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Re: LF: More EbNaut tests on 137490 Hz

from [IZ7SLZ] [Permanent Link][Original]
To: [email protected]
Subject: Re: LF: More EbNaut tests on 137490 Hz
From: IZ7SLZ <[email protected]>
Date: Tue, 11 Oct 2016 16:37:44 +0200
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Many thanks Markus for the early decoding almost at limit.  Excellent !

Let me specify my tx working conditions: Analog SSB exciter (a vintage SAILOR S1301 exciter) with an external 10 MHz from GPSDO.
Audio tone is generated by sound card using SpectrumLab with samplerate calibration (1pps). Phase modulation is obtatined with a diode-ring  driven by EbNaut-tx via com port.
UT is synchronized by using the same 1pps from Jupiter GPS.
Transmission functions (ptt and pre-carrier) are managed by Spectrum Lab scheduler (always thanks to Wolf for his SL !).

BTW the 51 char. message has been now changed. Furthermore, just for check your "midnight  propagation gap",  i have added four more transmissions until 05.00UT of tomorrow (included).

Also Riccardo IW4DXW has planned some EbNaut transmission tonight. He will inform the group about parameters and schedule soon.

73, Domenico iz7slz





On 10/11/2016 2:37 PM, Markus Vester wrote:
...yes it is!

73, Markus


-----Ursprüngliche Mitteilung-----
Von: IZ7SLZ <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Di, 11 Okt 2016 12:41 pm
Betreff: Re: LF: More EbNaut tests on 137490 Hz

Hello Group,

considering the Stefan's request, i'm pleased to test again EbNaut today on LF with a 51 characters message, 8K19A code, 0.5 s/symbol, duration 22' 40''.
QRG = 137495.000 Hz

Scheduled UT: at hour, starting from 19.00 'till 01.00 of 12-10-2016 (included). Carrier will be "on"  5 minutes before the transmissions.

Two tests will be performed soon at 11.00 and 12.00.

Power in use : abt 100 mW ERP

Reports are welcomed. GL.
73, Domenico iz7slz


On 10/10/2016 11:06 PM, DK7FC wrote:
Hey Markus,

5 characters is boring! ;-) Can you try 30 chars or so? :-)

73, Stefan
     
...   


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