Humminbird Marine GPS System Di Combo User Manual

0

Out of 0 Ratings

Owner's of the Humminbird Marine GPS System Di Combo gave it a score of 0 out of 5. Here's how the scores stacked up:

  • Reliability

    0 out of 5

  • Durability

    0 out of 5

  • Maintenance

    0 out of 5

  • Performance

    0 out of 5

  • Ease of Use

    0 out of 5
of 179
 
164
Estimated Position Error (EPE) A calculation that indicates the potential position
inaccuracy the user may experience due to a variety of GPS factors which include satellite
position in the sky, signal strength, and others factors.
Fix Type IndicateswhethertheGPSreceiver is providing2Dfixor 3D fix.A 2D fix requires
only three satellitesandprovidesonly latitude and longitude.A 3D fix requiresfour or more
satellites, and provides latitude, longitude, and altitude.
GPS (Global Positioning System) GPS provides accurate position (latitude, longitude,
altitude) information virtually anywhere on the earth through satellite technology and
personal receivers on the ground. See
How GPS Works.
Heading The direction the boat is pointing and is measured in degrees (i.e. 321°, where
000° isNorth, 090°East, 180° isSouth, 270°is West). Due to wind and waves, the boatis
often traveling in a slightly different direction than it is heading, and therefore Heading is
often confused with Course Over Ground. See
Course Over Ground.
Map Datum Refers toaparticularsurveyoftheearth’s surfacethatwasreferencedwhen
creatingachart(i.e.WGS84).ItisimportanttoselectthecorrectMapDatumsettinginyour
fishfinder when comparing GPS position to a paper chart to avoid slight position
inaccuracies. Almost all electronic charts use the WGS84 Map Datum and therefore, they
do not require setting changes.
MMC (Multi Media Card) An MMC is a postage stamp-sized memory device used to
storeelectronic data suchamaps, waypoints, routes, andotherinformation.MMCisa very
rugged format suitable for the marine environment, but it is not waterproof. MMC is the
same format that many digital cameras use. See
SD.
North, Magnetic The principle reference point of the compass (i.e. North is 000°).
Magnetic North relies on the earth’s magnetic field to align a metal pointer generally
towards True North. However, due to local variations in the earth’s magnetic field around
the globe, thedifference betweenTrueNorth andMagneticNorthcanbe greater than10°.
See
True North.
North, True The principle reference point of the compass (i.e. North is 000°). True North
uses the axis of the rotation of the earth as the reference for North and is constant for all
points on the earth. Most GPS units default to True North as the setting. The GPS heading
may vary from theboat compass heading because the compass usesMagneticNorth. See
Magnetic North.
Glossary -GPS & Navigation Terms

   Find Your Products By Category