8.2 to 12.4GHz

WR90 Standard Gain Waveguide Horn Antenna, 8.2 to 12.4GHz, 15dbi, SMA-Female connector, UBR Flange

不只南韓地鐵手扶梯發生故障，去年台北捷運新埔站也發現過類似事件。當時手扶梯因為突然失速下滑，導致30名旅客反應不及往後摔倒，有4人受傷。北捷事後回應，是因為煞車迴路故障導致煞車失靈，後續也大動作全面強化保養電扶梯，防止意外發生。

WR90 Standard Gain Waveguide Horn Antenna, 8.2 to 12.4GHz, 15dbi, SMA-Female connector, UBR Flange

以下內文出自: https://tw.news.yahoo.com/%E4%B8%8D%E5%8F%AA%E5%8D%97%E9%9F%93-%E5%8C%97%E6%8D%B7%E6%89%8B%E6%89%B6%

• WR90 Standard Gain Waveguide Horn Antenna, 8.2 to 12.4GHz, 15dbi, SMA-Female connector, UBR Flange
• EMI/EMC testing, direction finding, surveillance, and antenna gain measurements.
• Calibration devices that measure the gain of other antennas