This morning I attempted to transmit from a small ferrite antenna. It consists of a number of 9 mm diameter ferrite rods, with 7 bundled in parallel. The bundles were stacked with overlap to ~ 35 cm
What's good about Markus is that there are no limits! Untiring this OM! Thank you Markus. 73: Jeff (F6CWN) Le 22/07/2018 à 13:32, Markus Vester a écrit : This morning I attempted to transmit from a s
Hi John, LF! The radioamateur experiment in France several years ago with 3.3 khz PSK31 communication in caves. http://f6kcz.free.fr/Actualites/2011/Carrieres%20Fleury/Carrieres%20Fleury.htm Profesio
Roman, Many thanks for pointing these out. Some aspects of the French experiment were also described in CREGJ 89 and 92. FERRA was also mentioned in CREGJ 89. John Hey (SK) would be delighted for his
Hi John! VY glad about that info was interested for you! Alexander RN3AUS make an experiments with 11 Hz here, but in near zone. Not so long distance. This is experiment and joy-toy, but no communica