449.080 does not fit with the UHF channel selection scheme. Your radio can do 449.0750, 449.01825, 449.0875, 449.09375, 449.1000, etc. which are all 6.25 kHz steps. If it's an older scanner it may only do 12.5 kHz steps, which would be 449.075, 449.0875, 449.1000. Point is you've got to start with a frequency that is a 25 kHz step and add from there, the addition being .00625 or .01250.