PA0O ham radio

Still  best DX  in Europe  no transatlantic decodes yet many EU hams  active 630m few SWL reports  please more  SWL  in WSPR  ! last 2 weeks 200 unique decodes    showing my 475kHz WSPR landscape Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az  2014-12-04 23:22   PA0O   0.475624   -29   0   JO33hg   0.2   SV8RV   KM07ks   2042   142   2014-12-04 21:00   PA0O   0.475620   -29   0   JO33hg   0.2   SV8CS   KM07jr   2042   142   2014-12-04 19:40   SV3DVO   0.475742   -30   0   KM08uf   0.005   PA0O   JO33hg   2032   330   2014-12-04 21:00   PA0O   0.475621  ...

5-December 2014 For the moment the QTX behaves nice  at 24V about 4Amps All temperatures in the save zone.  No extreme heat losses meaning the efficiency is >80%  So RF power should be around 100  The output voltage is 400V tt  is about 115V effective and sinus shape at SWR 1: 2.5.  The antenna current shows about 30%  that is about the maximum i can get here I do not know the real current it is not calibrated but it will be about 2A now. The actual dead toll of IRF540 is 6 now. The last 2 blown up at switching in the 24V  The IRF540 specifies  36A  and 100V you would think a power supply would melt down first seeing  those impressive figures.   Possible the power supply 50000uF elco is causing a too high inrush current . ASP  as simple as possible this is the simple setup  added a 6A meter with 15mV drop using a shunt of Constantaan wire In fact I am almost back to wh...