Spotchecker,I got my 320 4 or5yrs ago and like it very much. For the price, the unit can do alot. If I remember right,you can for free download a program so you can see what the unit does.If I remember right the 480 is just a little more coin but,you can put a chip,like Lakemaster in it and your all set to go.Back to the 320,I'm very happy with it and would go out on a limb and say it is well worth your time and money.
You'll be happy with it. It's a good unit. I tryed it icefishing once in the flasher mode just for the heck of it,it worked but nothing like my other flashers. good luck
and say it is well worth your time and money.
