Sounds like what you are looking for is a NEMA 4X electrical enclosure. NEMA 4 is water tight. X is for corrosion resistant. They are available in non-metallic and stainless steel. They can have a bo
I'd recommend considering chrome molly steel, 1/4" wall, galvanized and rated at least 100,000 psi mast yield strength. A 22-foot mast like that weighs about 125 pounds. Then run the calculations for
Great post. Made me laugh. Thanks for brightening my morning. Marsh, KA5M Fred, I like the 'teamwork' idea...sort of like what I had going here for a while. I was able to convince my wife that we sho
I just hate it that we've lost another ham radio operator to a tower accident. My sincere condolences to the family. Marsh KA5M http://www.wirelessestimator.com/breaking_news.cfm RIP Tim K3LR _______
N6SJ Steve has offered the best advice below. In my experience Remigio is quick to reply to questions via e-mail. rfernandez@ustower.com Remigio Fernandez-Garcia Civil Engineer US Tower Corp. 1099 We
My tower is a US Tower HDX-555. I'm planning to stack a compact 2L 40 monobander and a larger tribander on the same mast 10' vertically apart. Which antenna should be on top? The 2L 40M is lighter an
According to EZNEC+ v5.0.65 20M dipole up 31' over Real/MININEC ground with copper wire losses: 6.44 dBi max gain at 30 deg; -4.77 dBi gain at 5 deg takeoff 20M dipole up 95' over Real/MININEC ground
1 conductor per phase utilizing a #14 Copper conductor will limit the voltage drop to 0.37% or less when supplying 0.41 amps (about 50W at 120V) for 200 feet on a 120 volt system. Marsh, KA5M That's
The electrical device you are referring to is called a "weatherhead". Marsh, KA5M Thank to everyone who replied to my query. You have asuaged my fears and will proceed with embedding my feedline cond
M2 calls their Orion 2800PX device that turns a mast an antenna is mounted on a "positioner". :-) 73, Marsh, KA5M I am *so* glad to see this pointed out...thank you. That which turns is the rotor. Th
I've just got to ask - who were the "experts" who said adding two (2) more "radios" (sic) would help? --Original Message-- From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of Brian
Sorry, somehow I just couldn't resist. 73, Marsh, KA5M --Original Message-- From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of Brian Carling Sent: Monday, January 19, 2015 4:28 PM
Dr. James Duffey KK6MC has a PhD in Solid State Physics from the University of Nebraska and his professional life is spent working for SAIC (SAIC, Inc. is a provider of scientific, engineering, syste
Has anyone ordered an antenna from N6BT Next Generation Antennas who would be willing to share their experience relative to shipping times? 73, Marsh, KA5M ___________________________________________
30M 3-Element Vertical Yagi: Assuming a frequency of 10.100 MHz, 1" diameter AL vertical elements (all starting at 6" above ground, and #12 wire horizontal elements 6" ABOVE GROUND I started out with
Can I use 4 chips to make an array? ;-) 73, Marsh --Original Message-- From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of RMorris Sent: Thursday, April 09, 2015 12:54 PM To: Roger
Timely question. I've been wondering about how to waterproof the shell of a PL259 to the flange of an SO239. I rolled out a thin "string" of black coax seal and made an "o ring" to go on the SO239 an
I used a dab of liquid electrical tape to seal the ends of the Phillystran HPTG-1200 on my new DXU-32. The Phillystran "soaked up" some of the first application so I put on a second coat on each end.
Peter, There is a product designed specifically for what you want and need to do. Check out http://www.kf7p.com/KF7P/CoaxArms.html Chris makes good stuff and sells it for a reasonable price. (I have
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