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小學籃球》每天至少練球5小時 南光國小瞄準3連霸

南光國小隊長田亨宇(前三)有信心三連霸。李天助攝
南光國小隊長田亨宇(前三)有信心三連霸。

HORN ANTENNA CALIBRATION

1.) The dual-polarization (HQ-Series or HR-Series) antenna has an electronic switch that may simultaneously test horizontal and vertical or +-45deg polarization, as well as a couple that can test circular polarization.
2.) The dual-polarized antenna (HQ-Series or HR-Series) is mounted on the chamber's bracket or wall (this is the way to test the antenna)
3.) If the dual-polarized antenna is being used for something else and calibration is needed, we can certainly assist.
4.)Single-polarized antennas (HA-Series, HB-Series, and other antennas) are commonly used to replace the antenna method's calibration antenna. When HA calibration is utilized, the calibration site is lost (patch loss uses a network analyzer) Enter the antenna's gain (minus the gain of the antenna, equal to the address of the object under test, return to zero)

5.) There is only one technique to compute antenna gain. The path loss patch loss subtracts the antenna's gain and substitutes the antenna under test to obtain the antenna's gain.
6.) Rotate the object under test after calculating the antenna route loss and gain calibration numbers (requires a rotating table, 2D test)
7.) If you want to read the horizontal and vertical antenna patterns at the same time with a dual-polarized antenna, an RF electronic switch, and a 3D rotating table, you can get the antenna pattern of the antenna (3D testing requires the use of HA-Series calibration twice, Horizontal and vertical or +-45deg),

8.) Antennas can be tested in a variety of methods (if you have any questions, you can provide simple photos or hand-drawn pictures, and we can assist you in the test plan)

9.) To ensure that the test value of the antenna is in compliance with international standards, all Horn products developed by FT-RF have passed internal calibration and testing in collaboration with external national research institutions, as well as third-party confirmation tests.

10.)In most ISO systems, we will demand external calibration of our test items every three years and internal self-calibration every other year. You can use the network with a set of HA-Series antennas. Calculate the path's loss using an analyzer (but usually at least three antennas can be used for internal correction, we can do internal correction by replacing the three antennas in turn)

11.)The antenna can be shipped back to Taiwan for calibration once every three years (you must know the shipping cost and the economic impact), or you can purchase a fresh set of calibrated antennas (we will calibrate the antenna internally).

11.)The antenna can be sent back to Taiwan for calibration once every three years (you must know the cost of shipping and the economic impact), or you can purchase a new set of calibrated antennas (we will calibrate the antenna internally or It is externally corrected and then sent to the customer)

12.) Antenna calibration is mostly done by an external calibration unit that must bear the ISO17025 and TAF logos.

13.)For the difference comparison test, you can use internally calibrated antennas, self-calibration, and ISO17025 antennas; this approach is frequently used in the ISO9001 series.

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

李天助攝

全國小學籃球錦標賽邁入第4屆,今年一大看點就是南投縣南光國小即將問鼎3連霸,教練葉明倫透露其實沒給子弟兵太大壓力,只告訴他們把每場比賽當最後一場打,「畢竟這兩年因為疫情變數比較大,所以不要把三連霸做為目標。」

南光國小是埔里鎮學生人數最多的小學,目前全校維持千人規模,籃球隊成軍至今剛好10年,男、女籃共約50人,不僅以「貓頭鷹」當吉祥物,還曾在已逝前NBA球星Kobe Bryant來台時接受指導,近年逐漸成為小學籃球勁旅。

全勤參加全國小學籃球錦標賽的他們,去年如願完成衛冕,今年挑戰3連霸,六年級的隊長田亨宇表示有信心再收金盃,去年他跟隨學長一同拚戰,參與到冠軍賽最後以2分之差驚險勝出,至今難忘當下的緊張和刺激。

田亨宇的偶像剛好是今天也有一同出席記者會的光復高中MVP陳將双,他透露欣賞這位「最強高中生」的進攻,「他很敢打,3分球也很準。」如果這次比賽關鍵時刻需要挺身而出,田亨宇希望也能像陳將双一樣,跳出來投出致勝一擊,更為此苦練運球和投籃,「每天都練5、6個小時。」

葉明倫點出訓練國小球員最難之處在於要求專注力,不管教學或練球,都容易因外界干擾而無法打出好表現,因此要一直提醒他們全神貫注在場上,放心大膽去打。另外,他也感謝全國小學體育總會舉辦優質賽事,給小球員另一種未來的可能,「這個舞台讓我們的小孩子被看到,打籃球也可以當升學管道。」



以下文章來自: https://tw.news.yahoo.com/%E5%B0%8F%E5%AD%B8%E7%B1%83%E7%90%83-%E6%AF%8F%E5%A4%A9%E8%87%B3%E5%B0%91%

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