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Re: LF: LF and VLF EbNaut

To: [email protected]
Subject: Re: LF: LF and VLF EbNaut
From: [email protected]
Date: Sun, 9 Dec 2018 14:16:54 -0330 (NST)
In-reply-to: <[email protected]>
References: <[email protected]> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
Hi Markus Rob and group,

The old class E tx is still feeding 50 watts to the aerial and
the raspi 3 running Paul Nicholson's ebkey piping ebnaut will
continue for 2 days.

It is interesting to see on Markus OPDS spectrograms that signals
are arriving during the daytime at levels that might be sufficient for
a decode.

Thanks for the reports, Markus and the company on LF Rob.

73
Joe VO1NA


On Sun, 9 Dec 2018, Markus Vester wrote:

Here's a summary of decodes from here last night. On average, SNR was 
significantly better than during the previous night. Unfortunately I had 
forgotten to activate data saves at DL0AO so these are missing.

EbNaut Decodes 2018-12-08/09
VO1NA 137477 Hz:
        DF6NM
start  sym  car  message
22:00 15.4 17.4  .VO1NA.
23:00 14.6 15.9
00:00  1.3  7.4
01:00  8.9 13.9
02:00 16.0 18.3  GN BOB!
03:00  4.2  8.8
04:00  7.0  8.9
05:00 13.2 15.9  -VO1NA-
06:00 11.7 14.6
07:00 10.9 13.8
08:00  1.3  0.8
K3RWR 137479 Hz:
        DF6NM
start  sym  car  message
22:00  3.4  4.5  GL_73
22:30  3.4  5.2
00:30  5.4  7.9  EB/N0
01:00  6.4  8.1
01:30  3.0  3.8
02:00  5.1  6.1
02:30  8.7  8.3  *RWR*
03:30  4.9  5.5
04:00  8.1  8.7
04:30  5.2  7.9
05:00  0.5  2.5
05:30  5.3  5.9
06:30  3.7  5.2
07:00  4.8  4.8
07:30  1.7  0.2

If you guys want to continue tonight I will try to run autodecoders on both 
sites: 
http://df6nm.darc.de/opds/ebnautresults.txt
https://vlf.u01.de/LF/LFgrabber/ebnautresults.txt

All the best,
Markus (DF6NM)


-----Ursprüngliche Mitteilung-----
Von: [email protected] <[email protected]>
An: [email protected] <[email protected]>
Verschickt: So, 9. Dez 2018 1:50
Betreff: Re: LF: LF and VLF EbNaut

#yiv3678649795 body {margin:0.7em;}#yiv3678649795 body.yiv3678649795OECFntDef, 
#yiv3678649795 body.yiv3678649795OECFntDef div {font-family:Arial, Tahoma, 
Verdana, Helvetica, sans-serif;font-size:10pt;}Rob Continued 'perfect' 
reception with CW ID.   Jay W1VD  
----- Original Message -----From: Rob Renoud <[email protected]>Reply-To: 
<[email protected]>To: <[email protected]>Sent: 12/8/2018 4:17:50 
PMSubject: Re: LF: LF and VLF EbNautLF EbNaut & Markus,
There is a definite post sunset opening to Europe from the NA East Coast.
I have modified my station to overlay a 10 minute CW ID (off-on CW modulation 
at 20 wpm) on the EbNaut message stream.  Will be interested to see what 
effect it has on decodes.  Am still transmitting a 5 character text message as 
before.
Tnx es 73,Rob - K3RWR
On Dec 8, 2018, at 10:57, Markus Vester <[email protected]> wrote:


Here are the Bavarian decodes from last night's sesseion. Eb/N0 values derived 
from symbol error rate and carrier power were sometimes rather inconsistent so 
both are mentioned here. As expected, the quiet DL0AO site is generally a few 
dB better than mine, decoding VO1NA consistently in every single slot.

I was amazed by the early start from Canada. At this time of the year, such 
northerly paths are apparently close enough to darkness almost around the 
clock. My 100 kHz monitor shows Loran signals from East China rolling in 
already around midday here.

EbNaut Decodes 2018-12-07/08

VO1NA 137477 Hz:
        DF6NM       DL0AO
start  sym  car    sym  car
17:00  3.3  3.1    5.8  5.2  MARCONI
18:00  8.6  9.5   12.3 13.3
19:00  5.7  7.4    6.7  7.1
20:00  4.0  1.9   12.0  7.8
21:00  2.3  5.0   11.8  7.3
22:00  7.1  7.9   13.4 12.2
23:00 10.7 10.8   10.5  8.9
00:00  9.5  8.4   12.1  4.3
01:00  9.8  8.5   11.9  8.2  *******
02:00  2.4  1.9    7.2  6.1  -VO1NA-
03:00  7.3  4.1    4.2 -1.3
04:00  1.7  3.0    5.5  2.9
05:00  8.5  5.4    8.3  4.2
06:00     ---     10.0  8.9
07:00  5.7  5.8    6.6  7.2
08:00     ---      3.1  2.3 (+0.2 mHz)
K3RWR 137479 Hz:
        DF6NM       DL0AO
start  sym  car    sym  car
20:00     ---         ---    K3RWR
20:30     ---         --- 
21:00  2.3  1.5       ---
21:30     ---         --- 
22:00     ---      2.0 -1.8
22:30     ---         --- 
23:00     ---      4.6  0.1 
23:30  6.4  3.1   11.3  8.2
00:00  5.0  2.7    3.9 -3.5
00:30  5.4  4.8       ---
01:00     ---         ---
01:30     ---         ---
02:00  5.1  3.9    3.6  3.1
02:30     ---      1.2 -0.8
03:00     ---         ---
03:30     ---         ---
04:00  2.8  0.4       ---
04:30  0.9 -1.3    5.5  1.5
05:00  6.4  1.9    4.0 -1.6
05:30  4.0  0.4    5.9 -0.5
06:00 -1.6 -1.7    1.2 -0.1
06:30     ---      4.4  0.1
07:00     ---         ---
07:30     ---      1.4  1.8
08:00     ---      0.4  0.2

Best 73,
Markus



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