Exactly . My Point. Mark, AA6DX
----- Original Message -----
From: "Bob Nielsen" <firstname.lastname@example.org>
To: "tower" <email@example.com>
Sent: Monday, June 23, 2003 4:44 PM
Subject: Re: [TowerTalk] LP VS YAGI
> I'd be very surprised if it didn't beat the LP. In a log-periodic
> dipole array, the elements closest to one-half wavelength radiate most
> of the energy, which limits the gain to around 6-6.5 dBd maximum
> (depending on the alpha and tau values in the design), which is about
> what a 3 element yagi will do.
> Of course, outside the fairly narrow bandwidth of the monoband yagi, I
> suspect the LPDA would be the better performer by a substantial margin.
> Bob, N7XY
> On Mon, Jun 23, 2003 at 03:11:24PM -0700, AA6DX wrote:
> > Well .. just FYI .. my Mosely 5 el 20M monobander (46' Boom) would kick
> > britches off of a brand new Sabre Log Periodic .. same power,
> > same antenna height .. located about 3 miles apart. The Sabre was at
> > Wainwright, Alaska, at the com center. The Mosely was at my home, in
> > Pole....I installed both aerials! Multiple tests .. the LP N E V E R
> > came out on top. 73, Mark AA6DX
> > ----- Original Message -----
> > From: "on4kj" <firstname.lastname@example.org>
> > To: "Lee Buller" <email@example.com>; "TowerTalk"
> > Sent: Monday, June 23, 2003 2:36 PM
> > Subject: Re: [TowerTalk] Log periodic vs Steppir
> > > Antenna other then those for a fixed frequency ( such as used in VHF
> > > UHF ) are always a compromise.
> > > LP brings a lot more of metal on the towers , so think it over. There
> > not
> > > that much gain difference between LP and classic beams. Stepper
> > > is a better aproach to the fixed freq antenna, and will be ideal ( I
> > > suppose ) the day they can adjust the distances between the elements
> > the
> > > element lenghts as well.
> > > My two Euro cent vision .
> > >
> > > Jos on4kj