What you've got is one antenna with two feed points.

Any use of the interaction will result in a directional pattern, making
the signal stronger in some directions and weaker (perhaps a great deal
weaker) in others. I suspect you don't want that.

The best solution would be to open-circuit the unused antenna at its
feedpoint. This could be done directly with a relay, by short-circuiting
the rig end of a feedline which is an odd number of electrical
wavelengths long, or open-circuiting the rig end of a feedline which is
an integral number of half wavelengths long. It would be a good idea to
make the switch(es) operate from the rigs' power, to prevent
accidentally transmitting into a shorted or opened feedline.

The two bands are too close to make most other methods impractical.

Roy Lewallen, W7EL

Merlin-7 KI4ILB wrote:
OK, the next problem I will be haveing is The interaction between my 10
meter whip and the 11 meter whip.
Removeing the CB is not an option, I need it for work.

I will be adding the 10 meter whip to a 4door Dodge ram pickup.The two
antennas that are on the truck now are mounted with stake hole mounts (the
holes in the bed rail behind the driver and passenger)

The 11 meter and the 10 meter rigs will not be on at the same time.

How would you place the antennas to keep the interaction as low as possible
or use the ineraction in some way.

Thanks
joe