FT-RF specializes in producing:

• Military Antennas (Jammer Antenna, Military Horn antenna, Military vehicle antenna, Antenna Telescope Mast, Marine, Panel, Log Periodic antenna, Gooseneck, Whip, GPS, Connector, Adapter...) Please visit the website: 
• Outdoor Antenna and Indoor Antenna: Including Lora Antenna, ISM, LPWA antenna (868MHz antenna aka EU868, 915MHz antenna aka US915, 923MHz antenna aka AS923 and others.), 4G LTE antenna, 5G antenna, Wifi Antenna, Multi-Frequency Antenna, UHF antenna..., RF components, Cables and Connectors. We offer a variety of high-performance antennas for Global LoRaWAN applications, including 868 MHz, 915 MHz, 868 MHz, and 923 MHz... Our product line comprises both durable outdoor antennas and indoor high-performance dipole antennas that are suitable for a variety of LoRa applications, including Helium Network support. Please visit the website here: https://ft-rf.com.tw/. 
• Horn Antenna: RF Microwave Antennas, EMC test equipment (Double Ridged Horn Antenna, Open boundary double ridged horn antenna, Quad Ridged Horn Antenna, Standard Gain Horn antenna, Waveguide to coax Adapter, precision Sleeve Dipole Antenna, Log Periodic Antenna, Antenna Tripod, RF connectors... Please visit the website: https://horn.ft-rf.com.tw/

We provide measurement and calibration Tests, ODM, OEM services for certain products.

We have hundreds of customers from over 60 countries, and to meet their demands, we developed a plant in Vietnam (with a total infrastructure area of 10000 square meters, which includes three major buildings dedicated to operations and production) in addition to the main manufacturing facility in Taiwan. Now, we are focusing on automatic production lines and investing in automation equipment. In the future, we pledge to deliver the highest-quality product in the shortest possible period.

手機送修前，基本上只要能的話都應該將其還原到出廠狀態，來保護個人資料的安全。但如此一來修好後還要再回復手機，也是件相當麻煩的事情。Samsung 現在在韓國推出了一個名為「維修模式」的新功能，應該是個不錯的解決方案。

據 SamMobile 的報導，這個模式可以在「設定」當中的「電池與裝置維護」裡找到，當啟動時，你的個資、照片、訊息與帳戶都會被隱藏起來，而 app 也只看得到出廠時預載的那些。維修完成後，你只要進到同一個選單，用指紋或其他方式確認身份後，就能解除維修模式，將手機恢復正常了。

由於 Samsung 只有在韓國發出新聞稿，應該短時間內這個功能還不會在其他市場推出，而且能使用的手機目前也僅有 S21 一款，相當受限。不過，Samsung 已經確定會將維修模式帶到其他機種上，至於其他地區的話，就只能等等看了。

雙脊喇叭天線
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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. These series are characterized by a huge frequency range and extremely high input powers. With increasing frequency, the gain rises to a maximum of 18 dBi. At higher frequencies, the increased gain compensates for the increasing cable losses.

The advantages of Horn antenna:

- Wide bandwidth: Because the horn antenna has no resonant parts, it can function over a wide range of frequencies.

- Easy waveguide interface: These antennas are very easy to interface to waveguide due to their shape, but they can also be designed with a transition so that a regular coaxial feeder can be used.

- Easy to make, simple design.

The horn is suitable for both transmitting and receiving purposes, especially suitable for EMC and immunity test measurements.

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