https://www.hamradio.com/detail.cfm?pid=H0-009470 lots of antenna conections and even groun ding port(would it replace necessity to ground antenna?) I don't want to drill multiple wholes in my semi basement concrete walls with stucco. I have full window(at ground level) next to desk. I think that MFJ MFJ-4603 Window Feed through Panel would be best solution. But the problem is I have double windows and the panel is for one window - so I would have to leave second window cracked open for cables. That would be security issue. Also, would reduce thermal efficiency( not really worried). Of course I could unscrew cables after each usage and close second window but it seems like a hastle. Anybody used this panel with double windows? Other alternatives.