You only need to tie one of the tower rods to the shack ground, if possible. That's your SPG (single point ground, even with two rods) and everything should be tied to that, so to speak. Yes, yes, ye
I make my own staples out of 14 Ga electric fence wire. It's real cheap from Farm N Fleet around here. I merely cut off about 7 inches and bend them over my hand. I then slightly bend the two legs ou
Welding on rebar steel can weaken it unless done very correctly by a trained professional. Tying is the preferred method; I believe there is no reduction in overall strength using ties. Phil KB9CRY
I've procured a "new in the box" KLM 3 el 40M yagi. M2 is now producing their version of this antenna. I've been in contact with the folks at M2 about performing upgrades to the KLM before I erect it
Just want to inform those who inquired, there is an expanded article on construction details and more piks on my web site at: http://nidxa.org/kb9cry_rotatable_low_band_receiv.htm
1. Teach the ground crew how to tie a bowline; especially when they tie onto something to be hoisted up. It's strong and easy to untie. 2. I have a 1/4 inch dacron line with pulley snatch block ready
Gene is right. My advice also is to forget and call the contractor. It'll be worth it. However one thing to consider is that if you plan to use a concrete truck to pour the mix into the hole and plan
I'm hoping I'm not imposing too much but can some of you's 'alls do a quick modeling for me? I don't have the necessary software and/or expertise and I think this will be a piece of cake for you expe
I've used a 130 - 156 MFD @ 110-125 VAC cap from Grainger in CDE 44, Ham II, and Ham IV control boxes with great success. Grainger part number is 4X059A Also don't foget you can mount the cap right a
Well I finally talked to my industrial concrete contractor and described the original question. He told me that the pier on a larger pier is just like a footing/foundation wall design and as long as
I concur with Jon, having 20 years of yacht racing under my belt; racing the same circuit as Jon does. A bowline is actually very easy to tie; with practice one can even do it single handed (helps wh
No, then you'll have a cold joint which can let water in to attack the steel rebar. Tell him to just form it up properly; it is a little more difficult to do. If you have to do two pours, then specif
I use 17 ga galvanized electric fence wire; real inexpensive from the local farm supply. It's stronger than copper and doesn't stretch as much. Phil KB9CRY
Rick, being a chemical engineer myself, I will and always have, left the details to the structural guys, but the engineer probably is increasing the base size due to his knowledge of the local soil c
The Radio Works pulleys are made by Harken; one of the top manufacturers for the boating industry. Try West Marine or other online boating/sailing rigging outfits for more selection. These are made f
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