A股卫星导航板块盘初拉升，天奥电子、星网宇达双双涨停

Group 1 - The A-share satellite navigation sector experienced a significant rise at the beginning of trading, with Tianao Electronics and Xingwang Yuda both hitting the daily limit up [1] - Zhongwei Electronics saw an increase of over 10%, while other companies such as Changjiang Communication, China Satellite, Weicetest, Mengsheng Electronics, and Shengbang Security also experienced gains [1] Group 2 - The formation of a MACD golden cross signal indicates a positive trend for certain stocks [2]