Memorex RX 1 Smart Manual de Instalação descarregar pdf (Página 23)

22 | Simrad MX500

level for dropping DGPS corrections is 600 seconds.

During this period, your positioning information is less

than optimal, and position accuracy may be off by as

much as 3 to 5 meters. Press the GPS function key and

refer to the DGPS section in this manual for guidance if

this light condition occurs.

Yellow Solid

DGPS position update with poor HDOP value. You

may see this from time to time during normal opera-

tion. It usually occurs when you are tracking 3, 4, or 5

satellites, and the satellites have poor geometry rela-

tive to your position. The condition will normally go back

to Green Solid when it picks up another satellite or the

geometry of the existing satellites improves. The fac-

tory default level for this indication is with an HDOP of 4

to 10. During this period, your positioning information is

less than optimal, and position accuracy may be off by as

much as 5 to 10 meters. You can press the GPS function

key and refer to the GPS section in this manual for guid-

ance if this light condition occurs.

Green Solid

DGPS position update with HDOP value less than 4.

This is the normal operating condition. Position accuracy

is normally better than 3 meters. Keep in mind that posi-

tion accuracy is always only as good as the corrections

received, their age, your distance from the reference

station, and the geometry of the satellites. This is the

normal operating condition and no icon will be displayed.

GPS Trafc Light Operation:

Red Flashing

Not tracking satellites (no position update). This

is normal for the first 2 minutes or so when turning the

unit on. The very first time you turn the unit on, or if

the memory is reset or lost, this condition is also nor-

mal. Allow the receiver to run for at least 30 minutes

under these circumstances. If it still does not change

to Red Solid, refer to the troubleshooting section in the

Installation section of this manual.

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Memorex RX 1 Smart Manual de Instalação Página 23