Data Hacking

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Symbols and Numerics * (asterisk), starting NMEA sentence checksum, 196 , (comma), separating NMEA data items, 196 $ (dollar sign), starting NMEA sentences, 196 2-D trilateration, 307–309 3-D trilateration, 309–310 12-channel GPS receiver, 317 12-volt power supply, 47–49 14-channel GPS receiver, 317 A AAM sentence (waypoint arrival alarm), NMEA, 197 accuracy affecting geocaching, 261 definition of, 317 SA (selective availability) affecting, 255–257 acquisition time, 317 active antenna, 244–245, 317 active leg, 317 alkaline batteries battery packs from, making, 49–52 definition of, 41–42 recharging, 43 ALM sentence (almanac data), NMEA, 197, 203–204 almanac data for, 197, 203–204 definition of, 317 downloading after reset, 11 altitude determining with VisualGPS, 250 how satellites determine, 311 of satellites, 41, 61 antenna. See also signal active, 244–245, 317 for atomic clock system, 244–246 best performance from, getting, 65–66 comparing types of, 61–63 external antenna cautions regarding, 72 Index definition of, 318 disadvantages of, 69 for geocaching, 278–279 placement of, 70–72 types of, 66–68 when to use, 68–69 for geocaching, 278–279 patch antenna, 61–62, 64–65 quad-helix antenna advantages and disadvantages of, 62 building, 79–85 placement of, 63–64 reradiating antenna for atomic clock system, 244–246 cables for, 74 communal reradiating antenna, 74 definition of, 72 for geocaching, 279 personal reradiating antenna, 73–74 placement of, on car, 75–76 power requirements for, 74 range of, 74 types of, 73 types of, 61 anti-spoofing (A-S), used by PPS, 307 Aquapac carrier, 100–104, 286–287, 315 A-S (anti-spoofing), used by PPS, 307 asterisk (*), starting NMEA sentence checksum, 196 atomic clock definition of, 317 synchronizing PC time with, 236–246 used by GPS, 311 attenuation, 77–78 autolocating, Garmin products, 7 automotive circuit, connecting GPS receiver to, 16–17, 30. See also car AutoRoute (Microsoft), 270 availability definition of, 317 selective (SA), 255–256, 289–291, 319 azimuth graphs, VisualGPS, 248–249
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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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178 Part III — Data Hacking 3. No
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180 Part III — Data Hacking FIGUR
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182 Part III — Data Hacking 1. To
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184 Part III — Data Hacking When
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186 Part III — Data Hacking The d
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188 Part III — Data Hacking For a
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190 Part III — Data Hacking The o
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192 Part III — Data Hacking RoboG
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194 Part III — Data Hacking In ad
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196 Part III — Data Hacking NMEA
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198 Part III — Data Hacking Strin
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200 Part III — Data Hacking hhmms
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202 Part III — Data Hacking GSA (
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204 Part III — Data Hacking A Tot
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206 Part III — Data Hacking SiRF
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208 Part III — Data Hacking The a
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212 Part III — Data Hacking RECSI
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214 Part III — Data Hacking Figur
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216 Part III — Data Hacking In th
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218 Part III — Data Hacking 7. To
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220 Part III — Data Hacking The f
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222 Part III — Data Hacking usual
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228 Part III — Data Hacking The
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230 Part III — Data Hacking H/PC
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232 Part III — Data Hacking 2. Cr
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234 Part III — Data Hacking 7. Se
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236 Part III — Data Hacking Turni
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238 Part III — Data Hacking Doing
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246 Part III — Data Hacking Anten
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248 Part III — Data Hacking Azimu
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250 Part III — Data Hacking Navig
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252 Part III — Data Hacking Summa
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Hacking Geocaching If a gadget or d
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FIGURE 11-2: 20-yard uncertainty Th
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Chapter 11 — Hacking Geocaching 2
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FIGURE 11-4: A far bigger search ar
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Chapter 11 — Hacking Geocaching R
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FIGURE 11-6: Crisscross or grid sea
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Chapter 11 — Hacking Geocaching G
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GPXSpinner is available from www.gp
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Chapter 11 — Hacking Geocaching O
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FIGURE 11-16: Cables needed for a g
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FIGURE 11-19: Keep cables under con
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Chapter 11 — Hacking Geocaching F
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FIGURE 11-25: Lowe external antenna
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Chapter 11 — Hacking Geocaching H
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FIGURE 11-30: A Glowring Chapter 11
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Chapter 11 — Hacking Geocaching L
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Chapter 11 — Hacking Geocaching F
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GPS Games If anything drives the sa
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FIGURE 12-2: 10-meter inaccuracy co
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Chapter 12 — GPS Games The first
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Page 638: GPS Primer This appendix is a quick
Page 642: To be capable of passive all-weathe
Page 646: Appendix A — GPS Primer Standard
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Page 654: Appendix A — GPS Primer Receivers
Page 658: Websites/Internet Resources Here is
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Page 666: Glossary 12-channel A GPS receiver
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Page 678: C/A-code (Coarse/Acquisition), 290,
Page 682: MeMap package for, 134-139 personal
Page 686: GPS III, Garmin. See also Garmin pr
Page 690: software version, displaying, 11 sw
Page 694: personal reradiating antenna, 73-74
Page 698: soft reset actions required after,
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