Memorex RX 1 Smart Instalační manuál stáhnout pdf (Strana 20)

18 | Keypad & Display Description

Yellow/Green Solid

GPS position update; DGPS corrections are not being received. You may see this

from time to time during normal operation. It usually occurs when the beacon signal is

not available (either it is being blocked by terrain or a local object or you are out of range

of the transmitter) and/or you are tracking 3, 4, or 5 satellites, and the satellites have

poor geometry relative to your position. The condition will normally go back to green

solid, when it picks up another beacon station. The factory default level for dropping

DGPS corrections is 600 seconds. During this period, your positioning information maybe

less than optimal, and position accuracy may be off by as much as 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 operation. It usually occurs when you are tracking 3, 4, or 5 satellites, and

the satellites have poor geometry relative 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 factory 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 guidance 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 position

accuracy is 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 normal. 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 page 110 of this manual. An icon similar to the one at left will be displayed

in the upper left corner of the screen.

Red/Yellow Solid

Dead Reckoning . When normal GPS or DGPS operation is not available, this LED sequence

is provided to quickly identify the DR navigation mode. A DR indicator is also displayed on

all screens in the upper left hand corner of the display.

Red Solid

Tracking one or more satellites (no position update). This is also normal for the

first 2 minutes or so when turning the unit on. The very first time you turn the unit on,

allow the receiver to run for at least 20 minutes after changing to Red Solid to collect an

almanac from the satellites, regardless of whether a position update has been calculated

or not. This is also a normal indication if the HDOP is greater than 10. The HDOP value

can be read in the GPS function screens.

Yellow Solid

GPS position update has a poor HDOP value. You may see this from time to time

during normal operation. It usually occurs when you are tracking 3, 4, or 5 satellites,

and the satellites have poor geometry relative to your position. If you are patient, the

condition will normally go back to Green Solid when you pick up another satellite or the

geometry of the existing satellites improves. The factory 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 10 to 30 meters. You can press

the GPS function key and refer to the GPS section in this manual for guidance if this light

condition occurs.

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