The horn antenna is a broadband passive device, shaped like a pyramid horn, referred to as a TEM antenna, which guides the beam of radio waves at a precise frequency. FT-RF Double Ridged Horn antennas have frequency capabilities ranging from 400MHz to 40GHz depending on type and style.

FT-RF can adjust the connector and increase the waterproof mechanism and can be combined with multiple antennas.

The antenna main body with the bracket using CNC precision manufacturing, and adopt a more weather resistant material aluminum material and the surface through the 6061 and 7071 Aluminum special handling to prevent oxidation.

FT-RF antennas are designing and manufacturing in Taiwan with an RF network analyzer and adjust the testing laboratory to ensure the stability and quality of our products.

With more than 15 years of experience in researching, developing, and manufacturing this line product. FT-RF Antennas are lightweight, easy to install, and design for a quick test, with an average gain and factor design and VSWR. They are suitable for RF chamber, antenna calibration, RF component testing, interference antenna, signal collection antenna, and characteristics of various RF designs. In addition, they have high power, low F/B, durability, and a three-year warranty.

記者王丹荷／綜合報導

劉德華、梁朝偉主演的《無間道》，成功掀起香港以間諜、臥底為題材的警匪片新風潮，更被好萊塢大導演馬丁史柯西斯翻拍成好萊塢版《神鬼無間》，並贏得奧斯卡最佳影片。2002《無間道》、2003前傳《無間道Ⅱ》和2003續集《無間道Ⅲ終極無間》3部曲進行數位修復，將於12月30日跨年檔上映，讓新舊影迷於大銀幕重溫巨星風采及經典電影跨越時代的魅力。

《無間道》集結多位知名演員，且以緊湊劇情和乾淨俐落的敘事風格贏得口碑；在2000年代前期，香港電影低迷期中成為救世之作，橫掃第22屆香港電影金像獎最佳電影和第40屆金馬獎最佳劇情片、最佳男主角、最佳男配角等多個獎項，並獲香港電影金像獎協會票選為「百大最佳華語片」。

《無間道》梁朝偉（右）、黃秋生。 （華映娛樂提供）