43.171 %
Es/N0 from symbol errors -18.2 dB
Eb/N0 from symbol errors 0.6 dB
Shannon capacity 2.5 bits/hour
Shannon efficiency 62.7 %
symbols file C:\EbNaut\DK7FC\sum212223-symbols.csv
elapsed 52 seconds
---------------------------------------------
found DX
list rank 17074
reference phase 120,150,120,150
carrier S/N 11.19 dB in 38.6 uHz, -32.94 dB in 1Hz, -66.92 dB in 2.5kHz
carrier Es/N0 -18.17 dB
carrier Eb/N0 0.62 dB
info bit period 2273.68 seconds
symbol error rate 374/864 = 43.287 %
Es/N0 from symbol errors -18.4 dB
Eb/N0 from symbol errors 0.4 dB
Shannon capacity 2.6 bits/hour
Shannon efficiency 60.5 %
symbols file C:\EbNaut\DK7FC\sum212223-symbols.csv
elapsed 383 seconds
Jay W1VD  WD2XNS  WE2XGR/2
 
 
 

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