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Re: LF: Ebnaut tonite from JN80

To: [email protected]
Subject: Re: LF: Ebnaut tonite from JN80
From: DK7FC <[email protected]>
Date: Mon, 28 Jan 2019 15:10:33 +0100
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Hi Rob,

I didn't prove that statement, but, someone said that this method gives 6 dB worse results than the other method (exporting a FFT by a text file and then convert this using Markus' tool into a wav file). I'm sure that Jay is using the second method, like i do as well.

73, Stefan



Am 28.01.2019 14:56, schrieb Rob Renoud:
Domenico,

The single file that I saved for last night was the decimated FFT file (.wav file) using the Spectrum Lab Wave Recorder.  The file covers the entire RX session starting at 2059 UTC and runs until I stopped recording about 1030 UTC this morning (sample rate: 10.766602/sec, RX freq: 1000.000 Hz (137545.000 Hz RF center frequency), File Size: 3.77 MB).    

Will this file work for you?

73,
Rob





On Jan 28, 2019, at 07:29, Domenico IZ7SLZ <[email protected]> wrote:

Thanks dear friends Jay and Rob for the your efforts on trying to decode my small signal.

Is it possible to have from you the Spectrum Lab raw files with the info needed to convert them (using DF6NM's program)  in 'wave' format (i.e. sample rate, FFT lenght, center frequency) or can you share the files already converted in 'wave' format ?
I would like to attempt a decode using vlfrx-tools: with diagnostic tools -f15 -f16 -M 'IZ7SLZ' i will look for the missing dB's.
Thanks in advance.
Domenico IZ7SLZ

On Mon, 28 Jan 2019 at 13:18, Rob Renoud <[email protected]> wrote:
Domenico and Riccardo,

Riccardo:  1 Decode at 2300 UTC
Rank 0; cEb/N0 3.2; Eb/N0 0.9; MSG 73, BER 38.7; Ref Phase 0,0,0,0

Domenico:  Sorry, no decodes.

73,
Rob

On Jan 28, 2019, at 06:06, "[email protected]" <[email protected]> wrote:

Domenico
 
Sorry to report no decodes ;~( .
 
Jay W1VD
 
 
----- Original Message -----
From: Domenico IZ7SLZ <[email protected]>
Reply-To: <[email protected]>
Sent: 1/27/2019 1:32:37 PM
Subject: Re: LF: Ebnaut tonite from JN80

Rob, Jay, LF

Another attempt tonight. Same parameters (6 char, 3 s/sym, crc16, 8K19A)
Qrq is 137545.2 Hz 
(The script is ok now!!)
Every hour from 21.00 utc 'til 07 utc of tomortow)

73, Domenico IZ7SLZ 

On 27 Jan 2019 15:25, "Rob Renoud" <[email protected]> wrote:
Domenico,

No decodes as you were outside of my receive range.

73,
Rob

On Jan 27, 2019, at 05:27, Domenico IZ7SLZ <[email protected]> wrote:

LF,
my previous  transmission's announcement was wrong.

Since i have run an obsolete setup file, the transmissions succeeded but on 137540.0 Hz  (instead of 137545.2 Hz) with 6
char, 3 s, 8K19A, CRC16.
I hope that receiving attempts can be done anyway. Sorry for the trouble.

I will send now, via daytime propagation, an 'hope' message on 137540 Hz, 38 characters 0.5 s/sym 8K19A, CRC16
at 10:30, 11:30, 12:30, 13:30.

Finger crossed also for that situation !

73, Domenico IZ7SLZ







On Sun, 27 Jan 2019 at 00:24, Domenico IZ7SLZ <[email protected]> wrote:
Yes Markus, LF

Confirm: 6 characters.

Apologies for the clerical error and thanks Markus for the advice.

73, Dom IZ7SLZ

On Sat, 26 Jan 2019, 22:49 Markus Vester <[email protected] wrote:
Hi Domenico,

6 characters I would guess?

73, Markus


-----Ursprüngliche Mitteilung-----
Von: Domenico IZ7SLZ <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Sa, 26. Jan. 2019 19:55
Betreff: LF: Ebnaut tonite from JN80

LF, Ebnauteers

An attempt to pass my complete call sign with EbNaut on 137545.2 Hz.

5 char, 3 s, 8K19A, CRC16, duration 28', every hour from 21.00 UT to 08.00 UT of tomorrow.
73, Domenico IZ7SLZ

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