Elevation Mask - Message I.d.139; Power Mask - Message I.d.140 - RoyalTek REB-3000 Operational Manual

RoyalTek RGM-3000/REB-3000
GPS Module Operational Manual)
A0A20003 – Start Sequence and Payload
Length
8A011E – Payload
00A9B0B3 – Message Checksum and
Table 28 DGPS Control
Name Bytes
Message ID
DGPS Selection
DGPS Time Out
Payload Length:3 bytes
Table 29 DGPS Selection
Byte Value
0
1
2
3
Elevation Mask – Message I.D.139
Table 30 contains the input values for the
following example:
Set Navigation Mask to 15.5 degrees
(Tracking Mask is defaulted to 5 degrees).
Table 30 Elevation Mask
Name
Message ID
Tracking Mask
Navigation Mask
Payload Length:5 bytes
Power Mask – Message I.D.140
Table 31 contains the input values for the
following example: Navigation mask to
33dBHz (tracking default value of 28)
Example:
A0A20003 – Start Sequence and Payload
Table 31 Power Mask
Name
Message ID
Tracking Mask
Navigation Mask
Payload Length:3 bytes
Binary(Hex)
Scale Example
1
1
1
Auto
Exclusive
Never
Mixed (not recommended)
Binary(Hex)
Bytes
Scale Example
1
2 *10 0032
2 *10 009B
Binary(Hex)
Scale Example
Bytes
1 8C
1 1C
1 21
End Sequence
Units
8A
01
1E Seconds
Description
Example:
A0A20005 – Start Sequence and Payload
Length
8B0032009B – Payload
0269B0B3 – Message Checksum and End
Sequence
Units
8B
degrees
degrees
Length
8C1C21 – Payload
00C9B0B3 – Message Checksum and
End Sequence
Units
ASCII 140
dBHz Not currently implemented
dBHz Range –28 to 50
26
Description
ASCII 138
See Table 27
Range 1 to 120
Description
ASCII 139
Not currently used
Range –20.0 to 90.0
Description