Topband: Height of Beverage-Driveway

[Jon Zaimes AA1K]

  I have done this over a driveway here. In fact it is a 935-foot  long 
pair of broadside phased Beverages in which one goes over the driveway 
and at that spot is elevated to about 14 feet high for a distance of 
about 50 feet (normal height for the rest of it is 10 feet). Perhaps it 
wouldn't have made any difference, but I raised the other element a 
similar amount at that spot even though it wasn't over the driveway. 
This antenna works extremely well toward JA.

>>    I'm running a beverage about 10 feet high which must cross a driveway. Now 10 feet is too low for the occasional truck so what I would like to know is what would be the effect on performance if I raise it to 13 feet or so just to clear the driveway?
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