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On Nov 7, 6:24 am, Denny wrote:
Now, there are those who like elevated radials Christman and those who hate em Rauch.. Dunno..I can't remember W8JI using elevated verticals.. He may be seeing a large number of people that run elevated, but don't use enough radials for the height in wavelength. Most don't, and then wonder why they don't play as planned.. ![]() Most 160m elevated verticals are still going to be low to the ground as far as wavelength. Sixty feet is only 1/8 wave. To equal a GP at 1/2 wave requires appx 60 radials. This also equals 120 radials on the ground. 1/4 wave up requires appx 8-10 or so radials to equal the same ground loss. On 160m, many think they can elevate a vertical 20 ft or so, and use maybe 4-8-10 radials to get good performance. It just doesn't work that way. At such a low height in WL, they need almost as many as a ground mount. On 160m, a ground mount is really more practical as everything is large. It will be a lot easier to plant 60+ radials on the ground than it will be to raise the vertical to a decent height. This might apply to 80m also for most people.. But on 40m, it's not hard to set up a decent GP, and my 32 ft whip was fully self supporting. Now a dipole or vee at 130 feet is simply not going to work on 160, period... Oh yeah, you can wow the guys at 700 miles with your NVIS signal, but you will get trampled in a dx pileup... Heck, W8JI ran a 160m dipole at 300+ ft.. The verticals still won as a transmit antenna to DX. I think he uses 60 radials, unless he's added more since that time. I forgot what his vertical is.. A tower of some fairly tall height... It ain't no typical ???? brand multiband dummy load on a stick... :/ MK |
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