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iv Z-Family Technical Reference Manual

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Z-Family 1
Technical Reference Manual 1
Trademarks 3
Table of Contents 5
List of Figures 13
List of Tables 15
Introduction 21
Receiver Options 22
[B] RTCM Base 23
[U] RTCM Remote 23
[E] Event Marker 23
REMOTE.EXE to access and 24
Operation 25
PCMCIA File Structure 26
File Types 27
File Naming Convention 28
Session Programming 30
Position Mode/ALT Fix Mode 31
Daisy Chain Mode 31
Point Positioning 32
Remote Monitoring 32
Event Marker 32
1PPS Out 35
Data Output 35
Transferring GPS Data 36
Synchronization to GPS Time 36
Default Parameters 37
Operation 19 39
Multipath Mitigation 41
Signal to Noise Ratio 43
Antenna Reduction 44
Base Stations 47
RTCM 18 & 19 48
RTCM 20 & 21 49
Ashtech DBN Format 50
Differential and RTK 51
Message Rate 52
Mask Angle 56
Base Station Position 56
Base Station Antenna Offset 57
Using Reference Station ID 57
Reference Station Health 57
Other RTCM Messages 57
Remote Stations 58
Using RTCM Messages 59
Using Ashtech DBN Messages 60
Base Station Data 61
Base Data Latency 62
Float and Fixed Solutions 64
Carrier Phase Initialization 65
LatError() 66
LonError() 66
Mask Angles 67
Auto Differential Mode 67
RTCM Messages 67
Understanding RTK/CPD 71
Data Link Monitor 72
Real-time Solution Output 72
Vector Solution Output 73
Solution Storage 74
Troubleshooting 75
CPD Solution Parameters 77
Dynamics: $PASHS,CPD,DYN 78
Fast CPD: $PASHS,CPD,FST 79
Multipath: $PASHS,CPD,MTP 79
Rate: $PASHS,CPD,PER 79
Universal RTCM Base Station 80
Understanding 81
Coordinate Transformation 83
Interpretation 84
Datum to Grid 87
Projection Types 88
Coordinate Transformation 69 89
Figure 5.4: Oblique Mercator 89
Figure 5.5: Stereographic 89
Elevation Modeling 90
Command/Response Formats 91
Receiver Commands 93
Command/Response Formats 75 95
ALT: Set Ellipsoid Height 97
ANH: Set Antenna Height 97
ANT: Set Antenna Offsets 98
BEEP: Beeper Set-up 100
CTS: Port Protocol Setting 101
DSC: Store Event String 101
DSY: Daisy Chain 101
ELM: Recording Elevation Mask 102
EPG: Epoch Counter 102
FIL,D: Delete a File 103
FIX: Altitude Fix Mode 103
FIL,C: Close a File 103
Commands 105
HDP: HDOP Mask 106
INF: Set Session Information 106
INI: Receiver Initialization 108
ION: Set Ionospheric Model 109
LPS: Loop Tracking 110
LTZ: Set Local Time Zone 111
MDM: Set Modem Parameters 112
Parameters Description Range 117
PDP: PDOP Mask 119
PEM: Position Elevation Mask 119
PJT: Log Project Data 121
PMD: Position Mode 122
POS: Set Antenna Position 122
POW: Battery Parameters 123
PPO: Point Positioning 124
PPS: Pulse Per Second 124
PRT: Port Setting 125
PWR: Sleep Mode 126
RCI: Recording Interval 126
REC: Data Recording 126
RID: Receiver ID 127
RNG: Data Type 128
RTR: Real-Time Error 129
SAV: Save User Parameters 129
SES: Session Programming 129
SID: Serial Number 132
SIT: Set Site Name 132
SPD: Serial Port Baud Rate 133
STA: Satellite Status 133
SVS: Satellite Selection 134
TLT : Tiltmeter Set-up 135
TLT,INTVL: Tiltmeter Interval 136
TST:Output RTK Latency 137
UNH: Unhealthy SVs 137
USE: Use Satellites 137
VDP: VDOP Mask 137
WAK: Warning Acknowledgment 138
WARN: Warning Messages 138
Command/Response Formats 119 139
Command/Response Formats 121 141
WKN: GPS Week Number 142
Raw Data Commands 143
Query Commands 144
CBN: CBEN Message 145
Command/Response Formats 129 149
DBN: DBEN Message 150
Command/Response Formats 131 151
EPB: Raw Ephemeris 152
MBN: MBN Message 154
Command/Response Formats 135 155
Command/Response Formats 137 157
PBN: Position Data 159
RAW: Query Raw Data Parameter 161
SAL: Almanac Data 162
SNV: Ephemeris Data 164
Command/Response Formats 145 165
NMEA Message Commands 166
ALM: Almanac Message 168
GDC: User Grid Coordinate 172
GGA: GPS Position Message 174
MSG: Base Station Message 186
PER: Set NMEA Send Interval 191
POS: Position Message 191
PTT: Pulse Time Tag message 193
RRE: Residual Error 196
SAT: Satellite Status 198
TTT: Event Marker 199
UTM: UTM Coordinates 200
Command/Response Formats 181 201
$PASHR,UTM 201
VTG: Velocity/Course 202
XDR: Transducer Measurements 204
ZDA: Time and Date 205
-20 Local zone offset (min) 206
Query: RTCM Status 208
Command/Response Formats 189 209
AUT: Auto Differential 210
BAS: Enable Base Station 211
EOT: End of Transmission 211
INI: Initialize RTCM 211
MAX: Max Age 211
REM: Enable Remote RTCM 212
MSG: Define Message 212
OFF: Disable RTCM 212
QAF: Quality Factor 212
SEQ: Check Sequence Number 213
SPD: Base Bit Rate 213
STH: Station Health 214
STI: Station ID 214
TYP: Message Type 215
CPD Commands 216
CPD: RTK Status 218
Command/Response Formats 199 219
AFP: Ambiguity Fixing 220
ANT: Antenna Parameters 220
DLK: Data Link Status 222
DYN: Rover Dynamics 224
ENT: Use Current Position 225
FST: Fast CPD Mode 226
INF: CPD Information 226
MOD: CPD Mode 227
MTP: Multipath 229
Command/Response Formats 211 231
OUT: Solution Output 232
PEB: Base Broadcast Interval 232
PED: DBEN Transmission Period 233
PER: CPD Update Interval 233
POS: Set Base Position 234
PRT: Port Output Setting 235
RST: Reset CPD 235
STS: CPD Solution Status 235
UBP: Use Base Position 236
DTM: Datum Selection 238
FUM: Fix UTM Zone 238
FZN: Set UTM Zone to Fix 239
HGT: Height Model Selection 240
UDD: User Defined Datum 240
Reference A-1 247
Reference 249
Global Product Support 251
Corporate Web Page 253
Ashtech Bulletin Board 253
Supported Protocols 254
Repair Centers 255
Numerics 259

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