Once again, we're back to the power supply. I guess I have to agree with Jerry that before taking the antenna down you should try a power supply with more current capacity or a big cap on the SteppIR
The procedure is pretty straightforward and the parts don't interfere with each other as much as you might think. I use five-hole equalizer plates that are welded to the anchor rods. The extra holes
Never heard that story! Remind me not to climb that tower... Yet another reason to use a pier-pin base -- you can't install the first section upside down! 73, Dick WC1M ______________________________
I don't want to get in the middle of this, but I just ran EZNEC models comparing the 4-el SteppIR and Force-12 EF-420 on 20m at 96'. The SteppIR boom is 32'; the EF-420 boom is 30' (and presumably op
Yeah, I think there's something wrong with the F/B in my models. I'm looking into it. The figures I posted included ground gain. The forward gain of 14.36 for SteppIR and 14.29 for Force12 are about
I've had a single 4-el SteppIR for about 2 1/2 years and I'm in the process of building a 3-stack of 4-el SteppIRs. I'm familiar with the control box design but haven't actually done what you're sugg
Even more limited when you have three TIC rings in the way! Steve, do you have experience with any of the cable safety systems out there? Are they effective? Are they any less expensive? In my case,
I wasn't aware that the FT-1000MP had a problem, but the FT-1000D definitely does, at least with the old controller firmware. Yaesu has done a particularly bad job designing its protocols. For exampl
Tax on inventory? The Feds don't tax inventory, only net income. Neither does my state (NH). We tax real estate and business profits, but not inventory. Are there states that actually tax inventory?
Almost. There's an exception to that maxim which illustrates how the paradigm has shifted away from Just-in-Time and Build-to-Order for US companies that outsource overseas to places like China. Typ
It sounds like you're not collapsing the gin pole (bringing the head down to the clamp) when you are trying to move it. That definitely makes it much harder to attach the clamp. I tried it a couple o
I'd probably do that with the standard Rohn gin pole or equivalent, but I used a heavy-duty gin pole from WB0B for my Rohn 55. It's a *lot* heavier than the Rohn gin pole. It might have worked to tie
I like the step where you clip the second pulley to the top of the section as it goes past. That eliminates climbing to rig it at the top of the next section. Wish I'd thought of that! ______________
That may be the case for your local building/electrical code, or perhaps what your inspector *thinks* is required, but it's not required by our local code. That's because it's not required by the Na
Is it ever complete? No, I expect plenty of tweaking and maintenance down the line. But at long last the initial heavy lifting has been completed. My 110' Rohn 55 tower now sports a 40-2CD @110' and
When I bought my first Cadweld materials, I purchased a ground rod driving adapter (or whatever it's actually called.) I believe it's a standard part supplied by Erico. At any rate, I got it through
When I bought my first Cadweld materials, I purchased a ground rod driving adapter (or whatever it's actually called.) I believe it's a standard part supplied by Erico. At any rate, I got it through
In these parts, any cable laying on the ground is likely to get chewed sooner or later. Some cables must be tastier than others. The critters on my property like LMR-400UF a lot more than Belden 9913
According to literature from Polyphaser, if the ground systems are separated by more than 75 feet, they don't "see each other", so it doesn't make sense to bond them. I believe the reason is that the