Topband: End Fed Twin Lead Marconi Antenna

[Lee K7TJR]

Steve said,  Is the UNUN approach better or 
worse or about the same as the reactive antenna with series capacitor 
approach?  

I think the answer to your question depends entirely on the quality of your unun or matching components. I have a 25+J0 vertical that is matched with a coil and capacitor. The coil is optimized for Q by using proper dimensioning. The capacitor is an old (WW2 surplus) transmitting mica of 2000pf. I have checked this matching unit for any temperature rise after running 1Kw plus for hours in contests. It wont even melt the snow around it. No detectable temperature rise at all which should mean LOW losses. I have not tried ferrites in this application but in other applications have seen temperature rises from their losses. The unun specs should be revealing.  As always YMMV  
 Lee K7TJR Oregon