> Staggered Beverages narrow the horizontal lobe, to get low
> vertical lobes you need to go long beverages or long and
> stagerred, and down hill if possible.
Not so. Staggered Beverages can place a null almost anywhere
depending on stagger distance and phase. With 180 degree
phase shift you can get a null straight up (and to the
sides). Generally the stagger works best to control or
improve F/B ratio or suppress high angle lobes. It actually
doesn't do as much at all for lobe width.
The high angle lobe generally doesn't contribute much noise.
S/N is largely a function of directivity, and that is not
impacted much by a few narrow spurious lobes.
For Beverages in Echelon (stepped):
http://www.w8ji.com/echelon-log_beverages.htm
73 Tom
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