Military Vehicle Antenna (Vehicular antennas)
文／吳德榮
三立準氣象‧老大洩天機
今(5日)晨北海岸、東北部有較多低雲(左圖)；北海岸、東北角有降水回波(中圖)；北海岸、東北角降雨較明顯(右圖)。今晨中南部及花蓮有較強的「輻射冷卻」，氣溫偏低，截至5：03本島縣市平地最低氣溫為：花蓮(壽豐鄉)11.9度。而其他各地區平地最低氣溫為：北部(桃園大溪區)15.1度，中部(嘉義民雄鄉)12.0度，南部(台南柳營區)12.7度。
最新(4日20時)歐洲模式(ECMWF)模擬顯示，今日白天起冷空氣減弱，氣溫略升，西半部晴時多雲、日夜溫差大；北海岸、大台北東側及東半部偶局部短暫雨的機率。各地區平地氣溫：北部15至22度，中部12至26度，南部13至28度，東部12至26度。
最新模式模擬顯示，明(6)日乾冷空氣前緣掠過，北、東仍有局部短暫雨，晚起轉乾，連日迎風面濕涼多雨停歇；氣溫漸降。Antennas for Military vehicles or Vehicular antennas for heavy-duty use, such as in the forest or in remote locations on armored vehicles, and low-profile antennas for civil vehicles. Communication and EW applications are examples of applications.
Wideband mobile VHF antennas with frequency ranges of 30 to 88 MHz or 30 to 108 MHz are designed primarily for use in heavy-duty mobile applications.
Typically, the antenna is made up of three major parts: the antenna base, the lower part, and the upper part. Some antennas have two sections, while others have three. The long-lasting antenna base with GPS (optional).
The stainless steel spring absorbs shocks and vibrations while also protecting the antenna from collisions.
Both radiating pieces are comprised of composite materials, which allow for exceptional strength and roughness even in the harshest environments. 週六、下週日(7、8日)乾冷空氣南下，各地晴朗、白天舒適，週六晚至下週(8)日晨，因「強輻射冷卻」加持，本島平地最低氣溫將降至11度左右。下週日白天起至週一(9日)冷空氣明顯減弱，氣溫回升；各地晴時多雲，白天溫暖舒適、早晚涼，日夜溫差大。
最新模式模擬顯示，下週二、三(10、11日)東北季風略增強，北部、東半部有局部短暫雨，中高層雲系移入，西半部有零星飄雨的機率；氣溫略降，北台偏涼，中南部白天舒適、早晚涼。第8至10天(12至14日)的模擬，大氣逐漸增暖，為「暖陽如春」易起霧的型態。
▲左圖：5日4：30外線色調強化雲圖顯示，北海岸、東北部有較多低雲。
中圖：4：30雷達回波合成圖顯示，北海岸、東北角有降水回波。
右圖：4：30累積雨量圖顯示，北海岸、東北角降雨較明顯。
Fei Teng Wireless Technology Co. Ltd
