Gas pipes are non-metallic I think? Not sure I like the idea of connecting many watts of VLF power into high voltage pylons or gas pipes. In the UK we would be locked up as suspected terrorists! Havi
Some years ago, we tried using a small loop to couple a Heyphone (4 W output on 87 kHz) into a running rail in a disused railway tunnel in the English Midlands (we had permission from the owners of t
Hi Jacek, Roger, VLF, I have an idea: Am 04.02.2011 19:00, schrieb Jacek Lipkowski: you would achieve much larger distances if you tried qrss with a better matched antenna. you can try this with over
What about a closed loop between two HV transmission line towers? [...] Has someone tried that before? :-) there was a vlf experiment done in the USA http://qru.de/w4dex-vlf.html , that used a big l
Jacek, Am 04.02.2011 23:58, schrieb Jacek Lipkowski: btw. i have an international gas pipeline nearby: http://en.wikipedia.org/wiki/Yamal%E2%80%93Europe_pipeline opportunity for dx maybe? :) At least
Hi Roger LF, On 5 February 2011 08:01, Roger Lapthorn <[email protected]> wrote: Gas pipes are non-metallic I think? You are correct Roger, the attached photo of my variometer is made on a piec
Warren, The transmit signal was coupled inductively into the rail using a standard cave radio resonant loop. The signal was recovered at the receiving end using a similar loop. If I recall correctly,
Thanks for feedback and questions from Rik, Chris, Mal, Stefan and others on and off this list. I'm still waiting for someone to explain to me why, if this is (mainly) conduction along metal pipes, w
Gas pipes are non-metallic I think? i think the high pressure pipelines are metallic. Not sure I like the idea of connecting many watts of VLF power into high voltage pylons or gas pipes. In the UK
Roger, Yes, this is the place to tell people about VLF work. Although the title of the reflector refers to LF, there is a lot of traffic about 500 kHz, and other frequencies when relevant. As these i
trying to couple to large structures is an interesting experiment, both for receiving and transmitting (only by induction of course :). think about power lines, phone lines (but unfortunately nowaday
Some years ago, we tried using a small loop to couple a Heyphone (4 W output on 87 kHz) into a running rail in a disused railway tunnel in the English Midlands (we had permission from the owners of t
