RXM-GPS-F4-T Linx Technologies, RXM-GPS-F4-T Datasheet - Page 27

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RXM-GPS-F4-T

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

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
103 – Query / Rate Control
This command is used to control the output of standard NMEA messages
GGA, GLL, GSA, GSV, RMC and VTG. Using this command message,
standard NMEA messages may be polled once, or setup for periodic
output. Checksums may also be enabled or disabled depending on the
needs of the receiving program. NMEA message settings are saved in
battery-backed memory for each entry when the message is accepted.
Figure 25 below contains the values for the following example:
1. Query the GGA message with checksum enabled
2. Enable VTG message for a 1Hz constant output with checksum
3. Disable VTG message
Figure 25: Query / Rate Control Example
1. Default setting is GGA, GLL, GSA, GSV, RMC and VTG NMEA messages are enabled
Query / Rate Control Example
$PSRF103,00,01,00,01*25
enabled
$PSRF103,05,00,01,01*20
$PSRF103,05,00,00,01*21
with checksum at a rate of 1 second.
CksumEnable
Message ID
<CR> <LF>
Checksum
Name
Mode
Rate
Msg
$PSRF103
Example
*25
00
01
00
01
1
seconds
Units
23
Description
PSRF103 protocol header
See Figure 26
0=SetRate, 1=Query
Output: off=0, max=255
0=Disable, 1=Enable Checksum
End of message termination

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