I bought mine at a marine outfitting place. They're used to mark the guy lines ("stays"???) on sailboats. I believe they were considerably cheaper. No sign of deterioration after three winters in Mai
I've never modelled a stack before. I have successfully modelled yagis, and in this case, I want to model a stack of two Cushcraft A50-5S yagis, spaced 1/2 wavelength apart, with the lower yagi being
Sierra has those screwdriver antennas:at (http://www.cq73.com/FramePages/hsaSet.htm) 73, Bert N4CW/1 _______________________________________________ See: http://www.mscomputer.com for "Self Supportin
Being financially "challenged" and not having any reasonable sources of aluminum for antenna experimenting, I thought of using CATV hardline as elements (on perhaps a 6- or 10-meter yagi). I've got s
Given: (1) a length of hardling (1/4 wave, 1/2 wave, odd length, open-ended (2) from a 50-Ohm source, feed just the center conductor of the hardline, leaving the outer jacket unconnected to the sourc
Using EZNEC 2.0, I model a one-wavelength wire at 50 feet above real ground ("normal"), and feed it at 50% from one end. I get a pattern that has nulls off the ends of the wire. If I change the feed
No dimensions are given in the "Assembly Instructions" sheet that I have. Direct measurements will have to be made. Telrex wasn't long on details...,"If you have followed simplified assembly sheet ca
My D-40 exhibited a fairly narrow bandwidth when I used a ferrite-bead current balun, but when I replaced it with a coaxial solenoid choke, the bandwidth increased and the SWR exhibited the manufactu
I have a DX Engineering DXI-5P five-port remote coax switch system that I purchased new a few years back and never installed. I'm planning on installing and using it shortly to upgrade my antenna sys
I seem to recall an article from WAYYYYY back in QST, I believe, by Vic Clark, W4KFC describing his experience with a hilltop location. Sure, it's dated, but it may be worth digging up to see what su