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Re: LF: sending EbNaut with SL on 137485.00 Hz

from [Markus Vester] [Permanent Link][Original]
To: [email protected]
Subject: Re: LF: sending EbNaut with SL on 137485.00 Hz
From: Markus Vester <[email protected]>
Date: Sat, 16 Apr 2016 16:42:58 -0400
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In-reply-to: <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
Domenico,  I saw some pieces of carrier and got a couple of all-asterisk decodes at 16 and 16:30 UT, but no real messages.
 
73, Markus (DF6NM)
 
 
-----Ursprüngliche Mitteilung-----
Von: IZ7SLZ <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Sa, 16 Apr 2016 5:23 pm
Betreff: Re: LF: sending EbNaut with SL on 137485.00 Hz

Thanks Markus for advices,

i'm workaround on the settings without success till now.

Some Ebnaut's  (13 char, 0.5s) again every 30' from 15:00U to 17:30U. This time with my traditional method i.e. ring modulator driven by EbNaut-TX with the  RDF phase locked loop. 

73, Domenico




On 4/16/2016 1:23 PM, Markus Vester wrote:
Hi Domenico,
 
on the opds spectrogram there are currently two discrete peaks on 137484 and 137486 Hz, plus some weaker ones spaced at 1 Hz intervals. Thus it seems that you are modulating with a regular "101010..." sequence rather than an EbNaut message?
 
Best 73,
Markus
 
-----Ursprüngliche Mitteilung-----
Von: IZ7SLZ <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Sa, 16 Apr 2016 11:41 am
Betreff: LF: sending EbNaut with SL on 137485.00 Hz

Hello LF,

i want to test this Wolf's Spectrum Lab feature

http://www.qsl.net/dl4yhf/speclab/EbNaut_Rcvr.htm#sending_ebnaut_with_SL

and i'm currently sending an EbNaut message on LF (13 characters,
0.5s/bit, 8K19A) each XX:00, XX:30. Last transmission at 12:00 UT

I'm using a non-linear PA so i want to check if SL MSK modulator can help.

I want also check if, using SL scheduler, there are no delay in the
activation time of the EbNaut sequence.

Thanks for the attention.

73 and good we.

Domenico, iz7slz 
 
 
 

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