Fly the Team Iceshanty Flag! Iceshanty Proshop
Can't speak for the phone, only the dedicated handhelds and integrated locators I have and it all depends on your satellite locks. A good day can have you literally stepping in you ice hole from the previous day after a 10" snowfall. Other times it might be as much as 12 - 15 feet.
Dick, does Mary know of this magic box?