Hi Paul, Actually there is some time to try something during the daytime tomorrow. If you like, we could try a long 4K19A message. I prepared something: f = 8270.1000 Hz Start time: 04.November.2017
Hi Stefan, as a pleasant surprise, your signal is now well visible on my suburban grabber in Nuernberg. I would be interested in a continuous carrier tomorrow to see whether propagation holds on in d
2nd transmission aborted at 8:40 UTC :-( Antenna current dropped by more than 50 mA due to heavy rain... 73, Stefan Am 03.11.2017 23:58, schrieb DK7FC: Hi Paul, Actually there is some time to try som
message start delayed by 15 minutes... Am 11.11.2017 12:11, schrieb DK7FC: tonite, another attempt: f = 8270.1000 Hz Start time: 11.November.2017 17:00:00 UTC Symbol period: 6 s Characters: 300 CRC
What a terrible rainy day here! Since several days there is no sun. The tree grabber shut down because the accus are quite empty! This didn't happen since more than 9 months now. The 300 character me
Great. So far no result from last night, although the decoder is still working through a full phase search with 6Meg list size (49 Gbyte RAM). Last night was quiet. Another night should do it if the
Hi Paul, Wow, 49 GB :-) Here it took 4600 seconds for a full phase search and a list length of 200. 6E6 list size? The calculator page says 325804 is optimum. Wouldn't it be more promising to try a s
Oh, it's complicated with longer messages. It's that pesky 0.3 bits per character of redundancy. It makes the optimum list length depend on S/N. With the weakest signals, the optimum becomes much lon
RR, understood. Am 12.11.2017 17:45, schrieb Paul Nicholson: The fact that your message didn't decode with a 1E6 list and uniform phase search told me that it was going to be unlikely to decode at al
Copied "HELLO PAUL AND THE REST OF THE LF GROUP! WELL, THIS IS THE NEW LONGEST MESSAGE TRANSMITTED ON VLF. THANKS TO ALL STATIONS WHO PARTICIPATE IN THE EXPERIMENTS SINCE 2010! VLF IS A GREAT REAGION
Hi Paul, VLF, Great! I think this is the longest EbNaut message ever, so far ;-) Thanks for the decode. We needed 3 days but the right 2 days would have been fine as well. Did you try to decode the 3
Your email client has changed the spacing. There is a double space between ALL and STATIONS, and another double between D and 73. md5 sum is bd9ebb682484d1cf784625824ef749fd Yes, no result but I mig
Attached screenshots show the unspread spectrum and the time-domain correlation for DF6NM, Nov. 12-13th. Here are Eb/N0 estimates derived from the correlation: date DF6NM DL0AO (west) Nov. dB dB 11-1
Hi Markus, Interesting, i didn't expect such a difference. It would be interesting to see how the Raspi with the octo-soundcard would perform at DL0AO when all 3 antennas were used. That could make t
