I might add that the new Force 12 in Colorado has redesigned their hardware package. They now use different insulators and different clamps, a big improvement over legacy C3's. Also the JK stuff is j
So here's what you do: Keep the plate on the exterior wall over the hole, and add another plate on the interior wall. Fill the space between the two plates with insulation, and replace your short bul
Right, Universal aluminum towers use a galvanized steel concrete base (I have one). Chris KF7P _______________________________________________ _______________________________________________ TowerTal
Right, and don't forget to ground the coax braid at the bottom of the toweR. Chris KF7P Where coax penetrates the building is one right place and I propose the highest priority. Other helper location
I think the city person you talked to is deliberately using their commercial tower regulations rather than (non-existent?) amateur regulations. Do some reading up on their rules; dowload a copy of th
Oh, another thought: A 30' tower with a small tribander is a pretty trivial installation, you may consider just putting it up and seeing what happens. Around here you don't need to ask permission for
Sure, why stop there? Put in 3" perforated copper pipe and fill the interior with a soil doping agent to increase conductivity while you're at it. BUT! have you checked the price of copper lately? Ev
This topic is being over-analyzed, as usual. It's not rocket science! We're talking about an amateur radio project here, not building a space shuttle. There are towers made of aluminum, with welded c
Heh, how do you think he can keep his hands steady? :-) Just sleeve the two lengths of tubing you're trying to join either internally or externally, and weld it up! Chris -- mikflathead@aol.com wrote
Jim, Try a tile saw, or brick saw. If you don't have one, keep your toroid in your car and while you drive around, keep an eye open for construction crews laying brick. Chris KF7P Ok, I have a requir
We'd better get it straight from the horses mouth. The Rohn info for using G series towers self supporting is founder here: G-Series Self-Supporting Brochure Download 139 mph? Your house won't be sta
Apples and Oranges! That is comparing a VW Bug to a Ferrari. Both will transport you, but one will do it a whole lot faster! Let's keep the discussion realistic. 1) Read "Array of Light" by N6BT. Th
The C3 has an insulator that grabs and spans across the close spaced elements and keeps them from banging together. The process is also described in the Array of Light book. Chris KF7P Interesting in
You absolutely can walk up a 40' aluminum tower because I have done it, but probably not with anything on top of it. :-) For Field Day we do the falling derrick routine, except for us it's a falling
Jim typed what I was thinking. What is it that is gained by going to that particular Optibeam? You will lose 6m, as the T11 covers 6m. I don't think there is going to be a gain improvement since that
Left handed drills have the battery polarity reversed as well...requires a special charger. :-) Also don't forget to have a metric crescent wrench available to take out the remains of the zerk fittin
Wait wait....the 50/50 mixture of ATF and acetone previously discussed is for loosening the threads, aka PB Blaster, not as a drilling lubricant. Chris KF7P __________________________________________
Are you guys using webmail or a mail client on your computer? Curious. Chris KF7P Dave, I've had the same problem with YAHOO mail since last summer. I sent several Emails to Customer Service and all
I do that as well. Another option is installing a PL259 on the coax in the usual way, then mounting an so-239 to a piece of aluminum angle on the boom (or wherever), and solder a wire from the center
Guys Wondering if anyone has experimented with rolling a small rubber O ring on the end of an SO239 connector before putting the PL259 on it? It seems that if you got the right size O ring it could s