I had printed the articles out before they disappeared. When I get the scanner back up I could e-mail you a copy if you like (may be another week or so). Several others have also asked and the offer
I forget the exact numbers but wind pressure is something like 20 psi at 50 mph, 30 psi at 86 mph, and 40 psi at 100 mph. There are many other factors obviously that will affect the load. ___________
Texas Towers claims to sell 6 and 12 foot sections. The 12 foot sections I believe have to be sent by truck whereas the 6 foot sections can go UPS etc. I have only bought 6 foot sections myself. ____
Your comment made me look at the article. I didn't read the whole thing but it looks to me like they are trying to do diversity reception with a single "solid state" antenna. Diversity reception is t
I have seen references to the fact that solder breaks down over time but nothing definitive. I couldn't find references to the notes. But I have noticed that soldered connections do tend to deteriora
One of my thrust bearings came with a set metal strips (for lack of a better description) that go between the mast and the end of the centering bolts. I wonder if the clamps are something like the me
Ocean State Electronics is where I got mine. The reviews of Ocean State tend to be on the negative side but I had no problem. They were a tad slow taking about 3 weeks as I recall to get the parts. 7
I have an EF180B between a KT36XA and F12 240X. It runs parallel to ther booms. I never had any luck with it on anything but 80. The KT36XA is at 100 feet, the EF180B at about 107 feet, and the EF240
The direct burial coax I have used is quite stiff (I don't recall the brand off hand). There is some that is supposedly more flexible. The stiff stuff I have works in a rotator loop at the top of the
I have hawks on my 45G tower often. I have a work platform but I don't recall seeing them use it. They use the antennas and the guy attachments (of all things). Fortunately, they don't seem intereste
I was interested in how you kept the water out (I don't have a PST61). One guy at the local hamfests was selling what looked like the kind of metal piece under an electric stove element that he insta
The link below should take you to a calculator (Google: log periodic calculator). I tried it a couple of months ago and the values seemed reasonable by looking at them. Values seemed to work in an an
No problems here. I have run it several times on multiple systems and no viruses. Some anti-virus programs/browsers are more generous with such notifications than others. You will have to decide whet
Force 12 typically uses 3 pop rivets at a joint. The C3S used 1/8th inch rivets spaced about one inch on center. My 40M elements also used the 1/8th inch rivets but some of the 80M rotating dipole I
If I recall correctly there were several models of 25AG sections - all were top sections as I recall. One had a flat top. Another model had a pipe sleeve top. Seems like there one two other variation
There is a site for fixing Cushcraft R7 verticals that has a reference to a scheme by VE6LB for fixing the insulation on R7 traps. I don't know if that would work for the A4 but might be worth a look
The trailer scheme can work but one needs to pay attention to the trailer laws in any states you will travel through. There may be length, width, and/or weight limitations. States often differ on whe
I had better results with a 160 sloper attached to a 100 foot tower at the 70 foot mark than my inverted V at the 90 foot mark. The sloper and inv V were not on the tower at the same time so direct c
I can't answer for NEC - I haven't been through NEC in quite awhile. The Polyphaser lighting protection book had recommended that ground rods should be spaced about twice the rod length apart. What d
Both as I recall. I am not where I can get to the book. The distance was suitable for to avoid charge saturation between the rods. The book recommended multiple radials from the antenna with the grou