Excellent! 73, Markus (DF6NM)



------ Originalnachricht------Von: Alex KDatum: Mo., 6. Nov. 2017 16:51An: 
[email protected];Betreff:LF: Re[2]: VLF: EbNaut message over 2877 
km, DK7FC to RC4HAAHello VLF, Stefan, Andrew!
Fantastic achievement! Congratulations to Stefan and Andrew!
Very high Eb/No for this distance!

73!!

        Понедельник,  6 ноября 2017, 18:50 +05:00 от DK7FC >:
        
                                                                              
PS: The RX at RC4HAA is a 100m long wire with a passive RC filter andan 
isolation transformer, i.e. no preamp is used. So it is a pure Efield RX 
hanging in the middle of a city with a population of > 1million people.

Am 06.11.2017 14:34, schrieb DK7FC:  Hello VLF group and RC4HAA team,
  
I am glad to report about the successful decode of my 1 characterEbNaut message 
on the VLF RX site at RC4HAA.
  
This is a land path distance of 2877 km,  
http://k7fry.com/grid/?qth=JN49IK00&from=LO53CF34
  
So far the best DX between Germany and Russia below 9 kHz.
  
It is my new personal ODX on VLF (the old ODX was just 4 km shorter).
  
A screenshot of the decoder result as well as the log file is attached.The 
unexpected good SNR suggests that even longer messages are possiblewithin a 
single night. Also we need to consider that it was a verynoisy night again, 
with thunderstorms in Spain and Italy.
  
A new message announcement will follow soon, next time i'm trying 2characters.
  
73, Stefan
  
  
  
Am 05.11.2017 17:59, schrieb DK7FC:      VLF,  
    
Tonite i'm trying to transfer a 1 charcter EbNaut message to RC4HAA:
    
    f = 8270.1000 Hz
Start time: 05.November.2017  16:51:00 UTC
Symbol period: 180 s
Characters: 1
CRC bits: 6
Coding 8K19A
Duration: 12h 
Antenna current: 600 mA
    
If someone else wants to try, dont hesitate...
    
73, Stefan