I've used Chirp to program the Yaesu VX-170 2M radio, I have two XV-177s, which is the 440 version on the 170, is Chirp able to handle the 177 (I don't see it listed), when I tried reading the radios as a 170, it said out of band for this radio, so I'm guessing no.  Any  advice from the group would be appreciated, I'm setting these up for a Volunteer Search Team, and don't want to spend $45 just to prorgram two radios