Bill, Did you use the stock Hygain screw clamps at the end of the telescoping elements or did you use stainless steel hoseclamps like I do? 73 Bob KQ2M I had a lot of problems with the 155CA and the
There are two reasons. 1) Many of the screw clamps do NOT tighten enough to keep the element pieces from slipping. I used to test the clamps but tightening as much as possible (without stripping the
Over the past 18 years, my tall 130 tower has been hit by lightning (not lightening) at least four times that I know of and the shorter tower, 100 at least three times. Both have rebar in concrete wi
Tom, Which company made the cores that you use? Bob KQ2M Jim - Add me to the list, I've had cores disintegrate over the years. I use several them at the base of my 80 and 160 4-square verticals, wrap
With no preventative You have to twist the bolt off. That can be a real knuckle buster with 3/8ths or 1/2". Thats if you are lucky. Often the bolt will not twist and the bolt head shears and then sna
Thanks Roger. Yes, alive is a good way to describe it. :-) 73 Bob KQ2M Good suggestions Bob. That stuff is tenacious, slippery, and tends to migrate as if it were alive. 73, Roger (K8RI) On 7/2/2017
In 1995 I built an 80 meter 4-square with KQ2M design 3/16 wavelength spacing with 4 elevated Inv L elements about 50 vertical and the remainder mostly horizontal. I used the Comtek phasing box and t
Several additional points to keep in mind: 1) Where in the mid-West are you? Southern Ohio has very different propagation than Northern Wisconsin. Your location will affect what parts of the world to
Gary, The lower the better? Rare when higher is better? Seriously? Just for an example, I operated WPXSSB and WPXCW full-time (36 hours) with my 5/5/5 on 20, 5/5/5/5 on 15 and 5/5/5/5 on 10. At no ti
It is clear my post was in response to Jims post (which was attached) where he specifies TOP (antenna) was rarely best and the lower the better. Bob KQ2M Err, we better keep straight whether we're sp
Sorry I meant in response to Garys, (K9RX) post NOT Jim. Bob, KQ2M It is clear my post was in response to Jims post (which was attached) where he specifies TOP (antenna) was rarely best and the lower
Jim, Are you referring to the fact that at any given height over terrain for any antenna, there are multiple lobes, and that the angles of these lobes change as the height changes? The YO program tha
Many years ago when I was getting ready to put up my 100 and 130 of Rohn 45, I used paint gloves and lots of dark gray outdoor latex. First you scrape off any rust and lightly sand over it and wipe a
Hi Paul, How does this differ from the the stock 40M4FS-100 design? Tnx & 73 Bob KQ2M could only find one eval on eham by W4AN (SK) so years ago. Thanks," Yes, N4CC and I use one at our remote site.
Hi Pete, It depends on many things depending on your situation: 1) What are you attempting to protect your cable from? Lawn mowers? Lightning? Someone digging into them? etc. 2) Type of cable and typ
Some of that is just luck sometimes it is GOOD luck and sometimes is it BAD luck. I gave up on my beverages deep, deep in the woods many years ago. The foxes, squirrels, mice, coyotes, skunks and squ
Hi Paul, Thanks for that info. Direct burial flooded RG-6? Wow never heard of that. When you get the chance I would appreciate learning the details of the jacket Im sure that is the answer. Any prici
I hope that it isnt a Robin family. Robins are real predators at my qth in Western CT, each year routinely attacking other birds minding their own business, including a large red-tailed hawk and a Gr
My understanding is the mutual coupling between the four 1/4 wavelength verticals tends to raise the resonant frequency by ~ 5%, (that is what I have read in numerous places), meaning that you want t
No, that is not correct and both of my 4-squares use the Comtek Hybrid. Of course I care about 3% at 3.5 mhz, that 3% changes the resonant freq. of the array (and minimum dumped power to the dissipat