In case anyone is interested in constructing a series fed vertical antenna using a Rohn 25 tower as radiator, I came across a source of components at a hamfest this morning, at very reasonable prices
I wonder if anyone has noticed that the radiolocation beacon that has occupied 1952.3 kHz for years went silent about a week ago. I was hoping this one remaining beacon on the 1900-2000 kHz band had
Oct 8, 2003 - The Canadian Space Agency announced today that it will be contributing to the development of Galileo, the space-based navigation system being created by the European Space Agency - simi
What time of year did the critters eat your coax? I just laid out about 700 ft. of RG-6 from the far end of my Beverage back to the shack. I lay it down about this time of year - after the farmer who
Actually, I haven't had any problem so far with coax lying on the ground or up in the air. My big problem was with directly buried RG-214. I replaced it with "Direct Burial" RG-213. Haven't checked i
...It looks like I have to use a LOT more sod clamps every couple of feet to nail down these radials, before I destroy my entire RF system. Are there other ways to create a ground screen? ... The har
Has anyone noticed the Spanish speaking station on 1900 kHz? It is apparently the 2nd harmonic of Radio Reloj in Cuba. It comes into the middle TN area with good strength and readability when progaga
fishers drift net beacon. We hear many of them from the surrounding waters out here in the KH6 islands. Though more often down between 1800 and 1830, but suppose they can be operated all around that
My solution to the "budget rig" problem has always been to build my own. Over the years I have collected enough "junk" to stock my own private radio parts warehouse, and I have accumulated enough tha
I am not personally convinced that there is really a "cone of silence", but why not use these lengths in case there is such a beast. My impression is that when we adjust the exact length of the bever
From: "i4jmy@iol.it" <i4jmy@iol.it> By the way, depending the diameter of the coil, line lenght, and coil position, I'm afraid those 6 turns are not enough to have a good choke on 20m. Expecially in
John K9DX wrote: Most of this discussion revolves around contests ... As for daily operating ... I agree there is little use for the window... the band is unfortunately not crowded except in contests
If you have hot-dip galvanised sections, there is no need to electrically bond the sections, according to the Rohn tower company. I have used a Rohn 25G tower as a vertical for nearly 20 years withou
Why the ARRL constantly ignores 160 is beyond me. In the 70's, Prose Walker told W2EQS and myself in written correspondence that 160 could be fully returned to amateurs if there was any push at all.
"I have started looking around for an old low power (<5KW) AM transmitter to mod for 160. Should I, instead, spend $$$ on a new modern 160-meter 2KW amplifier? I do have a SB-220 worthy of mods." Do
The so-called end feed is an old myth that has been around forever. My very first antenna was just that, and I always wondered what that second feedline wire would do when it just abruptly ended, unt
That's an excellent way to put the problem in perspective. That's why J-poles have considerable feedline radiation, and why "no-radial" verticals and end fed Zepps have such horrid problems with RF
I used 1/8 inch rope. I calculated that it would be well within it's break limits but I neglected to allow for stretch vs. stress. OH2BO hit the nail on the head when he suggested the rope must be we
If you think about 160M, it was historically the "bastard child" of Loran for many years. Finally around 1980 we got the full band back and then, some time later we got the upper band back at a full
Someone on these pages said this week that you can never have TOO MANY Rx antennas for 160M - I would agree with that assessment. You just NEVER know what will work best when listening on Topband....