After the three batches of communication equipments reached the earthquake-hit regions, on May 21, the technical support center of North China ATMB once again received the instructions that they should quickly transport 4 Channel VHF to the disaster areas. The leaders and relative technical staffs of the equipment maintenance station immediately drove to the Western Hill VHF site to dismantle the equipments. They dismantled all the required equipments until 22:00 pm, and transported them from Capital Airport to Chengdu, Sichuan on the next day.

North China ATMB totally delivered 9 transmitters/receivers, 3 cabinets and 8 transmitters/receivers filters, 2 arresters and other accessory materials to the disaster areas. It's hoped that these equipments can play the biggest role for the earthquake relief work.