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Rick,
One thought - I'd be very concerned about RF getting into the entire house system, especially stereos and tv's, depending on how your "radials" align with house wiring and how proximate they are. I had a dipole 15 feet off the roof of my house and at 1 KW, it wasn't a pretty sight...burglar and fire alarms going off, night lights blinking (the KW is on a separate 220 line), stereo speakers talking donald duck...the whole house rebelled. So now I am repositioning it out in the back pasture. The only alternative is QRP! 73, Greg, N6GK "Rick K2XT" wrote in message ... Regarding the potential hazards involved in using raised radials on a vertical - I'd be interested in comments from readers of this newsgroup. The antenna installation proposed is a vertical installed through the roof of a building. For many reasons it would be preferable to keep the radials inside the attic. My concern is possible danger due to the high voltages incurred at the ends of the radials. The antenna will be a SteppIR vertical for 40-10 meters with the base just under the roof, protruding through the roof. At the base will be a number of resonant radials fanning out throughout the attic. My concern is if this poses a fire hazard due to arcing (corona, whatever) at the ends of the radials. It may not be convenient to suspend the radials over their entire length or provide high quality suspended insulators at the wire ends. So what danger is there in letting radials lay on the floor of the attic, attached to the roof rafters, or even poked down inside the studs of the walls? I think we can assume the attic will be dry, except for normal Seattle humidity !! Rick K2XT |
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