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: https://military.ft-rf.com.tw/
• 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.

外媒 Android Authority 最近報導指 Samsung Galaxy 手機會暗地裡對近一萬個的 app 施加效能限制，用以節省用電，並美其名為「遊戲優化服務」（GOS）。然而名單上卻不乏遊戲之外的名字，像是 Netflix、TikTok 和 Microsoft Office 等。Samsung 表示正調查事件。

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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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據報導，GOS 並不會對效能工具 3DMark、GeekBench 5 和 PCMark 等帶來影響，所以像是小編之前做評測時的分數就並沒有問題。然而當使用者在使用有在名單上的 app 時，效能就被指會有折扣，影響使用體驗。有在 Samsung 南韓的官方討論區中投訴的使用者這樣形容：「我花大筆錢來買一台能跑時速 300 公里的車，但卻以安全為由而被限速 150km/h。」

在另一個更明顯的例子，就是 3DMark 的名稱改成遊戲《原神》的話，所得的分數僅有原來的一半，證明了這樣的 GOS 限制是有存在的。據 Android Authority 的補充指，GOS 影響到的手機型號可能有限，像是 Galaxy S21+ 之類的，但新發的 Galaxy S22 系列就似乎未有。

類似的操作其實也不罕見，像是 OnePlus 就為了延長 9 和 9 Pro 的電池續航力，承認有針對部分 app 而限制效能，在事件揭發之後就被 Geekbench 在他們的排行榜中除名。