RoyalTek REB-3000 - Manual (Page 28)

RoyalTek RGM-3000/REB-3000
GPS Module Operational Manual)
23
Example:
A0A20002 – Start Sequence and Payload
Length
8400 – Payload
0084B0B3 – Message Checksum and End
Sequence
Table 23 Software Version
Binary(Hex)
Name Bytes Scale Example Units Description
Message ID 1 84 ASCII 132
TBD 1 00
Payload Length: 2 bytes
DGPS Source – Message I.D. 133
This command allows the user to select the
source for DGPS corrections. Options available
are:
External RTCM Data (any serial port)
WAAS (subject to WAAS satellite availability)
Internal DGPS beacon receiver
Example 1: Set the DGPS source to External
RTCM Data
A0A20007—Start Sequence and Payload Length
85020000000000—Payload
0087B0B3—Checksum and End Sequence
Table B-6 DGPS Source Selection (Example 1)
Binary(Hex)
Name Bytes Scale Example Units Description
Message ID 1 85 Message identifier
DGPS Source 1 00 See Table B-8. DGPS Source Selections
Internal Beacon 4 00000000 Hz See Table B-9. Internal Beacon Search
setting.
Internal Beacon
Bit Rate 1 0 BPS See Table B-9. Internal Beacon Search
setting.
Payload: 7Bytes.
Example2: Set the DGPS source to Internal
DGPS Beacon Receiver
Search Frequency 310000, Bit Rate 200
A0A20007—Start Sequence and Payload Length
85030004BAF0C802—Payload
02FEB0B3—Checksum and End Sequence
Table B-7 DGPS Source Selection (Example 2)
Binary(Hex)
Name Bytes Scale Example Units Description
Message ID 1 85 Message identifier
DGPS Source 1 03 See Table B-8. DGPS Source Selections
Internal Beacon 4 0004BAF0 Hz See Table B-9. Internal Beacon Search
setting.
Internal Beacon
Bit Rate 1 C8 BPS See Table B-9. Internal Beacon Search
setting.
Payload: 7Bytes.
Table B- 8 DGPS Source Selections
DGPS Source Hex Decim
al
Description
None 00 0 DGPS corrections will not be used (even if available).