RXM-GPS-F4-T Linx Technologies, RXM-GPS-F4-T Datasheet - Page 19

• Manufacturer Part Number: RXM-GPS-F4-T
• Description: GPS Modules F4 Series GPS Recvr Module Tape and Reel
• Manufacturer: Linx Technologies

Specifications of RXM-GPS-F4-T

• Rohs: yes
• Frequency Band: 1575.42 MHz
• Number Of Channels: 48
• Time To First Fix (cold Start): 32 s
• Acquisition Sensitivity: - 159.5 dBm
• Horizontal Position Accuracy: 3 m
• Operating Supply Voltage: 1.8 V
• Operating Supply Current: 56 mA
• Interface Type: Serial
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Dimensions: 15 mm x 13 mm x 2.2 mm
• Minimum Operating Temperature: - 30 C

Interfacing with NMEA Messages
The following sections outline the data structures of the various NMEA
protocols that are supported by the module. By default, the NMEA
commands are output at 9,600bps, 8 data bits, no parity and 2 stop bits.
GGA – Global Positioning System Fixed Data
Figure 12 below contains the values for the following example:
$GPGGA,053740.000,2503.6319,N,12136.0099,E,1,08,1.1,63.8,M,15.2,M,,0000*64
Figure 12: Global Positioning System Fixed Data Example
Figure 13: Position Indicator Values
Position Indicator Values
Global Positioning System Fixed Data Example
Position Fix Indicator
Geoid Separation
Age of Diff. Corr.
Diff. Ref. Station
Satellites Used
Value
E/W Indicator
N/S Indicator
MSL Altitude
3–5
Message ID
<CR> <LF>
Checksum
UTC Time
Longitude
0
1
2
6
Latitude
HDOP
Name
Units
Units
Description
Fix not available or invalid
GPS SPS Mode, fi x valid
Differential GPS, SPS Mode, fi x valid
Not supported
Dead Reckoning Mode, fi x valid
053740.000
12136.0099
2503.6319
Example
$GPGGA
0000
63.8
15.2
*64
1.1
08
M
M
N
E
1
second
meters
meters
meters
meters
Units
–
15
–
Description
GGA protocol header
hhmmss.sss
ddmm.mmmm
N=north or S=south
dddmm.mmmm
E=east or W=west
See Figure 11
Range 0 to 12.
Horizontal Dilution of Precision
Null fi elds when DGPS is not used
End of message termination