上网转了一圈 人家说:
Conclusions•Beverage is still a strong performer in receiving low band signals•If you have the space, use them!•Loop-like travelling wave antennas K9AY, Flag, EWE•Take off angle is too high•Need a good preamplifier•Performance is only modest•> Not my choice•Phased short vertical arrays with pre-amps at each element•Good performance•Different configurations possible•Phasing easy to arrange•Fit to smaller space than Beverage•> My next projec by OH1TV