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Data Hacking

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Summary<br />

FIGURE 4-20: Holding the wire in place at the top<br />

FIGURE 4-21: Finished antenna<br />

Chapter 4 — Antenna Hacks<br />

Helix pitch 4.75 centimeters Helix wire - 16 gauge<br />

8 turns in all<br />

Ground plane to first turn<br />

distance is 2.3 centimeters<br />

Ground plane 19<br />

centimeters diameter<br />

This chapter examined external antennas and how to use them. You looked at antennas that<br />

you can attach directly to a GPS via a connector, and reradiating antennas that take a signal<br />

and pipe it to a location that can’t receive it.<br />

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