致災性梅雨來了！今（13）日鋒面接近，各地降雨機率高，白天雨勢再增加，尤其中部以北、東北部地區雨勢越晚越明顯。明（14）日至下週一（16日）滯留鋒徘徊，降雨範圍再擴全台，應注意劇烈天氣，包括雷擊、強風、瞬間強降雨，以及累積的致災性降雨。

中央氣象局表示，今天中部以北、東北部有短暫陣雨或雷雨，降雨較持續，且越晚越明顯，有局部大雨發生的機率；南部及花、東地區降雨空檔較多，仍須注意瞬間大雨、雷擊及強陣風。氣溫方面，清晨各地低溫約23、24度，白天高溫則略降，北台灣為25、26度左右，感受舒適；中南部及花、東為27到31度，沒下雨時仍偏悶熱。

氣象專家吳德榮於專欄指出，首波「梅雨季滯留鋒」今日逐漸南下，明日至下週一受滯留鋒徘徊影響，降雨範圍擴及全台，應慎防中、小尺度對流系統伴隨的劇烈天氣（雷擊、強風、瞬間強降雨），及累積的致災性降雨。

此外，各地氣溫將逐日下降、明顯轉涼，北台微冷，預估15日晚至16日晨、16日晚至17日晨，低溫恐下探16度，應注意衣著調適。下週二（17日）起滯留鋒南移至巴士海峽，屆時各地天氣明顯好轉，白天氣溫回升。

Horn antennas are very popular from 200 MHz frequency to higher frequencies up to 40GHz. The horn antenna has a distinctive design that is enlarged towards the end. Horn antennas typically feature a directional radiation pattern with a high antenna gain of 10-20 dBi, some antennas have a higher gain such as the standard horn antenna up to 25 dBi. Horn antennas feature a low VSWR and a wide impedance bandwidth.

The horn is suitable for both transmitting and receiving purposes, with applications:

- Antenna measurement
- Communication systems
- Satellite tracking systems
- Radar Detection System
- Surveillance System
- Electromagnetic Compatibility Testing (EMC test)
 

Recommended Accessories

- Antenna Tripod: easy and fast-changing position. 100% stable after installing.
- SMA Cable: High-quality special SMA cable
Learn More: Summary Table of Double-Ridged Horn Antenna (HA-Series)