Ground lightning is the equalization of charge between cloud and ground. It happens all over the world many times a minute. What mainly determines where lightning will strike are local conditions. Th
The Polyphasers are listed devices. Not UL but one of the several other certified labs. At least they were some years ago. I don't remember the lab that they used. They may ask for UL listing but the
If you can find one, an EZWAY 40' or 50' crank up tilt over is a great little tower. It is a galvanized tower with a "wonder post" that goes into the ground about 5 or 6 feet. They are no longer in b
Speaking of radials: a friend of mine has an 80 meter 4 square with 120 radials on each element. They are laying on the ground. In the summer the element impedance measured right around 37 ohms on ea
Hi Gerald, Thanks for the reply. I understand what you are saying but it seems a large deviation given the number of radials. He does have the radials tied together with those of the other elements w
There are some fittings that just have small rings around them. They look like a thread but are parallel rings. They are made to be driven into a smooth hole with no threads. If you are turning the w
What about having the boom on the same side of the mast as the raising cable is connected to the tower? That might help balance it a little? Another thing to do is keep a rope tied to the top of the
Hi John, I had an RFI problem with EATON arc fault/gfi breakers. I had 4 of them in the new house and all would trip as soon as I transmitted on my yagi antenna. I contacted EATON and they replaced t
There used to be a chart on the side of the Heath cantena that showed the difference between transformer oil and mineral oil as far as power/time. As I remember it was rather a significant difference
I have a large oil filled Bird load with several large fans on the bottom. It is rated for 2500 watts continues with no air and 10 KW continues with the fans on. Although the above is 4 times the rat
Hi Rick, Why wouldn't you just run all of the radial wires up over the foundation to a small ring or combined connections right at the tower? 73 Gary K4FMX ___________________________________________
Another way to think about this is that your antenna starts at ground. When you have a long ground lead (any length) from the radial system to your feed point that lead is part of your antenna. It do
Lightning can be thought of as a constant current source. A strike will contain X amount of amps and it will conduct that amount of current to earth. If there is resistance/inductance in the path, th
The glass is formed from the sand around the rod getting to the melting point. 73 Gary K4FMX _______________________________________________ _______________________________________________ TowerTalk
Unfortunately the article does not mention a vertical mounted OVER salt water. Laying a small number of radials on the sand or coral rock near the water is not going to give a very good connection to
Do you mean an LM 354 rather than a TH 354? If it is an LM 354 that is a self supporting tower and doesn't need to be guyed with proper concrete base. 73 Gary K4FMX __________________________________
Pat, Call Tashjian and ask them to send you the instructions for the tower. Be very specific that you want the instructions for the tower, concrete base, tilt over, winches etc. they will send them o
Don, The biggest thing to look out for in a right angle connector is how the male pin is attached inside. The good ones screw into the arm that is part of the female side. Some junk connectors have a
Hi Paul, I have been doing the same thing for over 40 years when installing a reducer. It is the only way to get a solid mechanical and electrical connection. Trying to solder the braid thru the hole