Hi Rob,

unfortunately none of the 30 character trials could be decoded here. Correlation of the received waveforms against the known message showed that best Eb/N0 was -2.9 dB for the 4:00 transmission. All other hours were significantly further down and had different phases, so that blind stacking wouldn't have helped either.

Best 73,
Markus (DF6NM)


-----Ursprüngliche Mitteilung-----
Von: jrusgrove <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Mo, 26. Mrz 2018 2:00
Betreff: LF: K3RWR LF EbNaut Trial #2

Rob, fellow EbNauteers

 

Confirmation that Rob's transmission is working properly ... note BER 0.0%.

 

 

ebnaut-rx V0.8
input file C:\EbNaut\K3RWR\03252229.wav
sample rate 2.314815 per second
rx frequency 800
file start time 2018-03-25 21:59:55.230
polynomial 8K19A
crc size 18
number of chars 30
block size 198
symbol period 2.000
number of symbols 1728
start offset 6.498
freq offset 0.000000
cores 2
list length 20000
skipped 6.479999 seconds to start
initial reference phase -39.0
---------------------------------------------
found K3RWR_EBNAUT_LF_TRIAL_MAR_2018
list rank 0
reference phase 180,180,180,180
carrier S/N 48.50 dB in 289.4 uHz, 13.11 dB in 1Hz, -20.87 dB in 2.5kHz
carrier Es/N0 16.12 dB
carrier Eb/N0 26.17 dB
info bit period 20.21 seconds
symbol error rate 0/1728 = 0.000 %
Shannon capacity 9702.7 bits/hour
Shannon efficiency 1.8 %
symbols file C:\EbNaut\K3RWR\03252229-symbols.csv
elapsed 12 seconds

 

Jay W1VD