[PDF] Practical Antenna Handbook - EA1URO
Of course, above the VHF region, weather conditions add attenuation .... ( especially in the south and southeast), and from 1.25 to 1.45 in the winter months . ..... Variations occur not only over the 11 year sunspot cycle, but also diur- ...... commercial antenna manufacturers for VHF and CB collinear vertical dipoles, but is.
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on5au's website is on5au.be