Stefan, Joe well (apart from practical reasons like people tripping over it), you might just as well lay the (insulated) wire on the ground. From receive measurements with your earlier and shorter ea
Hi Markus, Right. But 8m gives a secure distance above ground regarding the visibility of the wire. 2.5m would work as well but then everybody can see it (easier). And some m above ground allows to u
Hello Mark (again) (sri for the 10000000s of emails from me tonite :-) ), Maybe interesting to know, i've made 40 km distance on 8.97 kHz in normal CW. Maybe 100km could have been possible if there w
Hello Mark, 200W in such a loop and 8.97 or 8.27 kHz, CW, my guess is that the distance is less than 2 km. But it depends on the type of the RX antenna (E or H field). 73, Stefan/DK7FC Am 25.06.2014
Stefan, yes, understood. If you want complete invisibility though, you could actually bury the wire in the ground, without negative effect on the magnetic field. Or cover it with fallen leaves etc. M
Mark, Tom, let me try to put some numbers to your question... Loop resistance: Wire diameter #8 AWG = 3.26 mm, skin depth at 8.3 kHz ~ 0.66 mm, AC cross section 6.7 mm^2, AC resistance 2.6 mohm/m, lo
Am 26.06.2014 02:06, schrieb Markus Vester: [...] And... if you want to go far, just forget about aural CW! This is only for the biggies like SAQ, radiating about 30 kW. Best 73, Markus (DF6NM) ..
