Ashtech Z-sensor Especificaciones Pagina 181

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Command/Response Formats 161
Commands
GSN: Signal Strength/Satellite Number
$PASHS,NME,GSN,c,s
This command enables/disables the signal strength/satellite number response message
on port c, where c is either A, B, C, or D, and s is ON or OFF.
Example: Enable GSN message on port C
$PASHS,NME,GSN,C,ON <enter>
$PASHQ,GSN,c
Query signal strength message where c is the optional output serial port.
Example: Query GSN message on port A
$PASHQ,GSN,A <
ENTER>
$GPGSN
The response message contains the GPS PRN number and corresponding signal
strength for each locked satellite. The response message is in the form:
$GPGSN,d1,n(d2,f3,)d4*cc <enter>
empty field Satellite in channel 3
04 Satellite in channel 4
27 Satellite in channel 5
26 Satellite in channel 6
07 Satellite in channel 7
empty field Satellite in channel 8
empty field Satellite in channel 9
empty field Satellite in channel 10
empty field Satellite in channel 11
09 Satellite in channel 12
3.2 PDOP
1.4 HDOP
2.9 VDOP
*38 checksum
Table 6.92: Typical GSA Message
Item Significance
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