Hi ULF friends, Since 14 UTC, a carrier is running on my ground loop antenna. I'm using my new PA and the new 12V/120 Ah LiFePo4 accu. The antenna current is 1.8 A ! About 250 W RF power. This could
...the carrier will stop at 15:40 UTC. 73, Stefan Am 01.09.2018 16:17, schrieb DK7FC: Hi ULF friends, Since 14 UTC, a carrier is running on my ground loop antenna. I'm using my new PA and the new 12V
After cycling through some combinations of filter and blanker settings, Bielefeld (DL4YHF) is now showing http://abelian.org/vlf/tmp/180901b.gif About 3.8 sigma, needs another couple of dB. -- Paul N
Hi Markus and Paul, Thanks for the efforts to watch out for the signal. I'm surprised that the signal appears at Bielefeld since the 900m ground loop antenna in JN39WI does not really point there, it
Here is a spectrogram showing the 2970 Hz signal in 3.8 mHz as received on the tree. The carrier reached an S/N of 27.57 dB in 166.7 uHz, -10.22 dB in 1Hz, -44.20 dB in 2.5kHz 73, Stefan Am 01.09.201
Hello Genosse Roman, Yes, i used the ground loop also on 2970 Hz (and on 2470 Hz and 1970 Hz). On sunday i also run a 2 hour long carrier on 1570 Hz starting 08:08 UTC. The post-processing is running
GA Genosse Funkamateur Stefan! Vielen dank! MNY TNX for info! Tell me pse, whats QRB on your DFCW-90 experiment and on 2970|1970 Hz? Best DX in your experiments! All russian LF looking to your experi
Hello Roman, The distance between RX and TX is 55.6 km in all these experiments, also on 2970/2470/1970 Hz. The report for 1570 Hz (the 191 km band) will follow today. Unfortunately this loop has its
Roman, ULF, Some more thoughts. This distance is in the far field for frequencies down to 870 Hz. In my view, it is out of the range of 'local tests'. Think about the GHz guys operating above 100 GHz
GM Genosse Roman, Well, in 2010/2011 i used a generator for the kite experiments. And meanwhile there are modern batteries available, the LiFePo4 technique. The generator is loud, it smells, it is in
