Hi Mike, No problem. I thought I ... nevermind, I guess I need to go back and read everything again more carefully. :-) But later. I'm listening on 160m right now. No offense taken, my friend. ______
Look at it as 2 ground planes with the lower feed point 1/4 wave above ground along with its elevated radials which should make it pretty much ground independent according to what has been published
What got my attention was seeing what appears to be stacked groundplanes at the Manchester NH airport. I dont want a collinear or vertical dipole. The basic ollinears are 2 half wave elements fed at
Gee, I wonder if Carl had any idea what a "catfight" he was going to start, when he began this thread? For my money, if I had enough support height to support two 1/4 wave ground planes, one above th
Well, Carl You just proposed a total height of 3/4 wavelength, it seems. Do you have that much height? Charlie, K4OTV Look at it as 2 ground planes with the lower feed point 1/4 wave above ground alo
I don't know, Carl. I'll leave it to the experts. What I do know is I have made several attempts to erect a vertical for 80 meters near my 160 meter tower, using the same radial system. At 10 foot sp
Well, some quick mental arithmetic suggests to me that 12' is approx. 0.025 wavelength at 160 and 6' would be approx. 0.0125 wavelength. Pretty tight coupling it seems to me. - even if we double thos
Carl and Charlie, I am not sure it would even be close to practical or even doable, but I remember seeing an old book on verticals written by a prior Navy Captain, I believe. He had a very interestin
Hi, Mike I remember the guy that you are referring to, but it's been so many years that I don't remember his last name tither. He published a book via either ARRL or CQ mag. A collinear 1/2 wave over
Thanks, Tony Yes, that's the one! I was pretty sure that it was published by CQ, but I was having a "senior moment" and couldn't remember Paul's last name! J 73, Charlie, K4OTV From: Anthony Scandurr
Tony, Thanks...,. that is the one. As I recall a very good book "from my youth." It was one of the first antenna books that I remember reading in my early ham years...... I think its original publish
Hey...... IF the tower is tall enough for that duty (3/4 wave tall), then you could put that "skirt" on the "middle" 1/4 wave, as it were, and you got 'er...... Could he be that lucky? I have to admi
But, how would we feed it" Unless the tower has a base insulator?? Maybe a shunt feed might be possible? Charlie, K4OTV --Original Message-- From: Topband [mailto:topband-bounces@contesting.com] On B
I have the book. It is among the first antenna books I bought in 78 when I was first starting in this hobby. The book is The Amateur Radio Vertical Antenna Handbook by Capt. Paul H. Lee, USN retired
I don't know, Carl. I'll leave it to the experts. What I do know is I have made several attempts to erect a vertical for 80 meters near my 160 meter tower, using the same radial system. At 10 foot sp
Ooops I meant close coupled resonator. 73 Say Paul I am going to try the same setup except ground the 80m vertical as a close (5') coupled radiator and see what the feed impedance of the 160 vertic
Charlie, just to complete my thought..... Yes, I would use something along the lines of a gamma feed to a grounded tower. There are probably better matching techniques, but that would certainly be a
Hi, Mike Yes, after I wrote that coment yesterday, I did realize that the lower ground 1/4 wave element could, indeed, be shunt fed. I guess I'm more used to collinear arrays at VHF and UHF where the
Now the smoke has cleared-sort of I have the Vertical Antenna Handbook, by Capt.. Paul H. Lee USN (RET) N6PL second edition. I also had the first edition way back then/when. I Built the Mark II on pa