1 FT8900R 2 CR627B triband 2m/6m/440 antenna 3 Comet SBB7 Dual band antenna 3 10m antenna I dont want to lose my 800mhz recieve for our area law enforcement otherwise I would just use a duplexer/combiner/splitter (pick your choice of nomenclature) and use 2 antennas. The triband and a 10m antenna. But the duplexer will kill the 800 recieve.. Soo how about using a triplexer and a duplexer. The FT8900R would output into a Comet 4310c triplexer. LPF is 1.3mhz to 150 BPF is 350mhz-500mhz and HPF is 840-1400 mhz. The SBB7 would connect on the HPF to work as my recieve antenna on 800mhz. Yes I know its not a dedicated 800mhz antenna but it actually works fairly well, as I had used it before I got the triband antenna. No antenna will be connected to the BPF output, and the LPF will feed a Comet CF530 duplexer. I can then split the triband antenna on 1 output and the 10m antenna on the other output. I know it sounds overly complicated and it probably is, sooo any suggestions, The quad band antenna for the 8900R isn't an option.. The other option is a 2nd radio just for 10m. I do have a radio shack HTX-10 I "could" put in the car but I dont know if I really have enough room for it.