In September, Apple launched the new iPhone 14 series, which is expected by digital enthusiasts around the world. However, the evaluation of iPhone 14, iPhone 14 Plus, iPhone 14 Pro and iPhone 14 Pro is seriously polarized. The standard version and PLUS version do not have such practical functions as Smart Island, High Brush, and New Focus. On September 26, foreign media sent a document saying that the iPhone 14 series is not equipped with dual band GPS as a standard.
9月，苹果推出了全球数字爱好者期待的新机器——iPhone14系列，但iPhone14.iPhone14Plus和iPhone14Pro.iPhone14Pro评价严重两极分化，标准版和Pluus没有灵动岛.高刷.新主摄等实用功能。9月26日，外媒发文称，iPhone14系列不是整个系列的标准。GPS。
Let's first understand what dual frequency GPS is. Dual frequency GPS is one of the carrier frequencies of GPS receivers. Single frequency GPS can only be accurate to 5 meters, and dual frequency GPS can be accurate to 3-5 meters. Dual frequency GPS can receive L1 and L2 carrier signals at the same time. Previous iPhones could only track GPS signals from the traditional L1 band, which was slow and prone to signal distortion caused by atmosphere and other obstacles.
先来看看双频率GPS是啥，双频GPS是GPS单频是接收机的载频之一GPS只能精确到5米，双频GPS可以精确到3-5米，双频全球定位系统可以同时接收L1和L2载波信号iPhone只能跟踪传统L1频段的GPS信号频率较慢的同时，也容易出现大气等障碍物引起的信号失真。
The iPhone 14 Pro/Pro Max is Apple's first mobile phone to support dual band GPS, while the standard and Plus versions are still limited to the L1 band. In addition to GPS, iPhone 14 supports global navigation satellite systems, including GLONASS, Galileo, QZSS and Beidou satellite systems.
iPhone14Pro/ProMax这是苹果支持双频的频GPS手机，标准版和Plus版仍受限于L1频段。除了GPS外，iPhone14全系支持全球导航卫星系统，包括格洛纳斯.伽利略.QZSS和北斗卫星系统。