Apparently my last try didn't get through, either. Steve, K7LXC, indicates that the word t*e*s*t won't let messages through. So, here's my 3 or 4 try/rewrite. Hi Bill, I agree with low Q problem and
Messy how? You want to use a thin penetrating oil that will wick into the cable strands. NOT something that will coat the outside of the cable and attract dirt and particles. The Lubriplate I've used
In answer to k4oj's question about cutting his 1/2" catv hardline: You can add RG11 jumpers at one or both ends of your 75 ohm hardline to "tune" the overall length to a multiple of 1/2 wavelength. A
...OK, I have some nice brand new, manufactured in 1997, CATV hardline that I want to use to feed the new 20 meter beams....my question....what should I anticipate as a velocity factor? I will try an
my assumption is that Matt has the ability to selcet if no individual yagis, pairs or sets of them....I mean he is getting up there, pushing the hardware envelope, eh? k4oj -- Forwarded message: From
Sure gives us all something to talk about eh? :-) 73, Ron, SOWP 5545M, .........KU7Y.....ARCI #8829.....Monte "Ron" Stark..... ....ku7y@sage.dri.edu...........Washoe Lake, Nevada.... ....QRP-L #17..
Hi, Trey -- Slumming, eh? The 2 self-supporting towers that ARE worth it are the Rohn RTP/SSV and Trylon Titan. The Rohn can be engineered for virtually any height, windload and windspeed but has a t
I was taking a break while digging the foundation hole for the #25 tiltover on Sunday, and decided to look for a QSO to share some sore muscle misery. The classic 2-fisted post-hole digger is a pain
Hi All, I was going thru some of my old antenna design notes from the early '70s and ran across some notes on my designs/results for some stacked 8 el. wide spaced yagi's for VHF (2 mtrs mostly). Dur
Sorry for the typos - it is getting late after the club meeting: In the Rohn towers the threaded portion of the bolt is in shear loading so more cross sectional area means a stronger bolt and joint.
I think they are fine thread to keep as much of the basic bolt materail available for shear strength. Fine threads remove less material. I nt eh Rohn towers the threaded portion of the bolt is in she
Hello all! In a effort to reduce the weight of a mast for my antenna project, it would be desirable to use a light-weight mast that is reinforced with an interior cylinder .. My question: Does one me
Hi Chad, thanks for the reply. I looked thru Dave's book as closely as I could muster and didn't see the reference; and I was looking there for it! I asked an M.E. (I'm an E.E.) at work who used to b
Hello all! In a effort to reduce the weight of a mast for my antenna project, it would be desirable to use a light-weight mast that is reinforced with an interior cylinder or rod in the lower portion
A glutton for punishment, eh? Forged clamps are stronger than malleable, or cast, ones. I have a partial military spec but don't have any definitive numbers on them; I don't think it's enough to worr
Ed - Hmmmm, so you doubt the story eh? Well, your doubt noted. But keep in mind that this was a DIRECT quote from Newsline and I doubt if the would print a substantial story like this and it be false
When Paolo, I2UIY, was in town for the WRTC in 1990, he showed us a picture of a ten meter array in a diamond configuration that was used by one of the big Italian multi-ops. It's just like your H ar
Have you any experience with a two wire/bi directional beverage...or long legged vees? The wonderful new neighbor of W1CW and W1YL has just purchased 80 acres of grazing land that butts against the W
the worked Inquiring minds want to know, eh? The calculations were taken primarily from Dave Leeson's (W6NL, ex-W6QHS) book Physical Design of Yagi Antennas with some help from Stan Griffith's (W7NI)