My gut feel is that even if an antenna existed that you could buy, it
would be a major compromise on (say) half of the bands. Depending on how
unscrupulous the seller was they may (say) make gain claims on lobes
that are nowhere near in the direction you want! Its relatively easy to
load a multiband antenna (for low VSWR etc). Its another matter to make
it radiate where you want it to.

I's personally look at the two band market and get two antennas. 2/70
for example seem to have some good designs. If you feel like building
have a look at an extended double zepp design with a larger hairpin section.

Cheers Bob VK2YQA

wrote:

I'm looking for an antenna for a Yeasu 8900R. 4 band base radio. Its
not a base radio but I'll be using it as such.

thanks