Specifications

176 Z-Family Technical Reference Manual
RRE: Residual Error
$PASHS,NME,RRE,c,s
This command enables/disables the satellite residual and position error message to
port c, where c is A, B, C, or D, and s is ON or OFF. This message is not output
unless a position is computed. If only 4 SVs are used in the position solution,
residuals are not computed and RRE outputs zeroes in the residual and position error
fields. If 3 or less SVs are used, then no RRE message is output.
Example: Enable RRE message on port A
$PASHS,NME,RRE,A,ON <enter>
$PASHQ,RRE,c
Query range residual message where c is the optional output serial port. The message
is not output unless position is being computed.
Example: Send RRE message to Port A
$PASHQ,RRE,A <enter>
$GPRRE
The response message is in the form:
$GPRRE,d1,n(d2,f3),f4,f5*cc <enter>
Table 6.111: RMC Response Structure
Parameter Description
213357.20 UTC time of the position fix (hhmmss.ss)
A Valid position
3722.410857 Latitude ddmm.mmmmmm
N North Latitude
12159.773686 Longitude dddmm.mmmmmm
W West Longitude
000.3 Speed over ground, knots
102.4 Course Over Ground, degrees True
290498 date, 29 April 1998
15.4 Magnetic Variation, degrees
W Westerly variation (W) adds to True course
*43 Hexadecimal checksum