| Index | Thread | Archive | Mar-2001 | Archive | Send |
 |
  |
  |
   |
|
  |
|
doesn't always need an antenna tuner. I have the necessary devices to determine resonant frequencies of various elements. The antenna normally sits at about 90', pretty close to three other antennas on the same mast. When I crank the tower down to where I can reach the antennas, I'm standing on top of a two-story house with the antenna sort of drooping over about half the roof. I know the frequency will change as I get closer to the ground/house. What's the current "best practice" for tuning the antenna? I'm primarily interested in CW, and my ideal tuning would have about 1.5:1 SWR at 7 MHz, and the areas of interest to CW contesters within the range of my rather touchy amplifier (an Alpha 87A) without fiddling with an antenna tuner. For phone contests I plan on using an ATU. My manual does have a procedure, but it seems somewhat ambiguous. I have a very, very early model of the Magnum 620/340. By the way, it's a super antenna on 20. But on 40 I don't think I'm getting the best I can out of 3 elements. But frankly I'm not sure my expectations are realistic. It's SO good on 20 that 40 seems kinda bland. Help appreciated... Dick, K6KR K6KR@arrl.net -------------------------------------------- Force12Talk mailing list provided as a service by Force 12 Antennas, Inc. Force 12 Web site: http://www.qth.com/force12 Submissions: send to Force12Talk@qth.com To unsubscribe: send a blank e-mail to Force12Talk-leave@qth.com Force12Talk Message Archive: http://www.qth.com/force12/list/force12talk For problems with the list, contact n4zr@qth.com |
This Thread
|
This Author (Mar-2001)
|