Data Hacking

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Chapter 9 — Examining the <strong>Data</strong> WPL (Waypoint Location) When a route is active, this NMEA sentence is sent once for each waypoint that the route contains, in sequence. When all waypoints have been sent, GPR00 is sent in the next data set to indicate the end. In any block of NMEA sentences, only one WPL or GPR00 sentence will be sent. $GPWPL,llll.ll,e,yyyyy.yy,f,####*hh 1111.11 Destination waypoint latitude e N or S (for latitude) yyyyy.yy Destination waypoint longitude f E or W (for longitude) #### Waypoint ID *hh Checksum ZDA (Date and Time) This sentence provides date and time information. $GPZDA,hhmmss.ss,dd,mm,yyyy,xx,yy*hh hhmmss UTC time dd Day mm Month yyyy Year xx Local zone hours (-13 to 13) yy Local zone minutes (00 to 59) *hh Checksum ALM (GPS Almanac <strong>Data</strong>) The GPS almanac data sentence contains GPS week number, satellite health, and complete almanac data for one satellite. Multiple satellites mean that multiple messages may be transmitted, one for each satellite in the GPS constellation (up to a maximum of 32 messages). This sentence breaks the 80-character rule. $GPALM,A,B,C.D,E,F,G,H,J,K,L,M,T1,T2,*hh 203
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Hacking GPS
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Hacking GPS Published by Wiley Publ
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Credits Acquisitions Editor Katie M
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Acknowledgments Extra special thank
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Contents Acknowledgments . . . . .
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Contents Chapter 5: Protecting Your
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Hardware Hacks part in this part Ch
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4 Part I — Hardware Hacks Garmin
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6 Part I — Hardware Hacks Diagnos
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8 Part I — Hardware Hacks Magella
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10 Part I — Hardware Hacks Magell
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12 Part I — Hardware Hacks Summar
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14 Part I — Hardware Hacks No cab
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16 Part I — Hardware Hacks FIGURE
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18 Part I — Hardware Hacks Combin
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24 Part I — Hardware Hacks 8. Car
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26 Part I — Hardware Hacks 12. A
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30 Part I — Hardware Hacks 6. Add
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34 Part I — Hardware Hacks Cradle
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38 Part I — Hardware Hacks Now ta
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Power Hacks Without power, even the
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FIGURE 3-2: AA lithium batteries Ch
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Chapter 3 — Power Hacks FIGURE 3-
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Chapter 3 — Power Hacks But what
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Chapter 3 — Power Hacks These sma
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Chapter 3 — Power Hacks As you ca
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Chapter 3 — Power Hacks With two
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Chapter 3 — Power Hacks 3. Take a
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Chapter 3 — Power Hacks 7. Finall
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FIGURE 3-21: 12-volt output from a
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Antenna Hacks Making the most out o
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FIGURE 4-2: The Garmin eTrex receiv
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Chapter 4 — Antenna Hacks FIGURE
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Chapter 4 — Antenna Hacks The con
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FIGURE 4-9: MMCX connector on a Hai
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Chapter 4 — Antenna Hacks For tru
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This sequence is summarized in Figu
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FIGURE 4-14: SmartSolar solar charg
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Carrying a GPS Signal via Cable Cha
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Using a Signal Repeater Chapter 4
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Chapter 4 — Antenna Hacks Aluminu
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Chapter 4 — Antenna Hacks 6. Now
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Summary FIGURE 4-20: Holding the wi
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Protecting and Mounting Your GPS AG
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FIGURE 5-2: Commercial screen prote
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Chapter 5 — Protecting and Mounti
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More Screen Armoring Chapter 5 —
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FIGURE 5-18: Pressure-equalizing va
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FIGURE 5-22: Aquapac suited to an i
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Software Hacks part in this part Ch
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126 Part II — Software Hacks Mana
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128 Part II — Software Hacks If t
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130 Part II — Software Hacks You
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132 Part II — Software Hacks FIGU
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134 Part II — Software Hacks Like
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138 Part II — Software Hacks 11.
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140 Part II — Software Hacks This
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144 Part II — Software Hacks It
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Making Connections In this chapter,
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Chapter 7 — Making Connections Th
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FIGURE 7-4: A PC serial port FIGURE
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FIGURE 7-6: Haicom Bluetooth GPS se
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Which Connection Is Best? So which
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FIGURE 7-10: Port speed settings on
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Chapter 7 — Making Connections 4.
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Chapter 7 — Making Connections If
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Data Hacking part in this part Chap
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166 Part III — Data Hacking Put s
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168 Part III — Data Hacking This
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170 Part III — Data Hacking y N x
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172 Part III — Data Hacking Manua
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174 Part III — Data Hacking The g
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176 Part III — Data Hacking 3. Se
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Page 424: 196 Part III — Data Hacking NMEA
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Page 442: Chapter 9 — Examining the Data BW
Page 446: GPS NMEA LOG Chapter 9 — Examinin
Page 450: GPS Diagnostic Chapter 9 — Examin
Page 454: FIGURE 9-7: Playing back NMEA sente
Page 458: FIGURE 9-11: Adding errors to the s
Page 462: Chapter 9 — Examining the Data On
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Page 470: Recording Simulated NMEA Using GpsG
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Page 478: More Data Tricks In this chapter, w
Page 482: FIGURE 10-2: G7toWin configuration
Page 486: Chapter 10 — More Data Tricks The
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FIGURE 10-10: Pasting the bitmap in
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FIGURE 10-12: Contents of the downl
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FIGURE 10-16: The G7toCE configurat
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1. Turn off the device. 2. Connect
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Chapter 10 — More Data Tricks One
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Chapter 10 — More Data Tricks GP
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If the GPS time is early, then a ne
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FIGURE 10-31: Good antenna location
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FIGURE 10-34: A reradiating antenna
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FIGURE 10-37: VisualGPSXP Chapter 1
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FIGURE 10-40: Mask angle displayed
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Chapter 10 — More Data Tricks Thi
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Playtime part in this part Chapter
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256 Part IV — Playtime FIGURE 11-
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258 Part IV — Playtime This new s
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260 Part IV — Playtime One variat
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262 Part IV — Playtime As you ge
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264 Part IV — Playtime Search Pat
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266 Part IV — Playtime Look for t
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272 Part IV — Playtime TomTom sof
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274 Part IV — Playtime In additio
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276 Part IV — Playtime To keep th
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278 Part IV — Playtime Test all t
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286 Part IV — Playtime Power Prot
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288 Part IV — Playtime Do take gr
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292 Part IV — Playtime Points of
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294 Part IV — Playtime Using an a
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298 Part IV — Playtime To summari
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300 Part IV — Playtime Foxhunt Th
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302 Part IV — Playtime Go Fetch!
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304 Appendix A — GPS Primer Sever
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306 Appendix A — GPS Primer The C
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308 Appendix A — GPS Primer A B F
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310 Appendix A — GPS Primer A FIG
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312 Appendix A — GPS Primer Error
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314 Appendix B — Websites/Interne
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316 Appendix B — Websites/Interne
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318 Glossary Coordinates A unique n
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Symbols and Numerics * (asterisk),
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C/A-code (Coarse/Acquisition), 290,
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MeMap package for, 134-139 personal
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GPS III, Garmin. See also Garmin pr
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software version, displaying, 11 sw
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personal reradiating antenna, 73-74
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soft reset actions required after,
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Data Hacking

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