Frank is quite right about using solar noon to find true north (or south). I used to use this trick for aligning satellite dishes in the old days. It was easier and more accurate than using a magneti
I suppose, Gerald, that you're also sorry for the "slight" error you made when you "sincerely" told me the 3/8" thread, 6" take-up turnbuckles you have available are rated at 4000 lbs load. Your sup
Speaking of traps, does anyone know the RLC constants of the traps in a TH6DXX? I'd like to model that antenna (I've had one for 29 years) using one of the NEC programs. 73 es DX, de Earl, K6SE -- FA
It'll handle all of them except perhaps the 5-el 20. Hy-gain's specs on the Ham-4 (which uses a wedge-type brake), are: Rotor torque: 800 inch pounds Brake torque: 5000 inch pounds Wind load capacity
A method recommended by Hy-Gain to reduce metal fatigue (and subsequent breaking off of beam element ends) is to secure a length of rope inside of the outermost element section (about a foot longer t
amateur >whose call Iforget - line up two sticks on the north star at night, and then I'm a perfectionist, but certainly not in the class of Michaelangelo. The solar noon method of finding true north
reactance. And only the half-element on the same side as the Gamma rod need be adjusted (shortened) to produce a match to 50- or 75-ohm co-ax. The only possible "disadvantage" would be mental, i.e.,
Gerald's (K5GW) comments about rapid azimuth changes of the sun during solar noon are well-taken. I used to experience this phenomenon in the old "spy-in-the-sky" days when I operated a satellite tra
Hi, Steve, Rotor Doctor sells what you want in a kit for $15. The kit is for converting Ham-M & Ham-2 rotors from the screw-terminal strip to a quick disconnect type. It contains a male and a female
On Tue, 15 Jul 1997 13:59:11 -0400 (EDT) Pat Masterson <bat@grumman.com> writes: of == I have two Heights 72-foot aluminum free-standing tilt-over towers, up here since 1976. The configuration of the
Correction on the configuration of my Heights towers: I incorrectly gave the configuration as 26", 26", 22", hinge, 22", 22", 18", 18", 18", 14". The correct dimensions are: 30", 30", 26", hinge, 26"
Jim: I used a 450-ohm balanced to 50-ohm unbalanced (9:1) balun provided by the USAF back in 1967 to terminate a 600-foot/leg 80' high rhombic when I was KL7FRY in the Aleutians. I situated the balun
LIGHTNING STRIKE SURVEY 1 - Have you ever taken a direct hit to either antennas or towers? YES, a number of times over the years. (I've seen it!) 2 - If YES, was your damage MAJOR, MINOR, NONE ? NONE
Oh -- I forgot to mention the 25,000 feet of buried radials soldered to my two "lightning rod" grounding rings. I assume they also contribute to the DC ground. Earl, K6SE -- FAQ on WWW: http://www.co
Can anybody give me a source for turnbuckles rated at 1500 lbs or better? Tnx, 73 es DX, de Earl, K6SE -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesting.com
"You can strap all of the elements directly to the boom with no effect on the KT-34xa; I had the same set-up a few QTH's back." == Be prepared to retune your 160-meter shunt feed system (mainly the h