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RoyalTek RGM-3000/REB-3000
GPS Module Operational Manual)
45
****B0B3 – Message checksum and End Sequence
Table 57 Royaltek Navigation Data
Binary(Hex) ASCII(Decimal)
Name
Bytes
Scale Example
Units
Scale Example
Message ID 1 64 100
Year 2 07D1 2001
Month 2 000C 12
Day 2 0005 5
Hours 2 0011 17
Minutes 2 001E 30
Seconds 4 *1000 5202 Sec.
÷1000
20.994
Degree of Latitude 2 19 degree 25
Minutes of Latitude 4 *10000 0001818C Min.
÷10000
9.8700
Degree of Longitude 2 79 degree 121
Minute of Longitude 4 *10000 0002BA64 Min.
÷10000
17.8788
Altitude 4 000000FA meter 250
Validity 1 01 1
Speed 2 *10 0064 Km/h
÷10
10.0
Course over ground 2 0080 Degree 128
PDOP 2 *10 012C
÷10
30.0
HDOP 2 *10 012C
÷10
30.0
VDOP 2 *10 012C
÷10
30.0
Payload Length: 42 bytes. This protocol is provided from RoyalTek firmware Ver. 1.7. release
* *hh<CR><LF> Check Sum and sentence termination delimiter
Set Ephemeris – Message I.D.254
This command enables the user to upload an ephemeris to the Evaluation unit.
Note – This feature is not documented in this manual . For information on implementation contact
SiRF Technology Inc.
Development Data – Message I.D.255
Output Rate: Receiver generated
Example :A0A2**** - Start Sequence and Payload Length
FF************* - Payload
****B0B3 – Message Checksum and End Sequence
Table 58 Development Data
Binary(Hex) ASCII(Decimal)
Name
Bytes
Scale Example
Units
Scale Example
Message ID 1 FF 255
Payload Length:Variable
Note – Messages are output to give the
user information of receiver activity.
Convert to symbol to assemble message
(i.e., 0x4E is ‘N’) these are low priority task
and are not necessarily output at constant
intervals.