Efficiency and all aside, there is one big issue that you need to look at: bandwidth. Verticals on 80 typically are specified at 100 KHz. If you are running CW only, then it may not be a very big iss
I believe it is the same manual as that for the A743. At least the A743 manual does have dimensions and directions for 30 meters. I have not been able to make the A743 work very well with my A3 (not
I use a miter/chop saw with a blade meant for cutting aluminum. The miter saw does a better job at holding the aluminum piece than a band saw (at least for me). I think the most important thing here
This depends largely on the QTH. Everglades water tends to be brackish, while water in the Louisiana swamps more fresh. My experience with a HyGain 14AVQ in Miami in the 70s was very good, no matter
It's not the outer jacket that would be the life-limiter in this design, but it definitely contributes to the eventual problem. Heat absorbed by the outer conductor and also that dissipated between t
The catch here is in your last line. 4 inches diameter PVC pipe as a coil form is probably well less than the minimum rated bend radius. The coil will most likely see somewhat wide voltage/current sw
Over the last several years I have spent quite a bit of time trying to get a 40m kit going on my A3 beam. I'm still unsuccessful, but about to give it another go. What I found is very similar to your
It i difficult to install A3 traps backwards, but they certainly can be installed in the wrong place. A good Gate Dip Oscillator will tell you which is which. I have an original A3 (not S) that has s
Robert; I think this is more a personal choice. The stranded wire will be a bit more flexible with all the benefits that technology brings. The same arguments that apply to solid vs stranded wire for
This sounds like a windmill/pump that was prevalent on farms when I was a kid. There are still quite a few of them around. These days the things are made from steel, but I remember the one on my gran
My apologies for that last email. While it was true, I hit the wrong button and it was NOT supposed to be sent. Jack Brindle, W6FB _______________________________________________ ____________________
Why not just go to the list archives where you have nice tools to separate the threads? The other suggestion for those receiving too much email is to change your setting to receive the digest. Indivi
I'd take a good look at the coax itself. As I recall, the antenna has a large coil of coax at the feedpoint to act somewhat as a balun to choke off unbalanced currents. The coax splits out to a Y to
Gosh, Gordon, what's that weird white stuff in the picture? It looks a lot like the slushy chopped ice stuff we get in drinks around here... Jack Brindle, W6FB (ex-WA4FIB) ___________________________
Well Gosh, Gordon, if I had known you were just dumping that great coolant on the ground when we were doing all that packet radio collaboration oh so long ago, I would have suggested you try somethin
Not necessarily. If you go back the last few years you just might find that Hawaii has had its share of the big storms, possibly as many as Florida. They just aren't publicized as well back east. Jac
All these responses, and only one person talked about the quality level of the bit. My experience is that HSS bits wear out quickly, not matter what you do with oiling. I prefer titanium bits - they
Steve, of all people, you already know the answer. Paint them red. Then you get to solve the answer to the riddle: "What's big, red and eats rocks???" And what is today? Jack B, ex-WN4WXF On Apr 1, 2
It's actually worse than that. The original spam on the list was from the guy complaining. There never was a post from Mike on the list. This pretty much defines "trolling." Now can we get back to to