Re: LF: More EbNaut tests on 137490 Hz

[Domenico IZ7SLZ <iz7slz.domenico@gmail.com>]

Good day Markus and all,

Here the report of your EbNaut signal in JN80

Message: DF6NM

UT     Eb/N0 sym  Eb/N0 car
-------------------------------------------

22.00   Nil  (my rx was off)
23.00   5.1     7.4
00.00   7.4     8.5
01.00   6.9    10.1
02.00  13.1   16.1
03.00  14.6   19.3
04.00  16.9   20.8

05.00    3.2   5.1 (local noise starts)

06.00   Nil

These are the max values obtained using the nominal (start and frequency) offsets.

Receiving condition: Receiver JRC NRD-92M with external 10 MHz GPSDO; antenna 7 meter passive whip.

Maybe someone wants to try EbNaut-rx program "off-line"  so in the folder
 https://www.dropbox.com/sh/a1a5d6k37qjqmhd/AAA5Jv0mwp0H4rbJHR4Pbg4va?dl=0
 i have uploaded the .wav files with recordings of DF6NM's signal received in JN80.

73, Domenico iz7slz

On 10 October 2016 at 00:09, Markus Vester <markusvester@aol.com> wrote:

Thanks very much to Michel and Domenico, and also to Riccardo who managed to receive the afternoon experiment. I'm glad to read that people are setting up EbNaut receivers, and hope that the signal may be useful. It's not unlikely that noise conditions will improve later tonight. 

All the best again,
Markus

-----Ursprüngliche Mitteilung-----
Von: Domenico IZ7SLZ <iz7slz.domenico@gmail.com>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: So, 9 Okt 2016 11:58 pm
Betreff: Re: LF: More EbNaut tests on 137490 Hz

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 <f5wk@mterrier.net> 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 ...

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