iPhone 14 Pro, GPS is more accurate than before. The Macrumors website highlights this by reporting what is indicated in Apple’s specifications, explaining that GPS provides additional and more accurate information.
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As for the Apple Watch Ultra, this is able to receive signals from the GPS positioning system both using the legacy L1 frequencies and the more modern L5 frequencies, transmitted by the emitter found on the latest satellites.
The possibility of using the L5 frequency allows to increase the positioning accuracy, exploiting a signal less vulnerable to interference due to obstacles (e.g. buildings and trees) as can happen with L1 signals.
The combination of two signals allows the iPhone 14 to improve what in the jargon are called auto-correlation and cross-correlation algorithms, reducing the probability of errors in signal acquisition, in the presence of noise caused by obstructions or interference, and improve the estimation of ionospheric delay.
The geostationary satellites that transmit the L5 frequencies are 17 according to what the United States government reports; the latter still reports that the new frequency offers users around the world the most advanced GPS signal. The distribution of the new codes for the L5 frequency began in 2010 but even now the signal in question is labeled as “pre-operational”.
The standard version of the iPhone 14 offers standard GPS location and all support the four navigation systems: GPS, GLONASS, Galileo, QZSS and BeiDou.
