4
GPSRECEPTION
1. Activatetheproductinanareawithoutlargebuildingsto
improveGPSreception.
2. Thetemperaturerangeforoptimumoperationofthe
GPSreceiverinyourcaris‐10~50°C.
3. Whenusingtheproductforthefirsttimeorafteralong
period(morethanthreedays),itmaytakealittlelongerto
recognizeyourcurrentlocation.
ItmaytakebetweenfiveandthirtyminutestogetGPSreception.
GPSreceptionmaybeimpairedunderthefollowingcircumstances
1)
IfthereisanobjectattheendoftheGPSantenna
2)
Ifyourvehiclehasmetallicelementsonthewindshields
3)
If
equipmentgeneratingelectromagneticwavesthatinterferewiththeGPS
signalisinstalledinthevehiclee.g.:OtherGPSdevicessuchasacertai
n
type
ofwirelessactivatedalarms,MP3andCDplayersandcamera
alarms
usingGPS.
4
)
If
youareusingareceiverconnectedbycable,electricinterferencecanbe
avoidedbysimplychangingthelocationofthereceiver(antenna).
5)
Onheavilyovercastorcloudydays,ifthevehicleisinacoveredlocatio
n
such
asunderabridgeorraisedroadway,inatunnel,anunder
ground
road
wayorparkingarea,insideabuildingorsurroundedbyhig
h‐rise
building
s.
6)
IfGPSsignalreceptionispoor,itmaytakelongertolocateyourc
urrent
positi
onwhenthevehicleismovingthanwhenitisstationary.
ThecommercialpurposeGPShastheaveragerageerrorofmore
than15metersandtherangeerrorcouldbemorethan100meter
s
due
toenvironmentalconditionslikebuildings,roadsidetreesetc.