> Laryn, Thank you, I am going to try the different element to element spacing you mention here and see how well the VSWR does. "stay tuned"....
Laryn Lohman" <lar...@...> wrote:> > There aren't absolutely specific element to element spacing dimensions for > dipole antennas. I refer you to message #89961. Here is an excerpt as > written by WN3A: > > On-horizon gain tends to peak at a little under 1 wavelength for the > intra-bay spacing. As you go above 1 wavelength, the elevation pattern > quickly starts to fall apart. As you go under 1 wavelength, the peak gain > gradually starts to decrease as the major lobe gets fatter. At > half-wavelength spacing (i.e. element tips almost touching each other), the > gain is on the order of roughly 2 dB below what it would be as compared to > the full-wavelength spacing case. A spacing of around 0.9 wavelengths at > the highest-rated frequency is used for many VHF/UHF dipole arrays as a good > compromise. > > Laryn K8TVZ > "motarolla_doctor" > wrote: > > > > Jeff, sounds correct both my and k5in's antennas look the same from the > > photos. > > > > Were there any dimensions for these older, "flat element" BD410 antennas, > > in particular, the element to element spacing? >
