GPS Lock Count and Position Accuracy Explained
A GPS receiver's satellite lock count directly controls how precisely it can calculate a position fix — more locked s...
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How a Compass Baseplate Transfers a Bearing
A compass baseplate transfers a measured bearing from map to terrain through a sequence of aligned housing rotations,...
Read itHow a PLB's 406 MHz Signal Gets Detected
A personal locator beacon transmits a coded 406 MHz distress signal that satellites relay to ground stations, produci...
Read itWhat an Altimeter Watch Actually Measures
An altimeter watch measures barometric air pressure and converts it to an elevation estimate — not a direct reading o...
Read itHow a Two-Way Radio's Range Actually Gets Determined
A two-way radio's stated range is shaped by power output, antenna design, frequency band, and terrain — not a single ...
Read itHow GPS WAAS Correction Actually Works
WAAS correction improves GPS accuracy by broadcasting error data from ground stations through geostationary satellite...
Read itHow a Topo Map's Contour Interval Works
A topographic map's contour interval is the fixed vertical distance between each contour line — here is how that meas...
Read itWhat a Compass's Declination Adjustment Corrects
A compass's declination adjustment corrects the angular gap between magnetic north and true north so a bearing aligns...
Read itHow Many Pounds of Buoyancy a Life Jacket Needs
Buoyancy ratings on life jackets are calculated from body weight and water displacement — here is what those numbers ...
Read itHow Much Buoyancy an Infant Life Vest Holds
Infant life vests are rated at a minimum of 11 pounds of buoyancy by U.S. Coast Guard standards — here is what that n...
Read itHow a Signal Mirror Actually Directs Light
A signal mirror uses a retroreflective sighting hole and flat reflective surface to aim a focused sunlight flash prec...
Read itWhat a Life Jacket's Buoyancy Rating Means
A life jacket's buoyancy rating measures pounds of upward force on a submerged wearer — not comfort, fit, or guarante...
Read itHow a Compass Declination Adjustment Works
A compass declination adjustment corrects the angle between magnetic north and true north so a map bearing matches th...
Read itWhat a Personal Locator Beacon Actually Signals
A personal locator beacon transmits a distress signal via satellite to a monitored rescue network, separate from ordinary GPS or radio devices.
Read articleHow a Handheld GPS Actually Determines Location
A handheld GPS calculates position by measuring the time signals take to arrive from multiple satellites and triangulating the result.
Read articleAll Navigation Articles
- GPS Lock Count and Position Accuracy Explained
- How a Compass Baseplate Transfers a Bearing
- How a PLB's 406 MHz Signal Gets Detected
- What an Altimeter Watch Actually Measures
- How a Two-Way Radio's Range Actually Gets Determined
- How GPS WAAS Correction Actually Works
- How a Topo Map's Contour Interval Works
- What a Compass's Declination Adjustment Corrects
- How Many Pounds of Buoyancy a Life Jacket Needs
- How Much Buoyancy an Infant Life Vest Holds
- How a Signal Mirror Actually Directs Light
- What a Life Jacket's Buoyancy Rating Means
- How a Compass Declination Adjustment Works
- What a Personal Locator Beacon Actually Signals
- How a Handheld GPS Actually Determines Location