馬斯克大砍推特1功能！網讚爆：超沒意義

HA-0218G-NF

Applications:

•  2GHz to 18GHz
•  6061 Aluminum metal alloy
•  Stainless Steel N-female
•  Taiwan Design, Made in Taiwan

Features:

• High Power 300W (peak) 150W (Cont)
•  DC Short lightning protection
•  Low VSWR
•  Uniform Gain
•  Consolidated performance database

The horn antennas of the FT-RF horn double ridged antenna series are characterized by an enormous broad frequency range from 2GHz to 18GHz and very high input powers reach to 300W. The gain increases with increasing frequency up to max 17 dBi. The products are in stock and can be shipped
It is suitable for both transmitting and receiving purposes, especially suitable for microwave and EMC measurements.
This antenna has a more uniform gain and antenna factor because of the better behavior of its radiation pattern.

For EMC/ EMC testing: 

• Pre-compliance testing lowers the chances of certification failure.
  You can make adjustments throughout the design phase with pre-compliance testing.
  Fixing issues after compliance testing are far more costly and time-consuming than fixing them at the design stage.
  Pre-compliance testing might concentrate on the areas where you are concerned about potential issues.
  Instead of looking for faults, pre-compliance testing focuses on identifying solutions.

記者谷庭／台北報導

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

▲馬斯克取消推特一功能，被網友盛讚。 （圖／翻攝自馬斯克IG） 

馬斯克接管推特後，一連串裁員、針對藍勾勾要收費被罵翻天，不過稍早宣布取消一個功能，卻讓網友讚爆：「早就覺得沒意義！取消事好事」。

這項功能就是過往推特發文，都會自動顯示「Twitter for iPhone」或「Twitter for Android」的附註，但不少用戶覺得根本一點意義都沒有，甚至過去也有出包狀況，像是Google員工上個月才被抓包宣傳自家Pixel 7手機，卻用iPhone發文，馬斯克表示，顯示這樣的文字很浪費螢幕空間，甚至問了推特的員工，也沒有人知道為何要顯示這行字，因此宣布取消。

對此，大批網友紛紛贊同，表示：「早該取消」、「看了很煩」、「可能是當初為了要行銷手機」、「馬斯克終於做對一件事」。不過目前正式取消的時間點尚未出爐，但應該近期用戶就會看到這行備註消失。

雖然這一舉動被用戶稱讚，但近期藍勾勾爭議仍不斷，因為只要付出8美元就能獲得藍勾勾，也讓平台出現大量假帳號，推特也緊急喊卡這收費機制，馬斯克改革推特仍是一條漫漫長路。