Have you read the work of WA1ION? He has done quite a lot with remote variable terminations, and has collected extensive data. I have seen more from him, which a search should pull up easily, but he
Very happy to see you try this, Tree. I hope it works. BTW thanks very much for taking on all the work of running the reflector! Probably most members know how much of an effort is involved. You may
Good going, Trent I'm a bit of a packrat myself, and have dozens and dozens of those power supplies. In addition to saving money, there is one more benefit from hoarding them. Some accessory electron
Eddy I have seen better approaches to this in the literature. BTW I think that linear loading is considered very marginal at lengths 50 percent or less than normal resonant lengths. What has been do
I like resonant, voltage-fed verticals for their simplicity. For field ops, they can be a very quick way to deploy a working antenna. On 40 meters, for example, you're only dealing with 70ft- or 35ft
Cebik mentions Woodrow Smith in connection with a 1948 antenna book. I don't know if this is the same 'Woody Smith', W6BCX, but I suspect it is. Woody Smith wrote an article in March 1948 CQ Magazine
In retrospect, I'm asking myself "was this thread a troll?" I can't tell who the sender is- no call, signature, etc. Could this be bashing calling the FCP a 'counterpoise'? Well, regardless, it's not
I echo W1FMR's question regarding possibly substituting a T200-2 core. Personally, I'd double it up, i.e. either a stack of two T-200-2 or else a T200A-2 which is 1.00 inch thick vs. 0.55 in. for a T
Hi, Jim Remember, when you transmit, those radials are radiating. Worst case, you might even get arcing from any unlucky voltage points along the 'radials' depending on power level and the actual len
http://www.qrpdx.com/ant.html I think these are a great idea for simple, inexpensive directivity. I'd like to throw in the idea of trying this with a Moxon beam. As a horizontal antenna, there is no
(Quote) Hardy and others - thank you MUCHO Beaucoup! All replies were filled with sound suggestions or anecdotal evidence that have helped me put together a trade study that is leading me to.....erec
My best guess, based on what little information you have given here, is that the radio contains a *Seiler* Oscillator. I've not run across any reference to a "Sillner" oscillator prior to yours. The
Hi, Bob I wouldn't risk this, personally, for the small benefit that might be gained. Consider- if your tower ever takes a direct lightning hit, nearby ground currents can be very high indeed. There
No confusion at all, Jim. I know the difference between the two. His reinforcing steel inside his driveway is probably way far out of the realm of Ufer grounds, due to it being small gage conductors.
Hi, Bob I'm really seeing two or more issues here. There has been some debate as to whether or not tying in a ground screen to elevated radials is a good thing or a bad thing. I'll leave that discuss
Hi, Grant Seems like everyone is preoccupied with K5P and the deterioration of 160m DXCC standards, etc. Hi! Here's what I have picked up over the years. My comments address lightning mitigation only
Oooh- here's the deal with that- Although I totally agree with the intent of the petition, and would otherwise add my name to it, I have several problems with this: Please note, I DO NOT intend to st
That's a great suggestion, Paul. Very constructive. Assuming such a transfer from the federal government could be implemented, funding would be needed. So if the worst happens and these stations do i
Hi, All Looking back at some of the better construction articles I've saved in recent years, this one stands out: "The StationPro Master Station Controller" by W8ZR in QST, August 2010, page 30-34. H
A grand solar minimum would be so disastrous for upper HF. Although I'd very much enjoy working Asians on 12 and 10 meters again, it now appears that may be less likely. OTOH it would be of some bene