"Harold E. Johnson" wrote in message
news:MqqCc.74927$2i5.40371@attbi_s52...
Hi Dale.

I've also seen the term mis-used by manufacturers when they mean
omnidirectional. The antenna may have performance 20 dB down from
isotropic,
but they'll call it unity gain when it just has the same "gain" in all
directions.

W4ZCB


i thought the manufacture antenna gain specs were referenced to the
radiation from a heathkit cantenna which has been wrapped with chicken wire
then placed in a metal trash can