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Re: LF: More EbNaut tests on 137490 Hz

from [Domenico IZ7SLZ] [Permanent Link][Original]
To: "[email protected]" <[email protected]>
Subject: Re: LF: More EbNaut tests on 137490 Hz
From: Domenico IZ7SLZ <[email protected]>
Date: Sun, 9 Oct 2016 23:56:43 +0200
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Hello  EbNauters,

different story here in JN80. Signal from Markus was strong at 20.00 but was impossible to decode at 21:00
most probably due to high QRN from thunderstorms near my area.

Message: DF6NM

UT    Eb/N0 syn  Eb/N0 carr
20:00         8.7         10.4
20:30         5.4         7
21:00          NIL

Nice to see more people playing with EbNaut.
73, Domenico iz7slz

 

On 9 October 2016 at 23:38, Michel Brunel <[email protected]> wrote:
Hi Markus,

Excellent signal so decoding was a breeze. Hopefully the antenna was tuned on 630m  

Michel - f5wk JN18HP




Le dimanche 9 octobre 2016 à 21:46:26, Markus écrivait :


 I intend to run a few more EbNaut tests tonight. This time I will use a 137490 Hz carrier from my Rubidium-controlled decadic synthesizer and a diode PSK modulator. 

137490.000 Hz
5 characters, 8K19 
1 second symbols
Starttimes 20:00, 20:30, 21:00 UT (with no extra delay)
Duration 512 seconds

Best 73,
Markus



-----Ursprüngliche Mitteilung----- 
Von: Markus Vester <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: So, 9 Okt 2016 2:41 am
Betreff: LF: EbNaut tests 137508 Hz

Tonight I tried to generate EbNaut transmissions using SpecLab's digimode modulator. After finding a workaround to avoid unwanted differential encoding, I was able to decode my own transmission locally. A five character message will now be sent 1.5 seconds after each hour, until 6 UT. 

137508.000 Hz
5 characters, 8K19 
1 second symbols
Starttime hh:00:01.5
Duration 512 seconds

73,
Markus (DF6NM)





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Attachment: Screenshot 2016-10-09 23.45.47.png
Description: PNG image

Attachment: Screenshot 2016-10-09 23.44.54.png
Description: PNG image

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