On a remote mountaintop in northern Iraq, 10 miles east of the town of Tallafar, soldiers are getting ready to leave their outpost and join fellow soldiers here, and they're doing it the way soldiers in the 101st Airborne Division (Air Assault) have been doing it for years: by air. Soldiers from the division's 501st Signal Battalion set up a retransmission site eight months ago on a mountain close to Highway 1 to boost communications between convoys and units' headquarters, said Sgt. Lyle Follmer, radio team chief. The soldiers had to find the area with the best reception, and that...