Low Clearance Alert System for GPS
Low Clearance Alert System for installation on GPS. http://www.lowclearances.com/index.html I don't have experience with this system, but sounds like an alternative to spending $400+ for a new GPS ...
Forum Discussion
WyoTraveler wrote:
aitaonline has a web site listing low clearances. Free web site
Plus data-rate, plus access (assuming you are trying to to this live and not preplaning)
