Messages
Chapter 5
WAAS GUS Signal Generator User Guide Rev 1
39
TX INHIBIT FIELD
This flag indicates the TX Inhibit status of the Message interface. If a ‘1’, this flag indicates if the transmitter has
been disabled through the Message Interface. If a ‘0’ this flag indicates that the Message interface has not disabled
the transmitter.
IF SWITCH POSITION FIELD
This flag indicates the current setting of the IF switch. If a ‘1’, this flag indicates that the IF switch has been
disabled. If a ‘0’, this flag indicates that the IF switch is enabled.
CW MODE ONLY FIELD
This flag indicates the current setting of the CW Only mode Switch. If a ‘1’, this flag indicates that the CW Mode
Only Switch is closed and that the Signal Generator is in CW mode only. If a ‘0’, this flag indicates that the CW
Mode Only Switch is open and that the Signal Generator is not in CW mode
5.1.4.5
Error Status Fields
The Error Status field contains any errors that may have occurred during the last 1 second epoch. The Error Status
field bits are reset to zero after the status message is sent.
shows the Error Status field byte and bit order.
shows the Error Status bit fields.
Table 39: Error Status Field
Table 40: Error Status Bit Fields
D1
IF Switch Position
0 = Enable
1 = Disable
D2
CW Mode only
0 = Not CW Mode
1 = CW Mode
D3-D7
Reserved for future use. Set to zero.
Bit
Switch Status Description
Range
LS Byte [12]
MS Byte [13]
D7
D6
D5
D4
D3
D2
D1
D0
D15
D14
D13
D12
D11
D10
D9
D8
LSB
MSB
Bit
Error Status Description
Range
D0
CMP Data Error, see
0 = No Error
1 = Error
D1
Update Data not complete at 1PPS
0 = Complete
1 = Incomplete
D2
Status Data not Complete at 1PPS
0 = Complete
1 = Incomplete
D3
Parity Error on Received Data
0 = No Parity Error
1 = Parity Error