No. A properly designed lumped inductance is better than linear loading. That's why many 80 meter Yagi owners have upgraded to W6ANR's aftermarket loading inductors, replacing the original linear loa
At 12:50 PM 11/5/2003 -0500, K3BU@aol.com wrote: In a message dated 11/5/03 12:45:42 PM Eastern Standard Time, tongaloa@alltel.net writes: <<Interesting charts, but in the real world wouldn't one be
At 02:54 PM 11/5/2003 -0500, david jordan wrote: Yes, you would modify the stepper such that when the copper element inside the fiberglass tube reached full extention the copper tape would make a con
At 02:43 PM 11/5/2003 -0500, Matt Beer wrote: This may sound strange but, what is the root of the term guy wire or just singly "guy" as a support. Where did it originate from? guy n. A rope, cord, or
Could you describe your tuning algorithm?? As you say, the real world has interactions that are difficult to model accurately. Is it one of those procedures where you start with setting it to the nom
At 04:30 PM 11/6/2003 -0900, Paul Carr wrote: There is also the option of the flag pole vertical. That might keep you out of trouble with the homeowners association. And, to extend a bit, the phased
At 10:04 PM 11/6/2003 -0600, Wes Attaway (N5WA) wrote: One other thought ..... I am moving soon to an area that forbids "transmitting or receiving towers". Antennas are not mentioned. Do your covenan
At 02:22 PM 11/7/2003 -0500, Alan Beagley wrote: ISTR reading that *all* grounds must be connected together (according to the National Electrical Code). Safety grounds yes, but not signal common poin
Some other things to consider... How are you attaching the tubes to each other? Welding? Epoxy? Bolts through? The stress distributes differently in each case. How much bending can you tolerate? You
I'd be very interested to hear of anyone who has actually collected on one of those "attached equipment warranties".. The verbiage in the ones I've looked at have a lot of weasel words about inspecti
dealer. any Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA. _______________________________________________ See: http://www.mscomputer
discourage anonomous pirating. I have no real comment on the rest of the content in these posts, but.. This seems a perfectly reasonable thing to do. The program still does what you'd expect, right?
I like 4nec2... Free, easy to use editor, uses standard NEC2 back ends, has fairly nice graphic rendering, includes an optimizing engine, although I don't know how well it would work for optimizing a
The advantage of the scheme where you put power to the relay common, and switching the grounds to actuate one or more of the relays, is that the switching can be done by open collector NPN drivers. L
Indeed.. 500 segments won't get you very far. However, something to consider when looking at paying for modeling tools (nec4win, eznec, HFSS, Symphony, etc.) is that if you are investing $10k in mult
Just got my new ARRL Antenna book, which I bought primarily for the copy of HFTA. Here are my first impressions.. 1) Why must they provide nagware copies of software that have time limits? I understa
"save you that Been there done that, wrote and sold software to do it... My basic point is that this is something that the review process should have addressed. I don't know what the production budg
A call to your local building department will usually get the information about what sorts of "chemical anchors" they like to see. Not that you actually will be getting a permit, or tell them what yo
Call up places that specialize in hardware for marine applications. I have seen 1/4-20 copper hardware but only in surplus places. McMaster Carr is another possibility. At 12:39 PM 11/11/2003 -0600,
At 10:02 AM 11/12/2003 -0800, Dino Darling wrote: Hello Comrades! I doing some leg work for the possibility of placing a 40' self supporting tower on the flat roof of a gym for a communications stati