That's an urban myth. Yes, verticals have little or no high angle radiation, but that only matters if you're trying to ragchew within a few hundred miles. See the links I posted for some real science
a dedicated RX ant away from the TX vertical will be a chore. Yes, that's true. But so will almost any practical antenna. Antennas fed with open wire line are also generally bad for receive noise bec
Author: Tom_N2SR via TowerTalk <towertalk@contesting.com>
Date: Tue, 25 Oct 2016 19:35:54 +0000 (UTC)
Go back and read K9YC's articles about many short radials close to the feedpoint. Isn't the idea to reduce/eliminate losses? When I added added the HF2V, I had about 4 radials and the BW on 80 w
I have an HF-2V with 32 - 40 foot radials under it. My bandwidth on 80 was about 30kc's until I did the top hat mod. Now it's more like 80 or 90kc's. Mike - KI8R -- -- *Michael Murphy - KI8R* mike@ki
Exactly right. With on-ground radials, more copper is better, longer is better. I covered this in great detail in the piece about 160M. When I added added the HF2V, I had about 4 radials and the BW o
Author: Tom_N2SR via TowerTalk <towertalk@contesting.com>
Date: Tue, 25 Oct 2016 20:36:28 +0000 (UTC)
I forget how big the area was, but it wasn't much bigger (if at all) than 40 feet x 40 feet. I laid down as much copper as I could. See my initial post. I created a switching scheme to switch b
one more - I used 2x 20' by 3" irrigation pipe and a top hat for 80m. Two guys top and at 60% high would be better than mine at top and 50% which coupled wind induced vibrations into both lengths. Th
Jim, You said : "Also, it really helps to raise the antenna and use elevated radials. While it's BEST for those radials to be resonant, I'd put in as many shorter ones as I could before giving up." T
That should work, it's probably no different than using a K2AV counterpoise. John KK9A Jim, To me anyway this begs the question would it be an advantage to use four elevated radials (too short) and p
I agree that a K2AV FCP is a good idea. In essence, you want to divide dimensions by 2 to go from 160M to 80M, but I suggest that you mail Guy directly and ask him. Our check his website. 73, Jim K9Y
John, Yeah, I see what you are saying. On my small lot the longest radials I can have is about 60 feet. Four elevated 60 foot radials with loading coils for resonance, it might be worthwhile trying.
Bob K6UJ I agree that a K2AV FCP is a good idea. In essence, you want to divide dimensions by 2 to go from 160M to 80M, but I suggest that you mail Guy directly and ask him. Our check his website. 73
The original website was run by W0UCE who is now an SK and the site is no longer there. The 160M dimension was 33 feet on each side of the feed point and the 80M dimension was 16.5 feet. 73, Larry W6
I have saved almost everything that W0UCE had on his pages regarding the K2AV FCP and what K2AV has written on it if anyone needs that info. I use 2 of them on 80 and 160 with great success. 73 Dwigh
Just happened to trip over this thread looking elsewhere...Jim's post snagged my Google. Thimble answer: The length goes from 33 feet either side to 16.5 feet either side. The spacing is still 4 inch
Given all the information I think we are going the inverted L route with a dozen 66 ft radials. John J. Nistico 911 Electric Inc. 516.325-8993 ________________________________ From: TowerTalk <towert
Guy, Thanks for the info ! Bob K6UJ The length goes from 33 feet either side to 16.5 feet either side. The spacing is still 4 inches between folds, elevation should still be 8-10 feet if you can get
I'd like to make one for 40m, Guy. What would be the nr. of turns on the Transformer? I assume the FCP length would be just half the 80m version? Thanks 73 Dwight NS9I The length goes from 33 feet ei
Nonsense. It's not an "urban myth" at all. I have a friend on 75 m. who's only antenna is a vertical, base fed over a ground system, and he's around 60 miles away from me and is usually at the noise
Rob, You are missing the point. You say nonsense but the information you provided agrees with what Jim stated. hihi Jim said: "verticals have little or no high angle radiation, but that only matters