ONE IMPORTANT THING to consider when building an antenna system for 75 meters is efficiency. For inverted L or vertical antennas, an elevated radial system works best. Avoid commercially-made under-40-foot verticals; they’re very inefficient and produce weak signals. Make a wire vertical at least 60 feet in length, and elevate the feedpoint and radials 7 feet or more above the ground. At that height, even two radials give reasonable efficiency. Inverted Ls at about 150 feet in length and with elevated radials work well too (on both 75 and 160 meters), but require a simple matching network at the base. Dipoles and inverted Vs are efficient and effective too, but should be in the clear and have their centers at 45 feet or higher.
Listen: Liberty Net 3/7″]
Here’s a selection from, and commentary on, some of the concepts discussed during the Liberty Net this week:
• Another bank ripoff — and invasion of our privacy: Chase Bank now refuses to accept cash for deposit in relatives’ or family members’ accounts — you must use a check or money order only. (18 minutes)
• If we’re going to be forced to accept “homosexual marriage,” how long before we are also forced to accept plural marriage, or marriage to animals or objects? One you abandon Nature as your guide, there is no limit to the sickness. (36 minutes)