hopefully by 'quad' you mean a 4-band antenna. it could be a bit of a
problem with low bridges and parking garages otherwise. and yes, an antenna
doesn't care what kind of modulation you use, though you may want to
lengthen it a bit if its tuned up near the top of the band for fm repeaters
and such.
wrote in message
...
I'm thinking of getting a quad antenna for my car. I believe its 10m,
6m, 2m, and 70cm. I wondering if the 10m will work with ssb.

Just curious.