--- In Repeater-Builder@yahoogroups.com, "Steven Samuel Bosshard \(NU5D\)" <[EMAIL PROTECTED]> wrote: > > What I don't understand is how at times the DB224 is rated at 4.5 dBd, then 6 dBd,
Hmmmm.... that's a new one. Where/when and what frequency range have you seen the DB224 rated at 4.5dbd? > and the DB304 (twice as much aluminum) rated at 6.1 dBd. over a span of 30 years...de nu5d Omnidirectional gain is achieved by vertically stacking more "levels", if you will. Doing what they've done with the DB304 does not add more levels. So no more gain. To be honest, I'm not sure what the reason is for the double dipole arrangement. I suspect it electrically makes the mast <disappear> since each pair is symmetrical with the mast. Someone else I'm sure has a better explanation of this design. Laryn K8TVZ
