If I was going to do it I'd go rent a tub saw that flooring techs use to cut ceramic and stone tile of all sorts. Slow turning diamond impregnated blade soaked with water pumped on the blade during t
That is exactly what Tennadyne has in their manual. They have you tape the coax to the bottom boom. Now think about this. Would you tape the feed line to a dipole to one of the wires? I'd hope not. T
Exactly! In the case of Tennadyne, the booms are spaced to give a 50 Ohm feed point. To do the drooping coax get yourself the Home Depot/Lowe's and buy a 12" x 24" sheet of UV protected Lexan. Cut it
Tiltplate was designed for antennas with booms. Hexbeams have no boom. Purpose built and less expensive. Right "tool" for the job. Also considerably lighter and less wind resistance by a huge margin.
Paul, Sounds like you need another antenna or two. Put one at 50' and the other at 75' and another at 100' and switch between them as the band changes. The 25' stacking distance is what M2 recommends
So were all talking about the same stuff. Manufacturer's Part Number: /DXE-213U-1000/ Coaxial Cable Type: RG-213/U Coaxial Cable Jacket Outside Diameter: 0.405 in. Coaxial Cable Jacket Material: PVC,
Rudy, I would consider changing the mast clamp to something like what K7NV or K7LXC produce, assuming they will fit the Prosistel rotor. As to question 1 below I'd use a bolt slightly softer that the
If it comes down to N or DIN go with DIN. I am decidedly in the crimp camp when it comes to connectors. It's so much quicker and I think gives a stronger, more uniform result when done right. As with
I believe it all started with the superiority of heliax/hard-line from a loss perspective and since UHF type connectors for such cable are expensive and rare why not use 7/16 DIN, a commercial standa
My father has had an A4S up for nearly 25 years sans a boom truss. We live in Iowa. We have real winter. We haven't seen the kind of damage Grant is talking about. When it comes down for bi-annual ma
MaxGain Systems has 7/8" x 4' fiberglass rod for $11.00 per stick or $20 for 8'. http://www.mgs4u.com/fiberglass-tube-rod.htm It is time to replace all the Linear Loading Insulator fiberglass rods on
Exactly. If your going to be inside six feet of these things when they fire you not only need proper eye and hand protection you also need to consider what you are wearing. I was an production and R+
Absolutely! US Tower have never been happy in the Ham Market. They tried several years ago to discourage people where is snows from buying by adding a "snow loading" disclaimer. It's supply and deman
Chris, I used to do it for a living. I was certified to weld just about anything anywhere, except underwater. They are NOT a start up. They've had all the tooling and "machinery" for many years now.
Correct. Double it if you want. I can't imagine it taking more than 10 minutes to load and clamp the fixture. Add another 5 for getting it out of the fixture. That's 2+ per hour. Building the complet
It's just physics isn't it? A three element antenna will be better than a two element antenna assuming both have optimized element spacing and length for a given optimal boom length. The C3 family of
I believe Optibeam's version adds a reflector for the lowest band and director for the highest band. Amazing amounts of front to back and the gain of a 3 or 4+ element yagi, depending on boom length.
Dan and all. Max Gain Systems sells fiberglass for quads spreaders. They also have a quad tips section of the website where they explain using small air hose, a small length of copper tube and a hose
Optibeam's have been in the field for for how long now? Their multi-band beams have higher surface area (more elements) than most multi-band beams and I haven't heard of huge numbers of elements fall