蘋果官方認證！11大秘訣幫愛瘋省電

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

記者谷庭／台北報導

▲ 以下11招可以延長iPhone 續航力。（圖／資料照） 

很多民眾都抱怨手機用越久續航力直直掉，不過現在蘋果官方也提供11項省電秘招，可以有效延長手機電池使用壽命。

一、將iOS更新至最新版

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

蘋果指出，安裝最新版本可使手機達到最佳化電池續航。

二、將長時間不使用的iPhone維持在50%電量

即便很久都不會使用iPhone，也建議每半年要記得開機並充電，讓它保持在電力50%。

三、充電時不裝iPhone保護殼

若保護殼較厚的用戶，建議拆下保護殼充電來避免iPhone過熱。

四、避免極端環境溫度

iPhone電池在0至35度間可以正常運作，若環境溫度超過35度以上，會造成電池容量永久傷害。另外若在0度以下低溫環境使用時，也會加快電量消耗。

五、訊號不足建議開啟飛航模式

iPhone在尋找訊號時更易消耗電量，若暫時不使用手機，可開啟飛航模式來節電。

六、調整螢幕亮度、開啟自動亮度

調暗螢幕亮度是最直接有效的方式，用戶可到「設定」>「輔助使用」＞「顯示與文字大小」＞開啟「自動調整亮度」。

七、以Wi-Fi代替行動網路

在有Wi-Fi的環境下，可以保持隨時啟動Wi-Fi的狀態，能有效省下電量。

八、開啟低耗電模式

開啟低耗電模式會減少資源下載或郵件擷取等背景活動，可至「設定」>「電池」>「低耗電模式」。

九、查看app背景活動耗電情形

從「設定」>「電池」下的欄位可查看背景活動時間，另在「設定」>「一般」>「背景app重新整理」，可設定為在連接Wi-Fi的狀況下才允許背景app重整，或直接關閉某app的背景活動。

十、避免過多通知喚醒螢幕

用戶可在「設定」>「通知」中關閉不需使用的通知來省電。

十一、用電腦替iPhone充電須保持開機

使用電腦USB連接埠幫iPhone充電時須注意，若是電腦關機或是處在睡眠模式，可能會造成iPhone電量耗盡，應將電腦保持在開機狀態。