Each year, the Purdue Outing Club hosts a 2-day orienteering event in state or national forests in Southern Indiana. Teams are given a list of checkpoints that they have to visit, while hiking through the forest, and all they can use for navigation is a topo map, compass, rulers, and pedometer. No cell phones, no GPS receivers. The clock starts at 10:00am Saturday and teams have until 10:00am Monday to finish.
Amateur radio supports the event by providing communications between start/finish and the "fire/water" stations where teams can warm up and fill their water bottles. Oh, did I say that this event is always held on Martin Luther King Day in January? I've seen temps as low as 0 deg F during the event along with snow or ice or rain if the temps are warm enough. This year, the event was held in Morgan-Monroe State Forest, a 24,000 acre property between Indianapolis and Bloomington.
Since the events are usually conducted in areas that don't have good repeater coverage (maybe at the tops of the ridges, but iffy in the ravines), the hams figured out many years ago that 6m FM simplex was the tool to use. Antennas are easy and gear is relatively easy to find. 6m signals seems to propagate pretty well in the hills and valleys.
Amateur radio supports the event by providing communications between start/finish and the "fire/water" stations where teams can warm up and fill their water bottles. Oh, did I say that this event is always held on Martin Luther King Day in January? I've seen temps as low as 0 deg F during the event along with snow or ice or rain if the temps are warm enough. This year, the event was held in Morgan-Monroe State Forest, a 24,000 acre property between Indianapolis and Bloomington.
Since the events are usually conducted in areas that don't have good repeater coverage (maybe at the tops of the ridges, but iffy in the ravines), the hams figured out many years ago that 6m FM simplex was the tool to use. Antennas are easy and gear is relatively easy to find. 6m signals seems to propagate pretty well in the hills and valleys.