August 31, 2015, China Classification Society Zhejiang branch and Ningbo Hongzhou  Electronic Development Co., Ltd  held a radio survey training course at Ningbo Chi Yang Electronics Co., Ltd.   More then 20 surveyors from the China Classification Society Zhejiang branch join in  the training course with Hangzhou electronic engineers. China Classification Society Zhejiang Branch Director Chen Hang and Hongzhou Engineer Ju Xinchao made a wonderful speech  on  the theory and the actual operation of the radio surey.  The actual operation of the part of the ship GMDSS equipment is demonstrated in the field, and discuss  on  radio surey, so that everyone benefit a lot.