📋 Table of Contents

🚀 Getting Started

Quick Start

1. Open the app in a modern web browser
2. Allow location access when prompted
3. Click "Start Tracking" to begin GPS monitoring
4. View real-time data on the dashboard and map
5. Export your data when finished testing

System Requirements

• Device: Any smartphone, tablet, or computer with GPS/location services
• Browser: Chrome 80+, Firefox 75+, Safari 13+, Edge 80+
• Connection: HTTPS required for location access (automatically provided)
• Permissions: Location access must be granted

First Time Setup

🧭 GPS Testing Guide

Understanding GPS Accuracy

Test Types

📍 Static Accuracy Test

Purpose: Measure GPS accuracy while stationary

• Duration: 2-5 minutes
• Best for: Testing device GPS precision
• Setup: Stay in one location, preferably outdoors
• What to expect: Consistent positioning within accuracy radius

🚶 Walking Accuracy Test

Purpose: Test accuracy during slow movement

• Duration: 3-10 minutes
• Best for: Pedestrian navigation testing
• Setup: Walk at normal pace in open area
• What to expect: Smooth track following your path

🚗 Vehicle Test

Purpose: High-speed accuracy testing

• Duration: 5-15 minutes
• Best for: Automotive GPS evaluation
• Setup: Drive at various speeds, avoid tunnels
• What to expect: Continuous tracking with speed data

❄️ Cold Start Test

Purpose: Measure time to first GPS fix

• Duration: 30 seconds - 5 minutes
• Best for: Testing GPS initialization speed
• Setup: Clear GPS cache or restart device
• What to expect: Gradual improvement in accuracy

🔄 Signal Recovery Test

Purpose: Test GPS reacquisition after signal loss

• Duration: 2-10 minutes
• Best for: Testing signal recovery capabilities
• Setup: Go indoors/under cover, then return outdoors
• What to expect: Quick signal reacquisition

🔧 Troubleshooting

Common Issues

🚫 "Location access denied" or "Geolocation not supported"

• Check browser permissions: Click the location icon in address bar
• Try incognito/private mode: Sometimes helps reset permissions
• Update your browser: Ensure you're using a supported version
• Enable location services: Check device-level location settings

📶 Poor GPS accuracy or no signal

• Move outdoors: GPS works best with clear sky view
• Wait for signal: Allow 30-60 seconds for GPS to stabilize
• Check weather: Heavy clouds can affect GPS accuracy
• Avoid interference: Stay away from tall buildings and electronic devices

🔄 App not loading or freezing

• Refresh the page: Simple reload often fixes temporary issues
• Clear browser cache: Remove stored data and reload
• Check internet connection: Ensure stable connectivity
• Try different browser: Test with Chrome, Firefox, or Safari

🗺️ Map not displaying

• Check internet connection: Map tiles require network access
• Disable ad blockers: Some blockers interfere with map loading
• Try mobile data: Switch from WiFi if having network issues
• Refresh the page: Reload to retry map initialization

Device-Specific Tips

📱 iOS Devices

• Ensure Location Services are enabled in Settings
• Check Safari location permissions specifically
• Consider using Chrome or Firefox as alternative browsers
• Restart location services if having persistent issues

🤖 Android Devices

• Enable high-accuracy GPS mode in location settings
• Grant location permission to your browser app
• Disable battery optimization for your browser
• Try Chrome browser for best compatibility

💻 Desktop/Laptop

• Use Chrome or Firefox for best GPS support
• Enable location services in browser settings
• Note: Desktop GPS accuracy may be limited
• Consider using mobile device for better results

⚙️ Technical Reference

GPS Metrics Explained

📍 Position Data

• Latitude/Longitude: Your exact coordinates in decimal degrees
• Altitude: Height above sea level (when available)
• Accuracy: Radius of uncertainty in meters
• Timestamp: When the position was recorded

🚀 Performance Metrics

• Speed: Current velocity in km/h (calculated from position changes)
• Heading: Direction of travel in degrees (0° = North)
• Distance: Total distance traveled using Haversine formula
• Points: Number of GPS positions collected

Data Export Format

GPS data is exported as JSON with the following structure:

{
  "session": {
    "startTime": "2024-01-01T12:00:00.000Z",
    "endTime": "2024-01-01T12:30:00.000Z",
    "totalDistance": 1234.5,
    "avgAccuracy": 8.2
  },
  "positions": [
    {
      "latitude": 40.7128,
      "longitude": -74.0060,
      "accuracy": 5,
      "altitude": 10,
      "speed": 0,
      "heading": null,
      "timestamp": "2024-01-01T12:00:00.000Z"
    }
  ]
}

Accuracy Factors

• Satellite visibility: More satellites = better accuracy
• Atmospheric conditions: Weather can affect signal quality
• Device hardware: GPS chip quality varies between devices
• Environmental interference: Buildings, trees, and electronics
• Movement speed: Stationary positions are typically most accurate

🌐 Browser Compatibility

Supported Browsers

Feature Support

Feature	Chrome	Firefox	Safari	Edge
High Accuracy GPS	✅	✅	✅	✅
Continuous Tracking	✅	✅	✅	✅
Background Tracking	⚠️	⚠️	❌	⚠️
Offline Functionality	✅	✅	✅	✅

✅ Full support, ⚠️ Limited support, ❌ Not supported

⚡ Performance Tips

Optimize GPS Accuracy

• Use outdoors: Open sky provides best satellite visibility
• Stay still initially: Allow GPS to get initial fix before moving
• Avoid metal objects: Cars, buildings can interfere with signals
• Check time/date: Incorrect system time can affect GPS

Battery Optimization

• Close other apps: Reduce background GPS usage
• Lower screen brightness: Save battery during long tests
• Use airplane mode + GPS: For testing without cellular interference
• Monitor battery level: Low battery can reduce GPS performance

Data Management

• Export regularly: Prevent data loss from browser clearing
• Clear old sessions: Remove unnecessary data for better performance
• Monitor storage: Large datasets may slow the app

❓ Frequently Asked Questions