Vandalism under Everest
In 2008, the year of the Olympics in Beijing, the Chinese announced that they provided cell phones to camp ABC (6500m). This was called "China Mobile". So it was - they put on from BC to ABC 4-5 powerful repeaters. All repeaters except one, are on the slopes of the mountains surrounding the valley and it is hard to pin down. Therefore, up to the Middle Camp there is a very good mobile connection.
But above the Middle Camp, we found on the trail broken by someone, probably by Tibetan yaksmen, amplifying station (repeater). Solar pelted with stones, antenna and cables were plucked out of touch. Who do it ? Now there is no mobile in the ABC camp, because the signal is fed from the amplifier to an amplifier, and now the chain is broken.
Training in the area of the camp ABC.
During the acclimatization ascent, we surveyed the route of ascent on the southern ridge of the North summit of Everest (Changtsze).