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#1
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It will work, but you have to treat the roof as a psuedo
mobile setup, as it's not resonant. Well... Unless you get lucky. I'd just ohm out the roof and see if it's connected before I started trying to bond it together. The performance is semi iffy... In general, radials that are resonant would be better, but that assumes there are enough of them for a given height. It's quite possible some bands may be fairly poor, if the roof shows a high impedance. IE: much like trying to use 1/2 wave long radials elevated... MK |
#2
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I have a Fluidmotion BiggIR on a 3500 sq ft peaked aluminum roof.
Feedpoint impedance near 50 ohms at resonance can be achieved in such a configuration. 73 H. NQ5H wrote in message ups.com... It will work, but you have to treat the roof as a psuedo mobile setup, as it's not resonant. Well... Unless you get lucky. I'd just ohm out the roof and see if it's connected before I started trying to bond it together. The performance is semi iffy... In general, radials that are resonant would be better, but that assumes there are enough of them for a given height. It's quite possible some bands may be fairly poor, if the roof shows a high impedance. IE: much like trying to use 1/2 wave long radials elevated... MK |
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