Hello Scott, there is only one way to find out ;-) GL on 33km 73, Rik ON7YD - OR7T ________________________________________ Van: [email protected] [[email protected]
Hello Piotr, Stefan, Scott, based on 6.5mm wire diameter and a skin depth of 0.925mm I come to an effective area of 16.2mm and thus a resistance of 0.174 Ohm for 100m wire (based on a resistivity for
Hi Stefan The mains has just to supply the losses. So the critical parts are the FETs and the loop wire diameter. I think 100 A rms is a problem for most loops. But i would give it a try. Even the
Hello Markus, VLF, Am 22.03.2011 12:49, schrieb Markus Vester: Jim's small VLF loop example (0.1 + j 2.2 ohms) had a Q of only 22, ie. 1/Q = 4.5% of the energy is lost per cycle. So the total power c
Hi Stefan, you are raising the interesting question of how important it is to resonate the antenna. I think it boils down to a comparison of the amplifier efficiency versus the Q factor of the matchi
Stefan, have a look here: http://www.seas.gwu.edu/~ecelabs/appnotes/PDF/techdat/CCCofCC.pdf According to this document for a single 2 AWG copper wire in open a current of 170A will cause a temp rise
Wow, nice! Rik/ON7YD, now its your turn again: What will be the ERP when running 100A in that wire? I think 100A is realistic on such a wire. Skin depth should be 0.9 mm. So the effective conductor a
Stefan Schäfer pisze: Wow, nice! Rik/ON7YD, now its your turn again: What will be the ERP when running 100A in that wire? I think 100A is realistic on such a wire. Skin depth should be 0.9 mm. So the
Hi Rik / Piotr Thank you for taking the time to consider this and provide some very useful information. I'm going to tackle this project in stages: 1) Build a smaller h-bridge TX say on the order of
Hi Piotr, Rik, Scott, VLF, Tnx for the interesting discussion! Well, 165 uW is quite low for that input power but we have expected that it's even worse than a vertical. But the effort is much lower a
