Rik, all, So, as I understand it, on some ordinary night a MF station would/could run at least two software instances of JT9one instance set to decode 2 minute slow JT9, and the other instance decodi
Yes, and then wrap around to gamma rays and x-rays! Bests to all this holiday season. Jim H W5EST ehm... some time ago I wrote here that there were worries at the Pentagon :-)))) simply incredible! I
Re Claudios FB reference on measurements of atmospheric electric field daily, seasonally and over years: Listed below, see some references Im using to get acquainted with this area of communications.
Hi ELF folks, I think we should consider the possibility that Loomis sincerely believed that telegraphy without wires was possible but that his experiment was flawed. It might even have been finessed
Hi ELF, 'sky-current' actually unrealistic and than it all quite useless. Jim W5EST asks: If more signal is needed, would it help to augment the Inv-L with a longer top hat or big top-capacitance are
Hi ELF, Do KVs of ELF on a TX antenna offset or divert a tiny amount of atmospheric current entering the RX antenna? Suppose the atmosphere has equipotential surface(s) high in a an electrically resi
FB, Roman. BTW, I've wondered how one could write radio detection software to act like a coherer and improve upon its principle. The software would be a "swarm detector" working on the collective int
Hi Roman, Since software defined radios have replaced many functions in short wave receivers with software on a computer, why not envisage some software virtualization of the coherer. We've been trai
Claudio, thanks for the info. First, I looked over the Gerdien instrument paper. Interesting use of voltage change across a capacitor to measure charge mobility in air, instead of voltage drop across
Hi Bob, what was the RF current threshold on your coherer? I'm wondering if a virtualized coherer using the coherer principle could lower the threshold and respond quicker compared to a state of the
Claudio, This Alec Bennett 2007 Ph.D. thesis on Atmospheric Electricity you cited is quite interesting. Fine quantitative information and detector hardware photos and drawings, notes appended. I'll l
TU emails from Gaj Kumar and Bob Riese. RRR. Re google info, see various coherer designs: https://en.wikipedia.org/wiki/Coherer Principle of operation: microwelding in some coherer designs. Id think
Luis and Pascal, Heartiest congratulations on this 8783km transequatorial trek and persistence that yielded 2200m receptions, -25 and -28dB SNR at 0230 & 0236z last night! The requested w5est article
RR Stefan. FB on your 2011 & 2012 2200m achievements! Yes, re pre-sunrise involvement--the FR5DH receptions of EA5DOM 0230 & 0236z were about 25 and 19 minutes prior to FR5 sunrise 0255z (locally 6:5
