Doesn't US Tower require J-bolts, rather than straight bolts? Jim N7US location in Nevada for contesting. I already have in place 10 cubic yards of steel reinforced concrete with 1 inch diameter by 3
I'm looking for an IL structural PE to review the calcs for a ham tower permit application. I have all the calcs and previous permits I've gotten in AZ and NM for my US Tower HDX-589 motorized crank-
How can one tell if used ICE coax arrestors or 8-conductor control cable arrestors are still good? DC continuity on the center conductor of the coax arrestors? DC continuity of the control cable arre
I received a nice answer from Jay, WX0B, who distributes ICE products. He attached a schematic, so I'll forward his reply to anyone else wanting to know the answer. Jim N7US _________________________
Sorry for the clutter, but I know I made a mistake on copying the email address of one who wanted the info from WX0B. Let me know if you wanted a copy and didn't get it. Jim N7US I received a nice an
Using a single feed, my C-31XR resonated (measured in the shack, where my transmitter is) well below 21.0 MHz (209??). N6BT suggested cutting an inch, I think he said, off the end of each side of the
I get my domain name and email from Go Daddy (godaddy.com), and it's about $10-20/year. Their spam filter is adjustable by the user. (And they have memorable Super Bowl ads!) Jim N7US --Original Mess
I believe that US Tower can furnish wet stamps for all states, but I don't see it on their web site. You may also find an engineer through ARRL's Volunteer Consulting Engineer Program, http://www.arr
Don, I used to have one when I lived in AZ. Sold it to W7IUV who has it now in WA. I think Hy-Gain built them in Lincoln, NE. Hy-Gain made a raising fixture that I had. It was guyed back to one screw
I have a couple of Cadweld One-Shots left from my last installation and just ordered some additional ones. I'm wondering if the new ones I ordered, which are called Cadweld Plus One Shot, will work w
Does anyone have any suggested sources for Cinch-Jones (or whatever) plug and socket sets for rotor control or whatever? I'm thinking 6 or 8 pins. Part numbers would be helpful. I looked at Mouser bu
I got such good answers on my question about plugs/sockets for control lines, I'll press my luck and try one more question. I'm reinstalling my US Tower HDX-589 near Chicago. The tower is 48' from th
Is LMR600 or the equivalent too stiff to pass through three 45-degree sweeps in a 4" PVC? How about with an 89' crank-up tower? I am trying to decide whether to reuse my Davis RF Bury-Flex or replace
--Original Message-- Is there any way to tell when the ICE or Polyphaser arrestors need to be replaced due to taking too many lightning hits? Any way to tell if/when your tower has taken a hit? -- Th
I agree with Bob's advice. Several years ago, I looked up at my 3L Force-12 EF-340 40M yagi to see the ends of the boom, where the boom guys were fastened, higher than the center of the boom at the m
I wasn't aware of Kellems, but I'd have used them if I had known of them. I see that you have to run the cables through them before connectors are installed. I used a gray (2"?) PVC 90-degree sweep t
I wasn't aware of Kellems, but I'd have used them if I had known of them. I see that you have to run the cables through them before connectors are installed. I used a gray (2"?) PVC 90-degree sweep t
My recollection is that Kenwood outsourced their repair parts business quite a while ago, though I don't know to whom. I don't know how successful that's been, though it would be interesting to hear
I hung an 80M inverted vee fed with window-line balanced feeders hung off a cross-arm at the top of my 89' crank-up tower. I don't have the feedline attached to the top of any sections (yet?) and hav
I have an APC Smart-UPS 700 that I bought from RefurbUPS.com. I can't tell in the information I have which type of UPS it is. Does anyone know? Thanks. Jim N7US --Original Message-- For my really exp