From: "jrusgrove@comcast.net" <jrusgrove@comcast.net>
To: "(rsgb_lf_group@blacksheep.org)" <rsgb_lf_group@blacksheep.org>
MIME-Version: 1.0
Date: Sun, 25 Feb 2018 13:23:51 -0500
Message-ID: <1UQOBAX9Wi.5GpBpi86BpG@optiplex980-pc>
User-Agent: OEClassic/2.7 (Win7; P; 2017-02-12)
Subject: LF: VLF DK7FC > W1VD 8.27 kHz EbNaut more success!
Content-Type: multipart/alternative; boundary="DQjt=_zl3FMq1qDe3GdVSSo4BqygOWn2n2"
Sender: owner-rsgb_lf_group@blacksheep.org
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org

This is a multi-part message in MIME format

--DQjt=_zl3FMq1qDe3GdVSSo4BqygOWn2n2
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline

Stefans transmission:

f =3D 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=20
report the successful reception of a 2 character message. Stacking of =
3 =20
transmissions was required (0221, 0222 and 0223). There is also a 0224=
 file but=20
it has timing issues and may or may not be usable.=20

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 2.5kH=
z
carrier Es/N0 -18.33 dB
carrier Eb/N0 0.47 dB
info bit period 2273.68 seconds
symbol error rate 373/864 =3D 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 2.5kH=
z
carrier Es/N0 -18.17 dB
carrier Eb/N0 0.62 dB
info bit period 2273.68 seconds
symbol error rate 374/864 =3D 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

--DQjt=_zl3FMq1qDe3GdVSSo4BqygOWn2n2
Content-Type: text/html; charset="utf-8"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline

<HTML><HEAD>
<STYLE type=3Dtext/css> body { margin:0.7em; } body.OECFntDef, body.OE=
CFntDef div { font-family:Arial,"Segoe UI",Tahoma,Verdana,Helvetica,sa=
ns-serif;font-size:10pt; }</STYLE>

<META name=3DGENERATOR content=3D"MSHTML 11.00.9600.18450"></HEAD>
<BODY spellcheck=3Dtrue class=3DOECFntDef>
<DIV>Stefans transmission:</DIV>
<DIV>&nbsp;</DIV>
<DIV><STRONG>f =3D 8270.1000 Hz<BR abp=3D"2715">Start time: 19.FEB.201=
8&nbsp; 22:30:00 UTC (daily)<BR abp=3D"2716">Symbol period: 30 s<BR ab=
p=3D"2717">Characters: 2<BR abp=3D"2718">CRC bits: 22<BR abp=3D"2719">=
Coding 16K21A<BR abp=3D"2720">Duration: 07:12 [hh:mm]<BR abp=3D"2721">=
Antenna current: 700 mA</STRONG></DIV>
<DIV><STRONG></STRONG>&nbsp;</DIV>
<DIV>After a successful one character reception earlier in the week, w=
e can now report the successful reception of a 2 character message.&nb=
sp;Stacking of 3&nbsp; transmissions&nbsp;was required (0221, 0222 and=
 0223).&nbsp;There is also a&nbsp;0224&nbsp;file but it has timing iss=
ues and may or may not be usable. </DIV>
<DIV>&nbsp;</DIV>
<DIV>ebnaut-rx V0.8<BR>input file C:\EbNaut\DK7FC\sum212223.wav<BR>sam=
ple rate 0.457240 per second<BR>rx frequency 8270<BR>file start time 2=
018-02-22 22:21:17.790<BR>polynomial 16K21A<BR>crc size 22<BR>number o=
f chars 2<BR>block size 34<BR>symbol period 30.000<BR>number of symbol=
s 864<BR>start offset 537.000<BR>freq offset 0.100000<BR>cores 2<BR>li=
st length 500000<BR>skipped 538.011261 seconds to start<BR>initial ref=
erence phase 30.6<BR>---------------------------------------------<BR>=
found DX<BR>list rank 48426<BR>reference phase 150,150,150,150<BR>carr=
ier S/N 11.04 dB in 38.6 uHz, -33.10 dB in 1Hz, -67.08 dB in 2.5kHz<BR=
>carrier Es/N0 -18.33 dB<BR>carrier Eb/N0 0.47 dB<BR>info bit period 2=
273.68 seconds<BR>symbol error rate 373/864 =3D 43.171 %<BR>Es/N0 from=
 symbol errors -18.2 dB<BR>Eb/N0 from symbol errors 0.6 dB<BR>Shannon =
capacity 2.5 bits/hour<BR>Shannon efficiency 62.7 %<BR>symbols file C:=
\EbNaut\DK7FC\sum212223-symbols.csv<BR>elapsed 52 seconds<BR>---------=
------------------------------------<BR>found DX<BR>list rank 17074<BR=
>reference phase 120,150,120,150<BR>carrier S/N 11.19 dB in 38.6 uHz, =
-32.94 dB in 1Hz, -66.92 dB in 2.5kHz<BR>carrier Es/N0 -18.17 dB<BR>ca=
rrier Eb/N0 0.62 dB<BR>info bit period 2273.68 seconds<BR>symbol error=
 rate 374/864 =3D 43.287 %<BR>Es/N0 from symbol errors -18.4 dB<BR>Eb/=
N0 from symbol errors 0.4 dB<BR>Shannon capacity 2.6 bits/hour<BR>Shan=
non efficiency 60.5 %<BR>symbols file C:\EbNaut\DK7FC\sum212223-symbol=
s.csv<BR>elapsed 383 seconds<BR></DIV>
<DIV>Jay W1VD&nbsp; WD2XNS&nbsp; WE2XGR/2</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV><STRONG></STRONG>&nbsp;</DIV>
<DIV><BR></DIV></BODY></HTML>

--DQjt=_zl3FMq1qDe3GdVSSo4BqygOWn2n2--