Paul, If it's of interest, I'd hazard a guess that accommodation of > 8.3 kHz amateur signals by lightning networks could ultimately yield a net benefit to the lightning networks; I'd be happy to col
Yes, blanking factor is about 25%. Varies from hour to hour in the range 20% to 35% and not necessarily more at night. I combine E and H signals and steer the pattern, then apply blanking to the comb
I made spectrograms of W4DEX at 8971.1 Hz, Signal/Noise ratio http://abelian.org/vlf/tmp/w4dex_140605a.gif Amplitude http://abelian.org/vlf/tmp/w4dex_140605b.gif The amplitude scale is approximately
Hello Dex and Paul, My compliments to this great success below 9 kHz. Finally someone made it :-) This should rise some hope to do it the other way if the same professional RX setup is available in t
Hello Paul, Dex, and all, Congratulations to all involved - especially considering the noise level on LF at this time of year. Guess a lot of noise blanking was involved - do you have an estimation a
Going east to west is much harder, maybe 20dB harder, thanks to anisotropy of ionospheric reflection which is very significant at VLF. Mike Smith near Lynchburg, VA, has an excellent E-field rx at a
Hi Paul, Many thanks for the information. By coincidence, I am experimenting with an STM32F407 "discovery" board, which has a couple of fast A/D converters and a DSP-friendly instruction set (an ARM
Mike's rx was in Marlton, NJ at that time. It has moved twice since then. Now a bit further away but a much quieter site. Maybe it will need a kite transmission - night time. And perhaps a /P rx on t
Hi Paul, I remember you tried to get something of my transmission from the fixed antenna here in Heidelberg on Mike's side, also without success. Was there any RX improvement during that time on Mike
Congrats to both on this wonderful breakthrough! What do we know about Paul's RX system and Dex's antenna? Steve WEB - "The VE7SL Radio Notebook": http://members.shaw.ca/ve7sl PLEASE VISIT MY NEW BLO
WOW I never thought that this would be possible! 73 Warren On Mon, Jun 2, 2014 at 3:44 PM, Paul Nicholson <[email protected]> wrote: At 2014-06-01 10:00 UT W4DEX began a long transmission of GPS
At 2014-06-01 10:00 UT W4DEX began a long transmission of GPS locked carrier at 8971.000 Hz from 35.273N,80.371W. Between 2014-06-02 00:00 and 06:00 a carrier was measured at that frequency here in T
