Might there be a problem using steel staples over copper wire? Isn't there an opportunity for dissimilar metal corrosion? Sure, if the copper wire is insulated with a plastic insulator, it won't make
If it is short, ie not having a tall base of 3.5-4" but instead about 1.5", then it is probably an AR-22 rotator. Bill Coleman, AA4LR, PP-ASEL Mail: aa4lr@arrl.net Quote: "Not within a thousand years
According to this link: <http://www.rotorservice.com/serv3% 20identify.htm> it would appear you have a Ham-IV on your hands. Bill Coleman, AA4LR, PP-ASEL Mail: aa4lr@arrl.net Quote: "Not within a tho
No and Yes. No, radials are not needed. However, they may affect the performance of the sloper. I had a 40m sloper on a 15m tower and it was positively affected as I added radials for shunt-feeding t
I did! Hmm. That's not what I remember. Climbing harness, fall-arrest lanyard, adjustable lanyard, 3' rope lanyard and two 6 foot nylon slings was about $300. I figured it was well worth the money sp
Before I put the tower up, I had a 10/15m delta loop in the attic. Worked pretty well. I made gamma matches to feed mine. I ended up with a gamma wire the same diameter as the elements, about 4% of t
You'd think, but when I found my matching networks by trial and error, I couldn't find any matches with the C on the coax side. Both my 160m and 80m networks have the C on the antenna side of the L.
The best way is to pound them in. Doing that can be tricky. It all depends on the soil. I put a couple of ground rods in at W4AN (SK)'s superstation in Dahlonegah, GA. Soil there was undisturbed fore
Dumbell collars -- from the weight set. These are old and have a setscrew. Newer ones have a lever or knob. Bill Coleman, AA4LR, PP-ASEL Mail: aa4lr@arrl.net Quote: "Not within a thousand years will
The MA40 is designed to be bracketed to a structure, so you should keep that in mind. The MA40 probably does not have the structural strength to hold BOTH an A3S and A3WS at the same time. One or the
Today I climbed the tower to take down the four foot lighted snowflake that serves as a Christmas decoration. Just before I came down, I noticed something odd. My nine-foot mast is mounted about 1/2"
I remember a calculus class at Tech where the instructor was trying to solve a problem, and he kept getting confused because he was talking at the same time. At one point, he said, "OK, I'll stop tal
I have 15m of Rohn 25 housebracketed at the corner of the master bedroom. I have almost zero noise problems. The only times you can hear the tower are a) when the rotor brake locks/unlocks (Klunk!) b
Electrically, this is a very effective balun. I had planned to do this when installing my A3S. In fact, I even figured out a method to mount the 4" PVC to the boom by cutting at 45 degrees and then u
I've had my A3S up at three different locations for about 13 years total, and never had any problem with the elements turning on the boom. Do you have the elements properly assembled on the boom with
Old message, but same solution -- place stainless steel under the copper and attach with a stainless steel clamp. Stainless won't react with either the Iron or the Copper. Bill Coleman, AA4LR, PP-ASE
I think the UT-2000A and B are the same, except the B has a built-in SWR meter. Bill Coleman, AA4LR, PP-ASEL Mail: aa4lr@arrl.net Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wri
I've had a tower up bracketed at 18 and 26 feet that ends at 44 feet, with six more feet of 2" mast. This is 24 feet above the bracket, and it holds an A3S/A743 and has been up for five years. By my
You can do a lot of contesting if you can put up a short tower. A 40 or 50 foot tower can support a tribander w/ a 40m dipole option, and can be shunt-fed for 80 and 160m with a matching network. I h
I used two sets of four-pin trailer connectors. The wires and rotor cable pass through the bottom of a 4x4x2 inch NEMA box which is mounted via U-bolt to the tower leg. Inside the box, the wires are