topic Re: �??GPS position window�?�: data, skyplot, campus, qulity and debug, in ArcPad Questions

???GPS position window???: data, skyplot, campus, qulity and debug,

JamalNUMAN — Sun, 12 Jan 2014 19:38:25 GMT

???GPS position window???: data, skyplot, campus, qulity and debug,

I couldn???t precisely figure out the meaning of the information provided in the ???GPS position window???

Data

[ATTACH=CONFIG]30428[/ATTACH]

Skyplot

[ATTACH=CONFIG]30429[/ATTACH]

Campus

[ATTACH=CONFIG]30430[/ATTACH]

Quality

[ATTACH=CONFIG]30431[/ATTACH]

Debug

[ATTACH=CONFIG]30432[/ATTACH]

Thank you

Best

Jamal

Re: �??GPS position window�?�: data, skyplot, campus, qulity and debug,

Anonymous User — Tue, 14 Jan 2014 02:25:26 GMT

Original User: HannahFerrier

Hi Jamal,

There is an abundance of information on the GPS Position Window!! (most of it can be found here)

The Data Tab displays the following information:
Position Information
- GPS Location: the coordinates for the current GPS position
- Elevation: vertical position (altitude or depth)
- PDOP (positional dilution of precision): the accuracy of the current position (0-99)
- GPS Mode:
                  NOFIX = not recieving a position
                  2D = 3 satellites used to calculate x and y coordinates
                  3D = at least 4 satellites used to calculate x, y and z coordinates

Navigation Information (used when navigating to a location)
- SOG (speed over ground): the speed of the movement of the GPS position
- COG (course over ground): the direction of the movement of the GPS position
- DST (distance): the distance from the GPS to selected location
- BRG (bearing): the direction from the GPS to selected location

The GPS Skyplot show all of the GPS satellites that are visible to the receiver. Each satellite has an identification number. GPS satellites have vertical wings, GLONASS satellites have horizontal wings and SBAS satellites have no wings. Grey satellites are unavailable, colored satellites are available but are not used for calculating position. Satellites used for calculating position are colored and outlined in black.The Signal Strength Bar Chart shows the signal strength of all available satellites. Satellites used for calculating position are marked using a black asterisk.

The Compass is used when navigating to a location. This is the same navigation information as the Data Tab, but with a pictorial representation of the compass. COG is marked using the black arrow and BRG is marked using the red marker.

The Quality tab gives detailed GPS signal quality information. Some extra measures are:
- HDOP, VDOP and TDOP: These are the respective horizontal, vertical and time componants that make up overall PDOP
- EPE (estimated position error): pseudorange of GPS position consisting of HPE and VPE
- Satellites in solution/view: fraction of satellites used to calculate position from the overall available number of satellites
- DAGE (differential data age): the age of the information used for differential GPS

The GPS Debug Window lets you read the raw input from the GPS. This is especially helpful when troubleshooting GPS connections.

Hope this was helpful,

Hannah 🙂

Re: �??GPS position window�?�: data, skyplot, campus, qulity and debug,

JamalNUMAN — Thu, 16 Jan 2014 17:55:27 GMT

Hi Jamal,

There is an abundance of information on the GPS Position Window!! (most of it can be found here)

The Data Tab displays the following information:
Position Information
- GPS Location: the coordinates for the current GPS position
- Elevation: vertical position (altitude or depth)
- PDOP (positional dilution of precision): the accuracy of the current position (0-99)
- GPS Mode:
                  NOFIX = not recieving a position
                  2D = 3 satellites used to calculate x and y coordinates
                  3D = at least 4 satellites used to calculate x, y and z coordinates

Navigation Information (used when navigating to a location)
- SOG (speed over ground): the speed of the movement of the GPS position
- COG (course over ground): the direction of the movement of the GPS position
- DST (distance): the distance from the GPS to selected location
- BRG (bearing): the direction from the GPS to selected location

The GPS Skyplot show all of the GPS satellites that are visible to the receiver. Each satellite has an identification number. GPS satellites have vertical wings, GLONASS satellites have horizontal wings and SBAS satellites have no wings. Grey satellites are unavailable, colored satellites are available but are not used for calculating position. Satellites used for calculating position are colored and outlined in black.The Signal Strength Bar Chart shows the signal strength of all available satellites. Satellites used for calculating position are marked using a black asterisk.

The Compass is used when navigating to a location. This is the same navigation information as the Data Tab, but with a pictorial representation of the compass. COG is marked using the black arrow and BRG is marked using the red marker.

The Quality tab gives detailed GPS signal quality information. Some extra measures are:
- HDOP, VDOP and TDOP: These are the respective horizontal, vertical and time componants that make up overall PDOP
- EPE (estimated position error): pseudorange of GPS position consisting of HPE and VPE
- Satellites in solution/view: fraction of satellites used to calculate position from the overall available number of satellites
- DAGE (differential data age): the age of the information used for differential GPS

The GPS Debug Window lets you read the raw input from the GPS. This is especially helpful when troubleshooting GPS connections.

Hope this was helpful,

Hannah 🙂

Thank you very much Hannah for the very valuable elaboration. Now, it is much more clear.

Appreciated

Jamal