Re: LF: LF and VLF EbNaut

[Markus Vester <markusvester@aol.com>]

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: jrusgrove@comcast.net <jrusgrove@comcast.net>
An: rsgb_lf_group@blacksheep.org <rsgb_lf_group@blacksheep.org>
Verschickt: So, 9. Dez 2018 1:50
Betreff: Re: LF: LF and VLF EbNaut

Rob

 

Continued 'perfect' reception with CW ID.

 

 

 

Jay W1VD

 

 

----- Original Message -----

From: Rob Renoud <k3rwr@md.metrocast.net>

Reply-To: <rsgb_lf_group@blacksheep.org>

To: <rsgb_lf_group@blacksheep.org>

Sent: 12/8/2018 4:17:50 PM

Subject: Re: LF: LF and VLF EbNaut

---

LF 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 <markusvester@aol.com> 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