Hi Bill, This is an unimportant point for results, but something that always "bugs" me. RF transformers and cores get hot because of flux density and high loss tangent in the material, they usually r
How do the 1.8-30 or 5.0-30 MHz antennas work in comparison to other wire antennas or are they just a fancy dummy load with wires attached? Anyone out there ever used one? Thanks in advance. Dave. --
They are fancy radiating dummy loads. If you want the same thing, save money and put up your own dipole. Run two cables to the feedpoint, attaching them both in parallel. Feed one, and attach the ot
Author: Barry Oliver" <barryo@msn.com (Barry Oliver)
Date: Tue, 29 Sep 1998 08:37:57 -0700
What would you suggest in it's place given: 1. Less than 100 feet long. 2. Covers 1.8 - 30 Mhz. 3. No antenna tuner. 4. Feed it with coax. 5. Put it up in an afternoon with a couple of poles. 6. $200
PURE CERTIFIABLE JUNKKKK!!!!! Barry WB6LDL -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesting.com Administrative requests: towertalk-REQUEST@contesting.com P
Hi Dave Save your money! They don't work at all. They make a great match to the rig, but that's about all. Spend the money for a good parallel tuner and put up a wire with tuned feeders and you'll be
Hi Barry. I've heard some good things about the Carolina Windoms. They are like a parallel dipole in a way and work pretty well. 73 Tom W7WHY -- FAQ on WWW: http://www.contesting.com/towertalkfaq.htm
What would I suggest??? Something that works! I tried one of those at a visit to a friend's apartment in Taipei. The bands sounded totally dead; I barely heard a watery VK8 on 20m SSB and nothing on
But the Windoms need good ground to do really well. Better Barry put up a wire doublet: two lengths of wire, maybe 48 feet long each, as he can not exceed 100 feet total length. Feed with whatever le
I'd eliminate requirement #3. Then, I'd put up a 100' doublet, and feed it with open wire or 450 ohm transmitting twin-lead. Run the open wire right to the house, then use a balun before going inside
I like AA4LR's solution, though I'd try it without the balun at the house first, and I'd droop and/or dogleg as much wire as possible off the ends and give that tuner a fighting chance on 160m! 73,
Barry, If running low power, I'd vote with the others and build a homebrew antenna tuner. You can have a very versatile and efficient system for far less than $200. If you're keen on high power and a
I can contribute a suggestion. Bill and Dave are right about a multiband doublet. They can and do work well. Make a doublet and feed it in the center with ladder line. Transition the ladder line to
Let me add something to this. While using two runs of coax will work as described, I would not recommend small coax such as RG-58, nor would I recommend any coax using a foam or air dielectric. Why?
I've been using a full-wave 75 meter horizontal loop for about 6 years now. It works well on all HF bands from 80 to 10; on 160 it's a little finicky but I managed a cw contact or two. It's strung th