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RoyalTek RGM-3000/REB-3000
GPS Module Operational Manual)
29
following example: Sets the receiver into
low power Modes. Example: Set receiver
into Trickle Power at 1 hz update and 200
ms On Time.
A0A20009—Start Sequence and Payload
Length
97000000C8000000C8—Payload
0227B0B3—Message Checksum and End
Sequence
Table 38 Set Trickle Power Parameters I.D. 151
Binary(Hex)
Name
Bytes
Scale Example
Units
Description
Message ID 1 97 ASCII 151
Push To FixMode 2 0000 ON=1, OFF=0
Duty Cycle 2 *10 00C8 % % Time on
Milli Seconds On
Time
4 000000C8 ms Range 200 ~ 500 ms
Payload Length: 9bytes.
Computation of Duty Cycle and On
Time.
The Duty Cycle is the desired time to be
spent tracking.The On Time is the duration
of each tracking period (range is 200 - 900
ms). To calculate the TricklePower update
rate as a function of Duty cycle and On
Time, use the following formula:
Off Time = (On Time - (Duty Cycle * On
Time)) / Duty Cycle
Update rate = Off Time + On Time
Note – On Time inputs of > 900 ms will
default to 1000 ms
Following are some examples of
selections:
Table 39 Example of selections for Trickle Power Mode of Operation
Mode On Time (ms) Duty Cycle (%) Update rate (1/Hz)
Continuous 1000 100 1
Trickle Power 200 20 1
Trickle Power 200 10 2
Trickle Power 300 10 3
Trickle power 500 5 10
See Table 40 for supported/unsupported settings.
Table 40 Trickle Power Mode Settings
Update Rate (second)
On
Time
(ms)
1 2 3 4 5 6 7 8
200 Y Y N N N N N N
300 Y Y Y Y Y Y N N
400 Y Y Y Y Y Y Y Y
500 Y Y Y Y Y Y Y Y
600 Y Y Y Y Y Y Y Y
700 Y Y Y Y Y Y Y Y
800 Y Y Y Y Y Y Y Y
900 Y Y Y Y Y Y Y Y
Y = Yes (Mode supported)
N = No (Mode NOT supported)