GPS Guides: Navigation, Receivers, Mapping, and Tracking

Find a navigation setup that fits the trip, check location data before relying on it, and understand the receivers and services behind the result. Explore practical guides by task, followed by historical devices and satellite announcements.

Hiking, wearables and golf

A navy handheld receiver, phone and watch stand beside a paper map and compass on pale mountain terrain.

Choosing a Hiking GPS: Phone, Handheld, or Watch

Choose and test a hiking navigation setup around offline maps, terrain, controls, power and independent backups.

A rugged handheld receiver with a contour-map display rests beside a folded map and compass on stylized terrain.

Handheld GPS: Preparing Maps, Waypoints, and Field Navigation

Prepare maps, waypoints, coordinate formats, controls and field power before using a handheld receiver.

A navy sports watch displays a trail beside miniature terrain and conceptual time and distance elements.

GPS Watches: Accuracy, Recording Modes, and Navigation

Choose recording and satellite modes, interpret pace and distance, and test watch navigation.

A navy watch and handheld display stand beside a miniature green with amber points and a flag.

Golf GPS: Yardages, Course Maps, and Device Choices

Choose a golf GPS, interpret front/center/back and pin distances, and check course data and permitted event settings.

Driving and phone navigation

Three navigation displays overlook an ivory road interchange with a navy passenger car.

Choosing Driving Navigation: Apps, Built-in Systems, and GPS

Compare driving navigation by offline coverage, map updates, traffic connections, readability and actual trip needs.

A smartphone displays a location point and uncertainty circle beside miniature city blocks and conceptual satellite and Wi-Fi positioning elements.

GPS on Phones: Location Accuracy and Troubleshooting

Diagnose stale positions, missing maps and unreliable tracks by separating reception, permissions and app behavior.

Marine navigation and fishing

A handheld marine receiver, chart and compass sit above a pale coastal inlet with a small boat.

Marine GPS: Charts, Waypoints, and Backup Navigation

Prepare recreational marine navigation with suitable charts, reviewed route legs, explicit settings, tested power and backups.

An unbranded sonar display and separate transom transducer sit on a pale plinth before a water cutaway.

Garmin Fish Finders: Sonar, Waypoints, and Charting

Identify compatible fishfinder hardware, interpret sonar history, save intended waypoints and diagnose common setup problems.

A navy chartplotter, memory card and notebook sit in front of a smaller older display.

Garmin Chartplotters: Compatibility, Upgrades, and Data Migration

Inventory a Garmin marine system, verify accessory and chart compatibility, back up user data and test an upgrade.

Field mapping and precise positioning

A mapping receiver and notebook sit beside a woodland terrain model with amber observation points.

Reliable GPS for Field Mapping and Conservation

Collect repeatable conservation locations with coordinate references, observation metadata, quality flags and independent checks.

A GNSS antenna on a tripod over a control mark stands beside a rover pole, coordinate grid, terrain model, and field notebook.

GPS Surveying: Reference Systems, Field Records, and Quality Checks

Connect survey observations to coordinate references, antenna setup, independent checks and reproducible deliverables.

A fixed reference antenna and a rover receive satellite signals, with a separate conceptual correction-data connection between them.

Differential GPS: DGNSS, RTK, PPP, and Correction Services

Compare DGNSS, RTK, PPP and correction services through their reference data, connections and verification needs.

Construction site surveying and mapping with GNSS

Construction GPS

Connect GNSS, RTK, machine control, digital models and field verification across construction tasks.

Tracking assets and sending location alerts

A navy tracker is mounted on an ivory trailer beside amber report tiles and a distant cellular mast.

Battery-Powered Asset Tracking: Coverage, Intervals, and Trials

Specify asset-tracking requirements, separate recorded positions from uploads, and test coverage, delay and battery assumptions.

A miniature delivery van, cellular mast, and glass fleet map illustrate separate positioning, communication, and reporting functions.

GPS Vehicle Tracking: Reports, Geofences, and Data Quality

Interpret vehicle reports, geofences, position timestamps and delayed messages in a tracking platform.

Location Messaging

Design actionable location alerts around events, freshness, sensors, recipients, coverage and data handling.

Receivers, signals and location data

A navy external receiver puck sits beside a tablet map, linked by translucent arcs.

Bluetooth GPS Receivers: Compatibility, Setup, and Troubleshooting

Verify an external GNSS receiver from Bluetooth pairing through app input, saved records and loss-of-connection behavior.

Navigation satellites above a curved globe send conceptual signal paths toward a receiver point, with a ground-monitoring antenna nearby.

GPS Systems: How Satellite Positioning Works

Understand satellites, timing, receiver calculations and the factors that turn a position fix into useful navigation.

A navy navigation satellite model floats above a globe arc, glass waves and a receiver.

GPS Signal Modernization: L2C, L5, L1C, and Receiver Benefits

Interpret GPS signal specifications, distinguish frequencies from constellations, and check deployment and service claims with dated sources.

A conceptual GNSS circuit board contains a shielded receiver module, ceramic patch antenna, and host processor beside a waveform panel.

GPS Chipsets and GNSS Modules: Selection and Integration

Evaluate GNSS chipsets and modules through antennas, power, interfaces, firmware and complete-system tests.

A glass map shows a teal track, amber waypoints, and a dotted proposed route beside a laptop, receiver, and organized file cards.

GPS Software: Maps, Tracks, and Location Data

Inspect, convert and share maps, tracks and location files while preserving coordinates, times and data meaning.

A cutaway office contains three Wi-Fi access points, conceptual ranging paths, and a phone displaying an indoor location estimate.

Wi-Fi Positioning: Location Databases, Fingerprinting, and RTT

Distinguish Wi-Fi location databases, fingerprinting and RTT, and evaluate indoor-positioning results.

GPS Technologies: 10 Practical Uses (2026)

Explore ten uses of satellite positioning and timing, with the supporting systems and limitations of each.

Historical devices and satellite announcements

These pages describe past products and announcements. Specifications, availability and planned dates belong to their historical context.