Reply #117: Try again

[sandnsea]

"In the case of the three climbers on Mt. Hood, Wheeler said an MLU would not have helped during the severe weather because rescuers still could not reach the climbers’ location. “The MLU might have enabled them to locate the snow cave one day sooner,” said Wheeler."

http://www.kgw.com/news-local/stories/kgw_121906_news_locator_units.26bbe60c.html

Further reading will explain that there are limitations to all technology, and again, we don't know exactly what they had, what might have broken, what might have gotten lost, etc.