Hi, 16 2/3 Hz was used as it enables the older brush motors to have much less losses than if they were run at 50 Hz -they would behave much more as if DC was applied (easier to handle). However 50 Hz
Hi, A very interesting article. The London Underground (Metro) uses a low voltage 4 rail DC system. The 2 'live rails are balanced + and - with regard to the running rails. This system is a 'throw-ba
Hi Alan, I am certain you are correct, but this Tesco set is much much quieter than my Eton G3, which also has sync detection. There must be something else too in that Tesco £9 cheapie -but what is i
Hi David, what describe (jump to frequency as you tune a station in) sounds like a little bit of sophisticated radio electronics. It suggests that the unit employs synchronous detection, somtimes ca
This may seem VERY silly, but do you see your signals sometimes when not transmitting? If you do please let me know. Also does the received frequency / timings between transmissions get changed very
Hi All, NEVER connect a domestic PME 'earth' to ANYTHING 'earthed' outdoors. In reality it is a 'neutral' that's part of the 3 phase current carrying circuits. It's extremely risky, highly illegal, a
Hi, I do transmitting on ELF occasionally on a frequency of 1.6 Hz using a 'Tesla' antenna, giving a global range (screenshot example from Kiruna, Sweden, attached). It is likely to be a 'QSB' fade o
Hi Tom, It's good to get your Email. The QTH is London, and the main reason I replied was to explain that VLF signals also go through QSB. It seems the lower the frequency, the longer the QSB. I'm no
Hi Tom and Markus, This is the very reason I am reluctant to give out the Tesla TX radio method details. The counter-arguments are already rapidly building here against it, but I can assure you those
