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Re: LF: EbNaut tests 137.490 kHz

from [Domenico IZ7SLZ] [Permanent Link][Original]
To: "[email protected]" <[email protected]>
Subject: Re: LF: EbNaut tests 137.490 kHz
From: Domenico IZ7SLZ <[email protected]>
Date: Sun, 11 Dec 2016 16:54:14 +0100
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Hello Markus & LF,

here the results of last DF6NM's EbNaut transmissions:

UTC    Eb/N0[dB]  BER[%]  carrier Eb/N0 [dB]  notes

18.00     18.1           0.2           19.9
19.00     14.7           2.3           14.9
20.00     71.6            0             23.5
21.00     71.6            0             26.4               Foff +0.0001 Hz
22.00     71.6            0             22.4
23.00     71.6            0             27.1
00.00     71.6            0             29.7
01.00     71.6            0             29.1
02.00     71.6            0             29.0               Toff +0.02s
03.00     71.6            0             27.1
04.00     71.6            0             26.4               Toff +0.02s
05.00     71.6            0             27.6
06.00       5.1          25             6.3                Foff +0.0001 Hz
07.00     NIL

All relevant wav files has been uploaded in the folder:  http://qsl.net/iz7slz/DF6NM.

73, Domenico iz7slz


..

On 10 December 2016 at 19:10, Markus Vester <[email protected]> wrote:

More EbNaut tonight:  Same 2 s/symbol format with hourly repeats starting 18 UT, but carrying a new 8-char message.

Best 73,
Markus (DF6NM)

-----Ursprüngliche Mitteilung-----
Von: Markus Vester <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Fr, 9 Dez 2016 11:10 pm
Betreff: Re: EbNaut tests 137.490 kHz


To obtain some extra sensitivity, I have now slowed down to 2 seconds per symbol, with transmissions starting 0.3 s after each full hour.

Frequency 137490 Hz,
8 characters, 8K19A,
2 second symbols (duration 21m52s)
Start times: 22:00, 23:00, etc. until 7:00 UT, plus 0.3 s transmit delay.

73, Markus

-----Ursprüngliche Mitteilung-----
Von: Markus Vester <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Fr, 9 Dez 2016 8:39 pm
Betreff: EbNaut tests 137.490 kHz

This evening I'll run some LF EbNaut tests again:

Frequency 137490 Hz,
8 characters, 8K19A,
1 second symbols (duration 656 seconds)
start times: 19:30, 20:00, etc, plus 0.3 s transmit delay

Best 73,
Markus (DF6NM)

Attachment: DF6NM decode 2016-12-11 00.00.png
Description: PNG image

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