GM-205810-000 DeLorme, GM-205810-000 Datasheet - Page 16

• Manufacturer Part Number: GM-205810-000
• Description: MODULE GPS RCVR GPS2058
• Manufacturer: DeLorme
• Type: GPS Moduler

Specifications of GM-205810-000

• Frequency: 1.575GHz
• Data Rate - Maximum: 57.6 kbps
• Modulation Or Protocol: GPS
• Applications: GPS Receiver
• Current - Receiving: 50mA
• Data Interface: PCB, Surface Mount
• Memory Size: 16kB Flash
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 40 Pin
• Processor Used: STA2058
• Operating Voltage: 3.3 V
• Operating Current: 85 mA
• Frequency Range: 1575.42 MHz
• Operating Temperature Range: - 40 C to + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Sensitivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: Consumer handheld, PND (portable navigation), in-vehicle navigation/telematics systems
• Other names: GM-205810-000TR

Command: NMEA Messaging Configuration
Format: $PDME,11,n1,h,n2<cr><If>
Variables: All variables are independent of each other.
Return: “$PDME,11,OK” if the command is accepted
Operation: Configures the communications parameters for the NMEA port (only).
Application: Used for customizing the NMEA messages and changing communications rates. (All serial communications uses
<Baud Rate>,8,N,1.) Care should be taken when using higher rates so as to avoid overloading the stream. For example,
the GSV messaging will broadcast three lines of ASCII when a full contingent of satellites is available, so lower rates are
recommended for GSV. The default message selection is given by 0x40+0x08+0x04+0x02 = 0x4E, so an equivalent default
statement is “$PDME,11,4800,0x4E,0”.
Note: GGA5 is equivalent to GGA except that there are 5 decimal places of precision in the location values.
Command: System Control Set A, Bypass Internal 1.8V Regulator
Format: $PDME,12,n<cr><If>
Variables: n = 2
Return: “$PDME,12,OK” if the command is accepted
Operation: Assumes an external 1.8V source is connected to pin 12 of the module. This command bypasses the internal
regulator in favor of the external connection. The bypass is cleared through a hardware reset.
Application: The primary purpose is to save on power. The internal regulator takes 3.3V as its source and the core of the device
operates at 1.8V wasting significant power.
Command: System Control Set A, Invalidate RTC
Format: $PDME,12,n<cr><If>
Variables: n = 3
Return: “$PDME,12,OK” if the command is accepted
Operation: This can be used to invalidate the RTC information obtained from the first satellite.
Application: Diagnostic command; this is a key component in a Cold Start but rarely used alone. It is most effective in the
early stages of establishing a fix because once communications from multiple satellites has been established the module will
assume its RTC is valid.
Command: System Control Set A, Install SBAS Satellite List
Format: $PDME,12,n<cr><If>
Variables: n = 4
Return: “$PDME,12,OK” if the command is accepted
Operation: This is an internal command that moves the SBAS list into the WAAS/SBAS operational code.
Application: This is usually handled automatically but may be of value if WAAS communications is problematic.
n1= Baud Rate, acceptable values
h = Hex value to enable the corresponding NMEA message
n2 = 0 (broadcast on UTC second, default)
4800 (default)
9600
19200
38400
57600
115200
0x01 = GGA
0x02 = GGA5 (default; see note below)
0x04 = GSA (default)
0x08 = GSV (default)
0x10 = VTG
0x20 = GLL
0x40 = RMC (default)
0x80 = RF
0x40000 = RF Test, diagnostic
1 (broadcast after fix)
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