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ground radials
Hello Antenna-Lovers,
I have a "few" antennas on my small lot. I have NOT yet tried a vertical. I know the need for a GREAT radial system is very important for success. Does anyone out there know of a device to lay and set these "wires";off a roll maybe, into the ground ??? Then all you would have to do is CUT them to the length and attach them. Maybe a thin wheel 6 inches or so with a grove on the outter edge........... I don't know. HAS anyone seen anything like this ?? Would it work ? THOUGHTS ??!!? |
ground radials
As opposed to actually digging trenches or even slits in the ground for
radials. I chose to lay them on top of the ground and held them in place with 1 1/2" fence staples. Then I easily covered them with soil from a few wheelbarrow loads. I chose to do this in the dead of winter ( no snow in Mississippi) while the grass was brown and very short. Next summer the grass grew and covered the entire "radial field". I used 72 radials total for my Hustler 5-BTV. Photos here 1. http://www.ad5th.com/5-BTV.html -- 73,Charlie-AD5TH www.ad5th.com "Paladin" wrote in message ups.com... Hello Antenna-Lovers, I have a "few" antennas on my small lot. I have NOT yet tried a vertical. I know the need for a GREAT radial system is very important for success. Does anyone out there know of a device to lay and set these "wires";off a roll maybe, into the ground ??? Then all you would have to do is CUT them to the length and attach them. Maybe a thin wheel 6 inches or so with a grove on the outter edge........... I don't know. HAS anyone seen anything like this ?? Would it work ? THOUGHTS ??!!? |
ground radials
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ground radials
"Paladin" wrote in news:1161097429.261468.307730
@m7g2000cwm.googlegroups.com: Hello Antenna-Lovers, I have a "few" antennas on my small lot. I have NOT yet tried a vertical. I know the need for a GREAT radial system is very important for success. Does anyone out there know of a device to lay and set these "wires";off a roll maybe, into the ground ??? Then all you would have to do is CUT them to the length and attach them. Maybe a thin wheel 6 inches or so with a grove on the outter edge........... I don't know. HAS anyone seen anything like this ?? Would it work ? THOUGHTS ??!!? My basic experience has been that it takes about 120 half-wave radials to make a really GOOD ground. But 16 radials the same length as the antenna's height will get you within 3 db of that. Want those 3db back? Just put up a second vertical and steer the pattern! -- Dave Oldridge+ ICQ 1800667 |
ground radials
Cecil Moore wrote in news:Ia7Zg.15603$e66.2274
@newssvr13.news.prodigy.com: Paladin wrote: THOUGHTS ??!!? Elevated radials? That works, too. And it's actually pretty efficient! -- Dave Oldridge+ ICQ 1800667 |
ground radials
Paladin ha escrito: Hello, You didn't mention the operating frequency. If your plan is to make a quarter wave antenna, the ground system is very important. Maybe there is another option. If it is for the higher bands; Placing the radials above ground does help. If it is a mono band antenna, try to get a halve wave resonance. That has high impedance, en therefore introduces low current into the ground system. The disadvantage is that you have to make a matching network that transforms 50 ohms to the kOhms range. If the height is too much, you may add a coil in the middle. This reduces bandwidth and increases the feed point impedance. Best regards, Wim PA3DJS |
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