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Re: LF: EbNaut tonite

To: [email protected]
Subject: Re: LF: EbNaut tonite
From: Domenico IZ7SLZ <[email protected]>
Date: Wed, 23 Jan 2019 15:50:23 +0100
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In-reply-to: <CAL-VeeOifs30j0xTsdMS7o7ANfZs1TFx=Ubb3iP1CC6Wm2nRLw@mail.gmail.com>
References: <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <D0A37FCD090E4DAC97BD3FAA7CD78AD6@Rob64PC> <[email protected]> <[email protected]> <1UTCP1TTXz.GTBnkuWTAJs@optiplex980-pc> <1UTCP1tymN.HCrj4Hc5Ogz@optiplex980-pc> <CANA3B6V7agns9qEkz8W1ownEzgSLN+Tug3-ZC4H6dTLXPvivpA@mail.gmail.com> <8B74554DD9CC447AA7826347ACFA2369@DELL4> <CANA3B6Wp+TYR9WYqfHxVi4rLgHtRF29sAnTUSD4Djk_qJpEN8A@mail.gmail.com> <CAL-VeeOifs30j0xTsdMS7o7ANfZs1TFx=Ubb3iP1CC6Wm2nRLw@mail.gmail.com>
Reply-to: [email protected]
Sender: [email protected]
Hi LF & Ebnauters,

returning home after a trip, i did a re-play of the recordered audio of last nights.
I got some decoders of VO1NA and plenty of the 'local' stations here IW4DXW and DK7FC.


Riccardo ask for the phase diagrams (show_raw_sym by Markus); i have uploaded plots of IW4DXW, DK7FC and VO1NA in the folder

For a casuality, i got a message with the Alex RN7T parameters in a close frequency:
--------------------------------------------------------------------------------------------
2019-01-19_02:00:00 137544.800Hz N=3 T=8s 8K19A CRC=16 list=10000 sym=416 Duration=3328s
T_OFFSET=0.1s F_OFFSET=0.000Hz
found rank 8326 ber 3.6779e-01 Eb/N0 1.5 M -4.353520036e+00 ph 1 180,180,180,180 [QRL]
found rank 690 ber 3.6538e-01 Eb/N0 1.7 M -4.711310863e+00 ph 3 -150,-150,-150,-150 [QRL]
--------------------------------------------------------------------------------------------
Is the message right ?

73, Domenico IZ7SLZ





On Wed, 23 Jan 2019 at 05:02, Alex R7NT <[email protected]> wrote:
EbNaut enthusiasts,
I start before Sunrise in my QTH (abt 05:00 UTC)

QRG 137546,1 Hz
Coding 8K19A
CRC 8
8 sec./sym.
3 characters
duration 55:28
1st on 04:00 UTC  
73! Alex R7NT  136.73.ru    AWLF 136.73.ru/h_aw


вт, 22 янв. 2019 г. в 22:20, Riccardo Zoli <[email protected]>:

Jay, Rob, LF

QRG 137545 Hz
Coding 8K19A
CRC 8
3 sec./sym.
8 characters
duration 29 min. 36 sec.
no time delay
(1st on 1930 UTC, last on 0700 UTC)

Reports are welcome


All the best

73 de Riccardo IW4DXW



Il giorno Lun 21 Gen 2019, 23:03 <[email protected]> ha scritto:
Riccardo
 
Glad to hear you found the problem. Will await your announcement and look for your signal tomorrow night.
 
Jay W1VD
----- Original Message -----
Sent: Monday, January 21, 2019 4:13 PM
Subject: Re: LF: EbNaut tonite


Jay, Rob, Markus, Stefan, Joe, LF


Jay, thanks again for the decode: congrats for your rx setup.
And thank you so much for trying, Rob.

Here, the TP2 reference signal (not sufficiently filtered) overshot sometimes the quadrature divider (x4) causing that phase jumps. The problem is now fixed.

A new TX EbNaut session is scheduled for starting tomorrow evening.

All the best


73 de Riccardo IW4DXW







Il giorno Lun 21 Gen 2019, 13:20 [email protected] <[email protected]> ha scritto:
Riccardo
 
Corrected decode:
 
0300 Rank 0 car Eb/N0 2.3 Eb/N0 1.4 FBDECODE
 
Jay W1VD
 
 
 
----- Original Message -----
Reply-To: <[email protected]>
Sent: 1/21/2019 6:53:39 AM
Subject: Re: LF: EbNaut tonite

Stefan, Riccardo & EbNaut-eers
 
 
Stefan ... good copy throughout the night. Riccardo ... unfortunately only one decode to report. Markus noted a frequency error ... curious if propagation or NE0-M8T?
 
 
137545
 
2200 Rank 0 car Eb/N0 9.5 Eb/N0 9.2 RADIO GAGA
2300 -
0000 Rank 0 car Eb/N0 9.2 Eb/N0 9.3 RADIO GAGA
0100 Rank 0 car Eb/N0 6.0 Eb/N0 6.0 RADIO GAGA
0200 Rank 0 car Eb/N0 5.3 Eb/N0 5.9 RADIO GAGA
0300 Rank 0 car Eb/N0 6.1 Eb/N0 6.8 RADIO GAGA
0400 Rank 0 car Eb/N0 11.3 Eb/N0 10.4 RADIO GAGA
0500 Rank 0 car Eb/N0 3.7 Eb/N0 4.6 RADIO GAGA
0600 Rank 0 car Eb/N0 10.6 Eb/N0 10.2 RADIO GAGA
 
 
137547
 
0300 Rank 0 car Eb/N0 10.0 Eb/N0  FBDECODE
 
Jay W1VD
 
 
 
 
 
 
----- Original Message -----
From: DK7FC <[email protected]>
Reply-To: <[email protected]>
Sent: 1/20/2019 12:48:34 PM
Subject: LF: EbNaut tonite

LF,

Tonite:

f = 137.545 kHz
Start time: 20.JAN.2019  22:00:00.3 UTC (hourly, including 6 UTC)
Symbol period: 1 s
Characters: 10
CRC bits: 12
Coding 16K21A
Antenna current: 4 A
Duration: 24:32 [mm:ss]



73, Stefan
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