Hi Jacek, VLF,
from previous successful DK7FC decodes, it looks as if you
might also be able to receive a ~10 dB weaker signal from here
(10 uW EMRP). Apparently the rain has ended now, so I would
like to try an overnight EbNaut transmission with only two
characters:
Frequency: 8270.0333333 Hz,
2 characters, 8K19A, 18 bit CRC (!),
90 s symbols, message duration 9:36 hours,
start 2017-02-18 19:00 UT, end 4:36 UT (Sunday)
The 1/30 Hz frequency offset has been chosen to avoid mutual
interference with the announced DK7FC transmission on 8270.1
Hz: With the frequency spacing being an integer multiple of
both symbolrates, and synchroneous bit timing, the symbol
waveforms should be orthogonal because the "other"
signal always undergoes a whole number of 360° cycles during
the decoder's symbol integration interval.
Best 73,
Markus (DF6NM)
-----Ursprüngliche Mitteilung-----
Von: Jacek Lipkowski
<[email protected]>
An: rsgb_lf_group
<[email protected]>
Verschickt: Di, 14. Feb 2017 17:23
Betreff: Re: LF: Re: DK7FC EbNaut message on 8270.1 Hz decoded
nr Moscow by RN3AUS
found rank 0 ber 3.0469e-01 Eb/N0 10.7 M -1.697070885e+01 [XX]
ps [ 0 0 0 0 0]
Switched the message to XX (sent to Stefan off list), so i don't
spoil
