测向

• Automatic radio direction finder
  无线电自动测向器
• Very high frequency direction finder
  甚高频测向仪
• Crdf cathode - ray direction finding
  阴极射线测向机
• Visual radio direction finder
  目测式无线电测向仪
• Very high frequency direction finding
  甚高频测向
• Very high frequency direction - finding
  甚高频测向
• Adf automatic direction finder
  自动测向器
• General specification for the short wave three - channel receivers used in direction finder
  短波三信道测向接收机通用规范
• Automatic radio compass
  自动无线电测向仪
• Airborne direction finder
  航空测向器