[...] BTW, exactly what is the HAARP system really about? Is the US trying to meddle with the weather, alter the course of global warming, or just thinking up another stupid way of wasting their taxp
I think one of the problems with detection in the near field was, that I am transmitting an H-field and DD7PC uses an E-field antenna. I guess that was the problem here. You've touched upon a common
yesterday I tried to reproduce Rogers experiments with VLF transmissions over the local gas and water mains. I connected one wire to the equipotential busbar of my house. The other wire is connected
All very interesting, i cannot stop thinking about ;-) Your plot_80km.png tells me that in 200 km distance (pretty close to DF6NM/DJ2LF/DK6NI/DJ6LB), 2500 Hz is the most suitable frequency. i'm not
The QRN on the Dreamers Band is as low as never before since i am monitoring the band. My DFCW-60 window is almost dark in the moment. [...] there seems to be increased absorption right now, maybe du
Do you mean LF and VLF can be compared in that situation? I remember Scott/VE7TIL has reported that LF was totally down before some weeks but he received the EU MSKs very well anyway. this was just a
Stefan's signal is great as usual in Poland both in 3.8mHz bandwidth, but also in 30.5mHz bandwidth - about QRSS 60, in the file dk7fc_20101023_30mHz.jpg, probably even higher speeds are possible. VY
There seems to be a tendency that E field antennas are performing better than loop antennas in a noisy region and are mostly better than a long wire antenna. actually longwires are good as well, prov
this is a nice plot showing field strength vs frequency and distance, calculated from Piotr's code. please notice that for a given distance there are two frequencies which yield the highest field str
I just saw that the signal on 8970 Hz is strongest at the end, means the last dash of the "M" while the 1 hour transmission is rather weaker. But my ERP must have been higher during the 1 hour transm
[...] I think this is due to the cooling fan in the laptop cycling on and off every minute or two, frequency modulating the soundcard clock by several millihertz due to the changing temperature. I th
[...] So I can find just one conclusion: All of you who could reveive Stefans transmissions must be living more or less on the countryside. [...] i live in the middle of Warsaw, yet i can receive Ste
Make it 8000Kms :-) sent it to the list. attached is a plit of field strength vs frequency at 8000km distance, and at 5000km for comparison jacek Attachment: fs_8000km.png Description: Binary data A
Stefan, DK7FC stopped now the transmission on 8970Hz and QSY to 6470Hz. also fb here! ODX=904km VY 73 Jacek / SQ5BPF Attachment: dk7fc_20101023_6470Hz.jpg Description: JPEG image
What do people think is the simplest, lowest cost, way of generating a stable 8.970kHz frequency that does not require a PC when running? [...] - your transceiver transmitting on 8.970MHz into a dum
Danielle, Like Stefan said - try to put a simple e-probe antenna on the roof. i use a PA0RDT mini-whip modified for better low frequency response with 50cm of wire as the antenna, and some lowpass fi
Working fine; test and examples too. Had to replace "f95" by "gfortran" in the makefile. maybe i should put some crude autodetection hack in the makefile? Thanks a lot! thank Piotr - it's his code,
