During the last three or so ARRL Field Day events the phone stations have been plagued by interference between the 10 and 15M bands, and to a lesser extent the 20M band as well.
The transceivers for all three bands were within 10-20 feet of each other and all three fed individual band pass filters by means of lengthy coaxial cables. The band pass filters then fed a multiplexer that in turn fed a multi-band hex beam antenna by means of a single coaxial cable equipped with a choke at the antenna. Note: the band pass filters and multiplexer were all mounted on the same aluminum base plate in a plastic box.
Extend rabbit ears to 17” or so for 2 meter use; for 6 meters, use the rabbit ears fully extended and add 12” clip lead at ends of the dipole. (Channel 2 TV used frequencies just a bit higher in frequency than the 6 meter band.) Use power meter, SWR bridge, or internal metering in the transceiver to achieve lowest VSWR. Meant for QRP use only! Plastic Schedule 40 PVC pipe in one-foot sections, with PVC couplings, makes for a simple mast, which can be put in a suitcase for travel or in a day pack for hill-topping/SOTA use. – Pete, N6ZE