What if you used a balloon or kite to elevate a LONG vertical wire, fed end-fed zepp fashion. The total height would be one wavelength or preferably more, with the top half wavelength a single wire,
The only way I have managed to keep matching transformers for my 900 foot beverage is to mount the transformer inside a defunct tube base and mount a corresponding socket in a weather-proof box (I u
The activity during cw contests doesn't seem such a problem. There is always ample room above 1900 even during the heaviest cw activity. I sometimes hear routine cw activity near 2000 kHz to escape
That issue has already been addressed and decided (rejected) by the FCC. It is EXTREMELY rare for the Commission to reverse a decision once they have enacted it into their rules. They have proclaime
A few years ago, after a severe thunderstorm, I noticed that all the johnny-ball insulators in the bottom set of guys on my tower were shattered. I have 4 sets of guys, and the upper sets were all in
I have had good success using silver alloy brazing rods, the flat rods about 1/8" wide, and a MAPP gas torch. The copper should be clean, but no flux is required. The rods are widely available at wel
Tom: One question that some readers of this forum might ask: If that is the case, how does an inductively coupled network, where two resonant inductors are separated by a Faraday shield, transfer en
I did with the K6STI loop from Sep 95 QST. I found it to be nowhere near the miracle low-noise rx antenna the authors claimed. It does outperform my other rx antennas on rare occasions, but most of
So, why couldn't that same principle be used to cancel the pickup from the vertical downlead of a Beverage antenna? Just use a piece of coax for the downlead. Ground the shield at the bottom, and pl
I use a full-size quarter wave vertical tower mounted on a base insulator, with 120 quarterwave buried radials. Additional top loading is provided by an 80 mtr dipole attached at the 119' level, wit
Is that a base insulator the tower is shown sitting on in the last photo? _______________________________________________________________ This message was typed using the DVORAK keyboard layout. Try
My tower uses 3/16" guy cable. A few days ago I walked around and inspected the tower, and notice that one of the guy insulators is cracked. Don't know if it was lightning or if someone took a potsho
I posted the following message on Towertalk, and got limited response, but I would also be interested in what some of the members of this list who have had considerable experience erecting towers wou
Using three separate insulators, one in each leg of a guyed tower, is about the WORST possible approach. Most insulating material has excellent compressive strength, but poor tensile strength. With t
... given the frequency Marconi is likely to Newfoundland is 3 1/2 hours behind GMT. 1400-1800 is 10:30 AM to 2:30 PM Newfoundland time, or late morning through early afternoon. That's essentially hi
I say that they are so closely coupled that you might just as well short the top and bottom of the oper wire line, and feed the whole thing as a vertical tee on both 80 and 160. I run open wire feed
I have noticed for the last week or so, the radiolocation beacon on 1953 kHz is missing. Let us hope it's gone for good this time. Don k4kyv __________________________________________________________
Then where are non-DX CW QSO's supposed to take place? I try to avoid the DX window above 1825 unless working DX, and even 1820-25 is active with DX when condx are good. PSK31 and other digital mode
From: "wa4fki" <wa4fki@nc.rr.com> Please remember 160 meters is a shared band, the amateurs share this band with other services. In Region 3, the Loran system operates either on 1850 kHz or 1950 kHz,
I heard a BC station somewhere in the vicinity of that frequency last night. It was very unstable with a rough note, and the modulation sounded more like FM than AM. A parasitic maybe? Don k4kyv ____