I had both of these radios, still have the CAT model. While at the Dayton hamfest in 02 I asked the yaesu people at there booth Why not have a FT-900D, put in dsp, all the filters ect and you would have a real winner, All three of them looked at and agreed. I have ran the radio mobile a lot and with the auto tuner and a bug catcher ant. Always got great reports. I had 2 of these, one 900at, and one 900ca and Its still working great after 14yrs.