Hiking GPS Devices: Features, Accuracy, and Performance Evaluation

The main subject is GPS satellites and their role in determining location accuracy, signal interference, and the development of regional navigation satellite systems.

### Hiking with the Avengers: Navigating with GPS Satellites
GPS satellites determine location on Earth by measuring the time it takes for a signal to reach the receiver. At least four satellites are needed to accurately determine a location in three-dimensional space. The hike features a test of different GPS devices and their signal reception in densely forested areas.

### The Significance of GNSS in Satellite Navigation
Jirisan's charm is preferred over the grandeur of Seoraksan, and the Hae-bap term has become generic, similar to GPS for satellite navigation. The GNSS, not GPS, is the correct term for global satellite systems, with the US, Russia, China, and the EU operating their own. The Coros Apex 2 Pro, Suunto Vertical, and Garmin Epix Pro are equipped to receive signals from all satellite types, while older models have limited capabilities.

### The Challenges of Satellite Signal Distortion
Satellite signal distortion can cause errors in distance measurement due to various obstacles along the signal's path. The ionosphere, satellite orbit deviation, atmospheric interference, and urban obstacles like high-rise buildings and tunnels all contribute to these inaccuracies. However, the use of a satellite-based augmentation system (SBAS) and dual-band technology helps reduce these errors to improve the accuracy of distance measurements, especially in urban areas with high levels of radio interference.

### The Impact of Signal Interference on GPS Measurements
Signal interference causes shaking and inaccuracies in GPS devices, with urban areas being particularly affected. Densely received signals result in shorter distances, especially in curved areas, while sparse signals lead to excessively long measurements. The difference in signal reception also affects the accuracy of GPS standards, making it challenging to convey complex content simply.

### Managing Smartphone Battery for Hiking
Smartphones offer more than just timekeeping and distance measurement for hiking, but high GPS accuracy can quickly drain the battery. Ensuring a secure battery is crucial for the phone's direct connection to survival, especially in winter. Hikers need to manage the smartphone's battery performance, considering its degradation over time and the impact of high humidity, to avoid unexpected shutdowns during hikes.

### The Impact of Precision on Smartphone and Watch Distance Measurements
Smartphone distance measurements are affected by precision, with a significant difference in values when the precision is reduced. Hiking speed can also impact the recorded distance, with GPS capturing minor movements even during short stops. Altitude measurement varies across GPS, barometric altimeters, and smartphone apps, showing discrepancies in ascent altitudes. Latest watch models offer sufficient features for hiking, with the choice depending on individual hiking styles and needs, such as weight and battery performance. Additionally, GPS and satellite maps play a crucial role in finding locations and requesting rescue in emergency situations during mountain activities.

### Hiking with GPS: Testing Satellite Navigation Systems in Jirisan National Park
* 🛰 The GPS (Global Positioning System) used for navigation relies on signals from **multiple satellites** to determine location, with at least **4 satellites needed for accurate positioning**.
* 🌍 The GPS system is part of the GNSS (Global Navigation Satellite System), with countries like the US (**GPS**), Russia (**GLONASS**), China (**BeiDou**), and the EU (**Galileo**) operating their own satellite networks.
* 🇰🇷 South Korea is developing its own Regional Navigation Satellite System (RNSS), known as **kbas**, to **enhance positioning accuracy**.
* ⌚ Devices like the Coros Apex 2 Pro, Suunto 9 Peak, and Garmin Epix Pro are capable of **receiving signals from multiple satellite systems**, providing **more accurate GPS data**.
* 🔋 Balancing GPS accuracy and battery life is crucial, especially when using smartphones for **navigation in remote areas**.
* 🏔 Altitude measurement can vary between devices, with barometric altimeters in watches generally providing **more stable readings** than GPS-based altitude measurements in smartphones.
* 📏 Dense signal reception can significantly improve distance accuracy, especially in urban areas with signal interference.
* 🌳 Signal obstacles like **high-rise buildings, dense forests, and tunnels** can affect GPS accuracy, with South Korea's **kbas system** helping to **reduce errors** caused by such obstacles.

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[등산과GPS] 화대종주 거리가 다른 이유가 있다 ? 순토,가민,코로스,트랭글

[등산과GPS] 화대종주 거리가 다른 이유가 있다 ? 순토,가민,코로스,트랭글