追星族請注意，阿里山冬季大三角「聚睹」了！
此時正是阿里山最適合觀星的季節
【旅遊經 編輯部報導】
追「星」族請注意，林務局嘉義林區管理處與嘉義市天文協會合作，將於連續假日2月26-27日、2月27-28日期間，在阿里山國家森林遊樂區推出2梯次「冬季大三角天文生態營」。活動將於本週五(2/11)上午9點開始報名，歡迎對自然生態、天文活動有興趣的民眾，一起到阿里山，看星空，用星座連連看！
824 MHZ TO 896 MHZ FREQUENCY (LORA EU868)
LoRa antenna which has long-range coverage while maximizing radio spectrum use is provided by the FT-RF fiberglass Omnidirectional outdoor antenna, which operates in the 824 to 896MHz frequency band with various strength levels.
The UV-resistant fiberglass shell enables all-weather operation.
For lightning protection, it is made of copper elements and coupled to the DC ground potential.
Any type and length of cable can be terminated with a female N-Type connector.
Fiberglass IoT Antennas for ISM 868MHz are used to make LoRa 868mhz antennas. It's an omnidirectional outdoor antenna with different strength levels ranging from 2 to 12 dBi. They are long-lasting and simple to install (on a wall or pole).
The OA-868M series, often known as EU868 (for the European market), is a license-free ISM band with a core frequency of 868MHz. The omnidirectional antenna employs an advanced collinear dipole design, which means it radiates uniformly in the azimuth with a high gain across long distances, reducing the number of cells or nodes required in a network.
EU868 can work in a variety of environments for up to 12 years thanks to its UV-resistant construction.
The connector can be customized based on a minimum order quantity. There are a variety of frequencies and gains that can choose from.
We offer a variety of high-performance antennas for Global LoRaWAN, including LoRa antenna EU868, US915, or AS923 MHz LoRa Antenna ( for Singapore, Malaysia, Taiwan market...) ... Our product line includes both durable outdoor antennas and indoor high-performance dipole antennas that are suitable for a variety of LoRa applications, including Helium hotspot support.
This range of products are including:
- 868MHz series (LoRa EU868)
- 828MHz series (824MHz-896MHz frequency range)
- 821MHz series (multi-frequency range 824-960MHz and 1710-2170MHz)
除了日出與星空，阿里山的巨木更是不能錯過的經典場景
嘉義林管處與嘉義市天文協會共同舉辦的冬季大三角天文營，帶領學員從夕陽看到日出，體驗阿里山各種美景
阿里山國家森林遊樂區豐富的自然生態，日落時出現的絢麗晚霞，到了晚上還有數不盡的星海，每年十一月到隔年的四月，有因東北季風影響還會看到雲海，緊接著直擊從東北亞最高峰玉山主峰蹦出的太陽，讓人目不轉睛。為了讓參加者能夠飽覽阿里山的森林及星空景觀，減少體力上的負擔。在行程上林管處貼心安排多趟園區內電動遊園車接駁，適合全家大小一同感受不同的視覺饗宴。
林管處表示，冬季是四季星空中星星最多最明顯的季節，位在阿里山小笠原海拔超過2,400公尺，光害少、無遮蔽，最適合來觀賞在璀璨星海，由不同顏色的三個恆星─大犬座的「天狼星」、小犬座的「南河三」，再加上獵戶座的「參宿四」所形成的冬季大三角等。活動中嘉義市天文協會特別準備天文望遠鏡，讓大家除了肉眼觀星，還可藉由工作人員協助操作天文望遠鏡觀星，讓大家能更細微地一窺星星的神祕面貌。
相關活動於2月11日(五)上午9點開放報名，國小3年級以上或成人、銀髮族參加。活動費用每人計新台幣2,300元，活動簡章及活動日期可至報名網址(https://goo.gl/8iVNmb)查詢。由於疫情期間，活動全程配戴口罩及保持安全距離，並安排已經完成疫苗接種或3天內陰性快篩證明人員擔任工作人員。活動期間將乘坐園區內電動遊園車，往返於主要活動地點之間。
提醒欲參加民眾，報名前詳閱活動簡章。活動諮詢可至報名網站留言板留言。
圖片：林務局嘉義林區管理處提供