打龜號靈魂人物是他 強調改車無捷徑
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
俗話說:內行看門道,外行看熱鬧。
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
▲林大安(圖右)表示,改車無捷徑、要虛心請教,真正要推廣的是,玩車是一種興趣愛好。(圖/中央社)
今年農曆春節後,台灣與中國大陸的改車或賽車網路世界,因本名楊永杰的中國網紅「HG杰爺(傑尼龜)」一句「台灣無快車」掀起波瀾;更讓人稱「廖老大」的汽車零件商廖志賢,斥資買了一輛全新奧迪TT RS跑車大改造,取名「打龜號」欲扳回台灣面子。
在兩岸改車圈頗有名氣林大安、畢業於台北科技大學車輛工程系,他其實不認識廖志賢,兩人是由賽車手郭國信牽線認識;原因簡單,廖志賢坦言自己不懂奧迪TT RS這部車,而林大安可襄助一臂之力。
提及改裝車輛,在台灣常聯想到換避震器、排氣尾管或加裝空氣套件,但要改成「真正」賽車,需要專業知識;廖志賢曾說,車子要快不是只有馬力大,包括底盤、變速箱、輪胎胎壓品牌、渦輪壓力與引擎等賽車工程學,有太多東西要做選擇。
回顧近兩個月改車過程,林大安在自己發布在臉書影片提到,當你提出一些意見方案,人家願意採用,代表相信你;比起自己幾年前提了很多方案,結果對方說:「你在說什麼?我都聽不懂」。他強調,願意接受新知,以客觀態度作討論與嘗試,這就是改裝精神之所在。
為了取信兩岸愛車網友,廖志賢把在自家工廠內改造TT RS過程全做直播。網友可透過影片看到,為了盡量減輕車體重量,在不影響剛性安全前提下,車體許多結構被裁切出許多圓洞,甚至連懸吊系統等許多零件都重新製造,一切只為「減重增速」。
這是一場近乎重新打造新車的浩大工程。林大安曾在臉書影片謙虛說,這輛車是廖老大公司D2製造的,「一台車拆光光,依自己能力要一個禮拜,廖老大他們一天就拆完了,一天拆下發動機、兩天裝好發動機,3天做出渦輪套件、破紀錄」。
林大安說,一堆底盤件全都是上機床重新畫圖,不要講CNC(數控車床)很高端,機器設備都有、插電都會動,「但如何加工?怎麼編程?繪圖軟體大家都有,怎麼畫?邏輯在哪裡?」他強調:「真正關鍵還是人,這是效率跟團隊精神!」
事實上,林大安本職是在勝力企業擔任VP Racing機油銷售,但他在中國大陸的改車圈因以專業知識取勝、頗有名氣,自己也有另一個臉書帳號專門講改車,近期焦點是「老BMW回春中心」。
從影片裡可看到林大安說,這輛「E30 318,原本4缸M42雙凸輪軸引擎,要更換M52的6缸引擎」,原因是只要換晶片即可;在其他影片裡,林大安連不同時期的「保險桿」設計美學也能分析差異,還有「曲線瓶」汽車腰身設計。
正因長年浸潤改車領域,4月6日「打龜號」在台中港風車大道、從0起步至400公尺(04賽事)飆出8.72秒打破傑尼龜紀錄。林大安現場接受中央社採訪時頗有感觸地說:「網路世界的討論重點不在玩車,是誰想要活?誰想要蹭流量,誰想要出名,這兩個月所有問題都是這麼來的」。
林大安指出,在「打龜號」之前,沒有人知道他是誰,也沒有誰能代表整個改車圈,「小部分人很熱、很火、很紅,但不代表整個車圈,整個車圈成千上萬改裝店家,也不見得每個人都彼此認識」。
林大安強調,車子不能隨便說改就改,也不能嘴巴說愛車卻只會背數據、一台車幾匹馬力、「下個交流道120什麼鬼的」;他認為,改車圈真正要推廣的是一種「興趣愛好」觀念,如何瞭解這部車、玩這部車。
不同賽事規格,無法做比較。林大安以直線加速賽為例指出,大家只是在學習,觀看別人怎麼玩車;大馬力的04運動源自美國、台灣比不上,美國玩家用TT RS可以跑到7秒尾、8秒頭,且可以在鋪膠跑道比賽,「台灣怎麼比?」
回顧近兩個月「台灣無快車」爭論,林大安認為,此事對改車圈的真正幫忙或影響是給予正確觀念,真正要推廣的是一種興趣愛好,該如何瞭解車、玩車;例如,自己有無需要改車,不然車子就是交通工具,可以上下班就好。
引用自: https://www.setn.com/News.aspx?NewsID=1101668
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