Hi VLF, In a few hours, an EbNaut transmission is planned on my ground loop antenna. TX frequency will be 5170.1 Hz. A 1 hour carrier transmission will be done earlier. The exact start times will be
VLF, The carrier is now running since 09:31 UTC at 5170.1 Hz. Actual antenna current is now 2.81 A at 545 W RF power. The EbNaut message will start at 10:30:00.3 UTC. Measured DC resistance was just
Yay! Now at 9:40, we are getting strong peaks at DL0AO: 25 dB in 3.8 mHz on E-field, and 20 dB on the E-W earth loop. Good luck! 73, Markus --Ursprüngliche Mitteilung-- Von: DK7FC <selberdenken@poste
Excellent signal indeed. The spread-out EbNaut message and your DFCW-90 greetings are perfectly visible on the DL0AO grabber: https://vlf.u01.de/ 73, and thanks for the nice activity! Markus (DF6NM)
Enormous signal here - http://abelian.org/vlf/tmp/190316a.png S/N 33.6 dB in 278uHz, -2dB in 1Hz, -36dB in 2.5kHz. Decoded rank 0 BER 8.9% constant reference phase. carrier Eb/N0: 10.3 dB carrier S/N
Hello Markus and Paul, VLF, Many thanks for the feedback. What a great result! Paul, after the EbNaut transmission i sent '73' in DFCW-90, which is a typical mode for LF operation. Do you see the mes
A perfect and obviously correct decode from DL0AO. Eb/N0 from EW earth loop: 12.3 dB (carrier), 12.3 dB (symbol err.) Eb/N0 from E-field: 12.1 dB (carrier), 11.9 dB (symbol err.) Eb/N0 from cardioid
Hello Markus, VLF, Thanks again for your efforts. Probably your result is correct :-) And your antenna mixing at DL0AO seems to work well. Also thanks to the DL0AO VLF crew for keeping the system on
