That second one is probably T-26, 24 11/32" center to center on the legs? It came in three wall thicknesses, with sections weighing 160, 200, or 235 pounds. I have an old catalog with mechanical draw
Try a dipole made from back-to-back Ham Sticks. Someone sells a center fixture for this purpose. Dave Hachadorian, K6LL Yuma, AZ _______________________________________________ ______________________
I posted this to Towertalk in November of 1996: -- Scary Story It was not a typical balmy afternoon in Yuma, Arizona on Friday. There was a cold front approaching from the north, which was kicking th
Worst case is when the tower is just starting to rise off the ground. Given: tower weight = 160 lbs tower CG 20 feet from base weight of accessories at the top = 120 lbs accessories 42' from base pul
With the ladder line, you will have to use a real tuner, not the one built into the radio. This means more knobs to turn. Ladder line has far less interference rejection than coax, which means that y
Here's how it is supposed to work: Rotate the winch handle in the "tighten" direction until the cable reel just begins to turn. Then, hold the winch handle in a fixed position and you should not be a
Actually, the basic tower was 48' with options for 58 and 68. Actually, Rohn drawings show four below the hinge & four at the top, using the same anchors. When the tower is folded over, keep in mind
Don't worry about high swr causing line loss at the band edges with a KT-34XA. Don't worry about burning up the balun. I run 1500W RTTY all the time. Coax cost is minimal, compared to the cost of tha
Go here http://www.radiancorp.com/ROHNNET/rohnnet2004/html2004/index.html Then, navigate as follows: on line catalog hardware accessories & general info standard concrete anchors Block number 4a That
Depth (D) is in the left-hand column. Dave Hachadorian, K6LL Yuma, AZ . _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTal
-- The DE's of the smaller antenna are about 7' forward of those in the XA. You can get the two antennas into phase by adding a delay line to the smaller antenna. Just make the coax to the smaller on
Oops. Let me correct my ambiguous sentence structure. What I meant to say was that you can download a free copy of the purchase specification for this tower here: http://assist.daps.dla.mil/quicksear
-- The 48' guy will make an angle (a) with the ground of 51.3 degrees. The 44' guys will be 53.7 degrees. Tension in each guy wire due to horizontal forces (Fh) on the tower (such as wind, and the ot
Don't tease us like that. Write it up and publish it! Dave Hachadorian, K6LL Yuma, AZ . _______________________________________________ _______________________________________________ TowerTalk maili
I wouldn't use a 6' mast above that little HD-73. The rotator can't handle it. Mount the beam immediately above the rotator. If you put the rotator and beam right above the top house bracket, you can
That was probably from a posting that I made here on towertalk. A 1/4 wave 40 meter stub (~23 ft) has the following characteristics: shorted: Passes 40/15, rejects 20/10 open: Passes 20/10, rejects 4
Something to keep in mind is that a 9' mast is UPS shippable, saving a ton of money on freight. Texas Towers once sawed off one foot from their 10 footer for me. Dave Hachadorian, K6LL Yuma, AZ . ___
-- Well, a shorted .25 stub for 20 passes 20 and rejects 10, not very valuable. Here is a better trick to remember: 40m .25 stub (23' @ vf=.66) shorted, passes 40/15, rejects 20/10 open, passes 20/10