台灣人仍愛用現金？內行曝關鍵
In broadcast engineering, a panel antenna is a directional antenna that is widely used to obtain a wireless Internet connection.
Directional antennas receive and broadcast a signal in only one direction, resulting in better signal quality.
Panel antennas, for example, are used in underdeveloped countries to improve the range and functionality of wireless Internet networks.
A panel antenna is shaped like a panel and is typically fixed on a mounting bracket on the exterior or inside of a building. It can also be mounted on a swivel mount, allowing the user to adjust the antenna for optimal signal reception. This type of antenna is usually one-directional, with less mobility side-to-side and up-and-down than an omnidirectional antenna, which can swivel and entirely change its location. Two U-bolt brackets and waterproof were supplied in one piece of packing
近幾年受到疫情影響，各國的行動支付開始迅速發展。不過就有民眾觀察到，在台灣多數人仍「偏愛用現金」大於行動支付，而疑問曝光後，也立刻引起各路網友點破關鍵原因。
一位網友在論壇PTT上提出疑問，在疫情發生後，歐美各國都開始大力推廣行動支付，減少接觸風險，支援的店家比例大幅提高，連路邊攤都能刷卡，甚至還有地方以防疫為由拒收現金，「但號稱防疫模範生的台灣，大家口袋依舊一堆零錢，為什麼台灣仍熱愛使用現金？」
疑問曝光後，立刻引來不少網友回應「用現金交易，最難留下紀錄，隱私最高」、「日本、德國也都是很愛現金交易」、「台灣的行動支付只能綁信用卡，我就不太愛刷，因為怕忘記繳錢」、「電子支付多未必是進步的象徵，通常是其他支付工具欠缺的國家」、「個人認為不要偏重任何一種，現金要用，電子支付也要用」。
另有不少用戶解析關鍵原因「台灣行動支付種類太多，裝一堆APP太麻煩了，還不如鈔票直接」、「支付種類太多，沒有整合，使用起來真的很麻煩」、「機器設備不普及，店家也不喜歡被查稅」、「台灣ATM到處都有，甚至比能用行動支付的店家還普及」、「台灣還有很多店家都沒有行動支付機器，尤其小吃店這種日常最常光顧的」。
700MHz to 8GHz Double Ridged Broadband Waveguide Horn Antenna version 2
Model No: HA-07M08GA2-NF
Frequency: 700MHz to 8GHz
Gain: 6 dbi to 17 dBi
LxWxH: 661x430x445mm
N.W.: 8.1kg
-3dB Beamwidth: Horz.26 Deg Vert.34 Deg
Double Ridged Horn Antenna
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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.
Recommended Accessories
- Antenna Tripod: easy and fast-changing polarisation. 100% stable handling
- SMA Cable: High-quality special SMA cable
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