Re: LF: JT9-5 decodes in km07ks

[Rik Strobbe <rik.strobbe@kuleuven.be>]

Hello Markus,

nice copy on N1BUG, this might be a new distance record for Paul.

Thanks for your help with the JT9-2 and JT9-5 resampling.

Lifting the frequency restriction on TX is "peanuts", but on RX I would need to implement frequency conversion in SpecLab style.

I will have a look to that (maybe I should ask Wolf for advice).

73, Rik  ON7YD - OR7T

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Van: owner-rsgb_lf_group@blacksheep.org <owner-rsgb_lf_group@blacksheep.org> namens Markus Vester <markusvester@aol.com>
Verzonden: zaterdag 29 december 2018 10:28
Aan: rsgb_lf_group@blacksheep.org
Onderwerp: Re: LF: JT9-5 decodes in km07ks

 

Thanks to Rik for the software, and to Spiros and Dionysios for their reports. This is what I picked up using JT9-2

18-12-28 21:38 2038 -25  0.1  648 2  CQ SV8CS KM07        
18-12-28 21:40 2040 -25  0.1 1200 2  LA3EQ JO28XJ         
18-12-28 21:42 2042 -26  0.1  648 2  CQ SV8CS KM07        
18-12-28 21:44 2044 -26  0.2 1200 2  LA3EQ JO28XJ         
18-12-28 21:48 2048 -25  0.1 1250 2  LA3EQ JO28XJ         
18-12-28 21:52 2052 -25  0.2 1250 2  LA3EQ JO28XJ         
18-12-28 21:56 2056 -25  0.2 1250 2  LA3EQ JO28XJ         
18-12-28 22:00 2100 -28  0.3 1250 2  LA3EQ JO28XJ         

and later JT9-5:

18-12-29 02:30 0130 -34 -0.7  615 5  VVV N1BUG 5          
18-12-29 02:40 0140 -34 -0.6  615 5  VVV N1BUG 5          
18-12-29 03:30 0230 -35 -0.6  615 5  VVV N1BUG 5          

As my LF transceiver needs to be parked on 135.5 kHz I am always struggling with audio frequency restrictions in WSJT, WSPR and JT-9 software. My workaround are frequency conversions in two separate SpecLab instances for RX and TX, connected to the left and right channels of a single VB-Audio virtual cable instance. However there is a noticable latency in this process.

Best 73,
Markus (DF6NM)


-----Ursprüngliche Mitteilung-----
Von: Dionysios Vlachiotis <sv8rv@otenet.gr>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>; rsgb_lf_group <rsgb_lf_group@yahoogroups.co.uk>
Verschickt: Sa, 29. Dez 2018 8:39
Betreff: LF: JT9-5 decodes in km07ks

245 -28 -0.4  650 5  CQ DF6NM JN59        

2255 -27 -0.4  650 5  CQ DF6NM JN59        

2315 -27 -0.5  650 5  CQ DF6NM JN59        

2325 -24 -0.3  650 5  CQ DF6NM JN59        

0035 -23 -0.2  650 5  CQ DF6NM JN59        

0045 -21 -0.3  650 5  CQ DF6NM JN59     

 

73 de SV8RV

Zakynthos isl. GREECE (km07ks)

-----Ursprüngliche Mitteilung-----
Von: SV8CS-Spiros Chimarios <zante@otenet.gr>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: Sa, 29. Dez 2018 5:56
Betreff: LF: SV8CS SlowJT9

Good morning.

Decoded only DF6NM during the night (JT9-5) – 136 KHz.

 

2245 -30 -0.4  650 5  CQ DF6NM JN59        

2255 -29 -0.4  650 5  CQ DF6NM JN59        

2315 -27 -0.4  650 5  CQ DF6NM JN59        

2325 -26 -0.4  650 5  CQ DF6NM JN59        

0035 -21 -0.6  650 5  CQ DF6NM JN59        

0045 -20 -0.4  650 5  CQ DF6NM JN59 

 

73, Spiros/SV8CS