*Frequencies allowed:* 8.7kHz - 9.1kHz i wonder what would happen if you applied specifically for 8.0-8.990kHz (no frequency >9kHz). is expanding the frequency range above 9kHz a trick by OFCOM, so
I've set up a 2 temporary grabbers (slow connection so don't abuse it) DK7FC is clearly visible http://lipkowski.org/~grabber_vlf/ The QTH here is Warsaw/Poland KO02MD VY 73 Jacek/SQ5BPF
Nothing seen on Stefan's grabber yet, so most likely the kite is still down. right now abt 10dB S/N in Warsaw/Poland. 902km confirmed! Congratulations Stefan! VY 73 Jacek / SQ5BPF Attachment: dk7fc_
Using "GNU Fortran (SUSE Linux) 4.5.0 20100604 [gcc-4_5-branch revision 160292]" it does not compile. try this: http://www.lipkowski.org/~sq5bpf/vlf/wavevlf/wavevlf_ext2_unix.tar.gz it works under t
Jacek your report and rx setup is really good. My QTH is only abt. 60Km from Stefan away and I receive him not better then you. Thanks Marco, i am surprised at the results too. Stefan is more than 20
These is the final screenshots from the grabber, showing the whole transmission. More screenshots here (slow site, have patience :): http://www.lipkowski.org/~sq5bpf/dk7fc_20101002/ QTH is Warsaw, Po
Some others have set up grabber pages as well. Please publish them here! temporary grabber here (bad rx and unattended, bua maybe it will receive something :) http://www.lipkowski.org/~grabber_vlf/
This looks like a lot of trouble for no real practical purpose, other than maybe get a glimpse of a carrier an odd time on 8970 Kcs The possibility of a real time QSO on this band over any distance
Yes, I'm very interested, especially in the makefile since I'm having trouble invoking the GCC against those code. More than 30 years ago dealing with Fortran - on a block heating station named PDP-
[...] Regarding the cats' hearing, I can definitely confirm your observation. Our two cats didn't seem to be bothered by the transformer or coil noise at all. They were simply inspecting the hardware
Carrier on 9 kcs at times, someone tuning up it's probably intermod between MF radio stations (thay have a 9kHz spacing). add more lowpass filtering Mal, rumor has it, that you applied for the 9kHz
[...] I seem to recall that the earliest experimenters used far less sensitive circuits and devices. [...] it's also quite remarkable that once the range was limited mostly by receiver sensitivity, w
The signal was strong today at Warsaw/Poland KO02MD (odx 904km). Good job as usual :) Attached are the 8970 and 5170 screenshots. No 6470 reception unfortunately - i had to leave the grabber unattend
What's fascinating about this reflector is that I often get several replies to a posting and wonder what they are all about. Then some time later the original post arrives. Presumably the reflector
Unfortunately i only just got home, and couldn't change the grabber frequency. Stefan is clearly visible at 8970Hz since a bit after 12:00 UTC The S/N is abt. 15dB in 3.8mHz bandwidth in Warsaw/Polan
I will have my TX running on 8969.97 (+/- 0.03) today. attached please find the spectrum with 179uHz resolution for the last 2 days. i was trying to capture the transmission of Ossi OE5ODL (without
There is a good signal on 8970Hz indeed! I can see it in both 3.8mHz bandwidth, and in 179uHz bandwidth. In 179uHz bandwidth the signal has abt. 12dB S/N! This signal has a nice stable frequency. The
I will have my TX running on 8969.97 (+/- 0.03) today. Locator is JN88hl, power to the antenna is abt. 150W you're also visible in 3.8mHz bandwidth. well done Gerhard! what is the antenna, and what
Between 12 and 18 UT today, again Ossi's fieldstrength has gradually decreased on Stefan's grabber in Heidelberg (about 400 km), while it has increased for Lubos, Gerhard's and myself (all ~ 200 km).
