[Towertalk] Anyone ever make staggered monobanders

[btippett@alum.mit.edu (Bill Tippett)]

Hi Jack!

WB4ROY wrote:
>Ive modeled some and it seems to work just fine and Ive got the boom
down to 48ft with good 10dbd gain on 10 thru 20 including WARC bands.

        If you got 10 dBd (i.e. 12.15 dBi free space gain) on 20 meters 
using a 48 ft boom you made a mistake.  The best of these 45-55' boom
monobanders is 10.53 dBi, which is 8.38 dBd:

                        http://www.cebik.com/5l20.html

Using Yagi Optimizer, the best I can see is ~11 dBi on a 48' boom if
only Gain is optimized (zero weighting for F/B or SWR).  Just a 
reality check that your modeling is incorrect or you made a mistake 
in what you stated (dBd instead of dBi).

                                                73,  Bill  W4ZV