I have been using my shunt fed tower for 160 with satsisfactory results. I have between 20 and 30 radials of about 130 ft. I recently added a second and separate shunt feed for 80 meters and plan to
Several references, including the ARRL Antenna Handbooks, advise using more radials rather than longer radials, at least until reaching about 50 in number. 73 de WOØW Howard Klein wrote: I hav
Howard, If you're going to add some set number of additional radials, without question, adding more 130' radials would be more beneficial than adding 65' radials. For a fixed number of radials, longe
James: Any chance K3LC's article is available at a web site for downloading? Carry on BillH _______________________________________________ See: http://www.mscomputer.com for "Self Supporting Towers"
Google it. It's on the web. 73, Les James: Any chance K3LC's article is available at a web site for downloading? Carry on BillH 65' wire, there or cutting an Weather questions _______________________
Thanks for the Heads Up. Found it at:http://www.ncjweb.com/k3lcmaxgainradials.pdf Carry on BillH _______________________________________________ See: http://www.mscomputer.com for "Self Supporting To
satsisfactory results. I added a second additional radials. to ~65 ft or ~130 Every actual measurement I've seen has indicated when more than a few radials are used adding short radials between long
The short answer to your first question: "how do I tell.." is that you can't, at least not easily. So you're left with some systems engineering kinds of questions. 1) You could measure your antennas
the radial system time and work of Anything more than 50-60 1/4 wl radials is largely a waste of time and money. 100 radials give an insignificant improvement only when they are pretty long. over a
I'd just pull in 40-60 1/4 wl radials maximum or as many as I could as long as I could and call it a night. All this planning and worry over something that can't be easily and accurately modeled, mea
Mass won't help for RF. You're looking to enhance conductivity over the ground surface area surrounding the tower, normally done with radial systems. Jim W9TM ________________________________________
mass may You need electrical mass Doc (low impedance) or electrical inertia, not physical mass. The job of a radial is to spread the voltage and current around. By definition that must include elect