Since there hasn't been any approved specification for Contaminating Jacket type RG8 (50 ohm) (O.D.= 0.405) in about 35 years, I thought RG213 (50 ohm) with the Non-Contaminating Jacket (O.D. = 0.405
Pete, there is no reason not to use aluminum for ground panels and straps and wiring for ground connections (but not where it contacts real ground). The utility companies started before 1958 changing
I have used nothing but quads for the past 30 years. I see a lot of problems in what you are doing: A quad in a diagonal or square configuration will clear guy wires that are about 4 to 5 feet down f
I had one of the Hornet tri-banders and it worked well for a while. This was in 1974. After a couple of seasons the traps quit working. Turned out that they had used copper coils and aluminum element
In Texas there is no such thing as a (long term) self supporting tower. Those that go to 60 feet self supporting have a base nearly 8 feet on a side and I have seen the legs bent in those. Do the cal
When I lived near Jamul, CA, I went to the planning (and permit) department in San Diego for a 100 foot Rohn 25 guyed tower. They issue permits for San Diego County. They wanted a set of drawing of y
Lightning tends to melt omni type fiberglasss antennas. The only way I know to protect them is to side mount them on the tower considerably below the apex (the phased dipoles that are mounted directl
I have a Rohn 45 Foldover also and would not be uncomfortable about simply copying the existing design (if you can get someone to galvanize the finished pieces properly). To go to 70 feet with a much
I bought 8 heavy duty (1 1/2 inch and 1 1/4 inch telescoped for the 13 foot poles) fiberglass poles for my third replacement for my 5 band 2 element cubical quad. This springs Texas Ice Storms (of co
I bought 8 heavy duty (1 1/2 inch and 1 1/4 inch telescoped for the 13 foot poles) fiberglass poles for my third replacement for my 5 band 2 element cubical quad. This springs Texas Ice Storms (of co
I use four 10 foot 4.5 inch OD 1/4 inch wall steel pipe for a 62 foot Rohn 25 Fold Over tower with a 2 element quad. The vertical anchors are buried in the ground 5 1/2 feet with a 16 inch diameter h
Unfortunately, almost ALL 3 point hitches DO NOT apply any downward pressure - only upward pressure. This is true on nearly all tractors. Maybe you could modify the design shown in "Low Band DXing"?
Nope, most large tractors do not have down force on the 3 point, but a few third world tractors do. I have a 68 HP Kubota. Only the weight of the implement provides the down force. Same on Ford, John
It isn't the 45# with a 12 foot lever arm that is the problem, it is the 80 mph wind gust of 30 pounds per sq ft x the 12 sq ft x the 12 foot lever arm that bends the mast and bends the tower. The wi
Driving home today after a recent thunderstorm, I saw a crank up (telescoping triangular tower) BROKEN completely in two pieces with the beam hanging nearly on the ground. This was a fairly heavy dut
Trylon makes one of the better self supporting crank up towers and is probably the one I would buy. That said, a Trylon T600 64 foot tower with 1/2 inch radial ice with 100 mph winds is rated for 0.0
Hi Jim, I used a piece of 75 ohm coax 1/4 wave in electrical length to feed each of the five elements, running each one to a band select relay box mounted about a foot below the quad. Works excellent
My interests are a small station contester and a dxer and have been doing this since 1955. Appreciate any suggestions on planning for my new tower installation to be put in next month. Budget is appr