Hi Clive, If this is your 40 meter antenna, it is already working pretty well. I'm assuming (since you didn't specify) that you are talking about the radial field surrounding the base of a full size
We should probably get used to this from tower companies for the time being. They have more high profit margin commercial work than they can possibly do until all of the cell/PCS sites that will tole
I had a very bad experience while trying to help a friend with his motor home mobile installation of an SGC tuner. basically, the problem is as folows: 1. If the tuner is set up, tuned to a fixed set
To: <towertalk@contesting.com> Snip... We did too for the first failure. Snip... This is also true of the IC736. But beyond this - after the first failure, we set the AM carrier power output limit t
Hi Joel, I wasn't trying to "tar" them all with the same brush so to speak. But I do think that for a time they will all be in the same class which is called "busy". Unfortunately for us, it is busy
To: <towertalk@contesting.com> Hi J.P., I think that analysis is a bit misleading. The matched loss per 100 ft. in 3/4 inch 75 ohm CATV line at 30 MHz is 0.35 dB. We have been discussing 200ish foot
To: <towertalk@contesting.com> SNIP... OOPS! I mistyped a number. The change is not significant to the discusion but I'm sure there are those who will worry about it. The following insert from the pr
Jim, Don't bother reposting. I already have forwarded this reformatted text. Tabs are a bit iffy for email readers. 73, Eric N7CL -- Start of forwarded message -- From: "Jim Reid" <jreid@aloha.net> T
Hi Tom, Yes, I realize that _all_ of my comments apply specifically to the antenna I was describing and _only_ that antenna. They are not intended to be interpereted as "J-poles are generally wonderf
Hi Kurt, Congratulations on the new call. It is _way_ more cool than the old one ;-) To: <towertalk@contesting.com> Specifically regarding penetrox: There are several different products sold under th
Hi Kurt, You have a good point. It would be useful to point out a source. The stuff is really not hard to get and $20 worth will last the average guy a lifetime. I've pointed out a source in my comen
To: <towertalk@contesting.com> I would like to add to this that you should be VERY careful about approaching lexan or any polycarbonate plastic with ANY volatile hydrocarbon solvent or paint/adhesiv
Hi Pete, Actually, the answer is a little of both. For mutual coupling to ground and what that does to element tuning and SWR, the antenna will think its at about 60 feet (assuming it is otherwise pr
Hi Steve, Sorry it took so long to bet back to this. Comments below. To: <towertalk@contesting.com> I'm not quite sure what you mean by "optimized" in this context. But judging by the results of your
To: <towertalk@contesting.com> Speaking as someone who has been through the learning curve for several of the expensive professional capture / layout packages, I would not consider the lack of a sym
Hi Kurt, Mike, Well I asked the A&P guy. He said that there are certified markers that can be used. He said they looked to him just like Sharpies. So, since this applies to metal marking which we do
To: <towertalk@contesting.com> There are several variants of Loctite and it is important to use the correct one for the application. Permanent Loctite (usually red for the range of thread diameters
Hi Jonathan, The answer to your question about how much ground is required to dissipate a strike safely is: "It varies". The problem is that this requirement is profoundly affected by so many variabl
Hi Bruce, Yes, the IEEE std is a good resource - one of the best. And I might as well take this opportunity to (one more time) point to a very exhaustive resource that includes references to all the
Hi Dick, Here is one source of this two volume set: DOD Single Stock Point Commanding Officer Naval Publications and Forms Center 5801 Tabor Avenue Philadelphia, PA 19120 The DoDSSP Special Assistanc