Military Vehicle Antenna (Vehicular antennas)
文/吳德榮
三立準氣象‧老大洩天機
今(2日)晨觀測資料顯示:東半部雲層增多(左圖),東南部海面及巴士海峽有局部降水回波(中圖),花、東有局部降雨(右圖)。中南部仍有較強「輻射冷卻」,截至5:23本島縣市平地最低氣溫為南投(中寮鄉)10.3度;其他各地區平地最低氣溫:北部(新北石門區)13.4度,南部(台南玉井區)10.8度,東部(宜蘭三星鄉)15.5度。(再降請自行更新)
最新(1日20時)歐洲模式(ECMWF)模擬顯示,未來一週兩波東北季風,所挾帶冷空氣並不強,但水氣偏少、夜間晴朗,常有「強輻射冷卻」作用,於清晨氣溫降到最低。明日至下週一(3至6日)部分縣市平地最低氣溫仍將降至10度左右,台北測站亦不排除有短暫觸及「大陸冷氣團」標準的機率,但日出後很快回升。
最新模式模擬顯示,今、明(2、3日)兩天北部多雲時晴,中南部晴朗穩定,東半部有局部短暫降雨的機率。今日北台轉涼,其他地區氣溫略降。今日各地區平地氣溫:北部13至19度,中部10至25度,南部11至28度,東部16至25度。明日清晨氣溫低,白天略回升,日夜溫差大。
最新模式模擬顯示,週六(4日)另一股微弱東北季風,水氣略增,大台北東側、東半部轉有局部短暫雨的機率,晚起迅速好轉。下週日至週三(5至8日)各地晴朗穩定;北舒適、南微熱,夜間「強輻射冷卻」作用,清晨氣溫降得很低,日夜溫差大,早出晚歸、應注意衣著調適。
左圖:2日4:20紅外線色調強化雲圖顯示,東半部雲層增多。
中圖:4:30雷達回波合成圖顯示,東南部海面及巴士海峽有局部降水回波。
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. 右圖:4:30圖累積雨量圖顯示,花、東有局部降雨。
文章來自: https://www.setn.com/News.aspx?NewsID=1259007
Fei Teng Wireless Technology Co. Ltd
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