I've come into possession of a spool of several thousand feet of solid #24 bare copper wire. Can I use it for radials? What power level could I run with it? 73, Jerry K3BZ ___________________________
I homebrewed an insulated base using three large ceramic insulators obtained for $20 from a local scrap yard. They likely came off some power company transformer. Each is about 6-8 inches diameter an
I use NiMH batteries in my MFJ269, charging with the wall charger that came with the instrument -- it charges them fine without having to remove from the box. 73/Jon AA1K ____________________________
I have had to do this by necessity a couple of times -- because of limitations of the property or buildings intervening -- and never had any problems. 73/Jon AA1K www.aa1k.us ________________________
Rich, My 100-foot, Rohn 25, series-fed vertical for 160 meters (with parasitic radiators) sits amid a grove of about 25 loblolly pines. They are about 50 feet high. Beyond them is some yard area, 30-
Gary, There is lots of info in the Towertalk archives on elevated guy posts. I started using these at my Bear, Del., QTH around 1981. Those were 4-inch steel pipes filled with concrete, with about 5
My Tic Ring Rotor has been working fine for a couple of years, turning a HyGain Explorer 3-el 40m yagi. I last used it a couple of days ago. This morning when I turned on the control box, the meter i
Dave, Thanks for the tips. This box is as you describe....vintage 1993, though it was unused till I installed about 2 years ago. I'll do an ohmmeter test on the pot. 73/Jon AA1K _____________________
Following some tips here on the reflector a few weeks back, I finally climbed the tower today to verify that the pot in my motor is open on one side. Now I have the motor on the bench so I can get th
In the TVRO section of the Rohn Catalog (this also should be on their web site), they show 50 percent guying distance for Rohn 25, 45 and 55 tower up to 80 feet, rated for a big dish on top -- I thin
Ace Hardware stores in our area (central Delaware) have been carrying a good selection of stainless hardware at reasonable prices (better than boating stores or Home Depot and Lowes). They sell by th
I've used dozens of elevated guy posts for towers up to 120 feet over the past 24 years. Some with 4-inch pipe filled with concrete, others more recently with I-beams. Never had any break off. In one
Use the resistance chart and voltage chart in the manual to make sure you don't have a wiring problem before you go to the trouble of removing the rotor. The resistance measurements are made in the s
This page was dated September 2001 -- is the guy-anchor tower still in use, was it replaced or did it fail? 73/Jon AA1K _______________________________________________ _______________________________
I'm going to be putting up a 10m and 6m yagi on the same mast around 100 feet up. Anyone have experience with this combination? How close can I space them without interaction? 10m yagi will be equiva
Jon, The Rohn flat base plate is designed to be used with one pier pin, in the hole centered between the 3 legs. I've found some of these with an extra hole out near the edge -- maybe for attaching a
Doug, I did something similar in the '90s at a previous QTH. I had a main mast with 13 feet or so sticking out above the top of a 70 ft. Rohn 45 tower. I had a 204BA at 82 feet, a 4-el Wilson 15m yag
N5IA's son posted this on Milt's QRZ.com page: "Hello to all of Milt's Amatuer contact, friends, acquaintances and others, "I am Milt's oldest son Jason, some of you know me, most of you probably don
Ed, It does indeed look like a Mosley. I just did some work on a Pro 67 which had the identical phasing lines between the two driven elements, and Mosley color codes these two elements Red and Blue a
Tom, I have used a 135-foot or so end fed No. 18 wire for numerous portable operations with great success. It typically is configured as an inverted L for 160 meters, using a small BC variable in ser