--- In [email protected], "Barry C'" <[EMAIL PROTECTED]> wrote:
> > > I presume its some sort of stacked arrangment , in chich case it will make > that gain at resonance , > Yes, the ASPB602 is four stacked dipoles, just like the DB224. My point again is that resonance is NOT a requirement for an effective and efficient antenna. The wider frequency coverage for this antenna is likely because the dipoles are fabricated from 3/4 in. OD tubing instead of 3/8 in. tubing. For example, most AM broadcast antennas (towers) are not resonant at their operating frequency. In fact, more and more AM broadcasters are diplexing, and even occasionally triplexing. So stations on 820 kc. and 1290 kc. might use the same antenna. Is the antenna resonant? No. There is little or no automatic penalty for using a non-resonant antenna. Ask anyone on this list how well the DB420 works down into the 70cm ham gand. > claims are like water (sic) Very true. The <claims> I make here (6dbd gain and 144-162 mc. at less than 1.5:1 VSWR) are quoted from reputable commercial two-way antenna manufacturer's data sheets and catalogs, not some ham-grade antenna gain claim. Laryn K8TVZ
