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Amphibionics 07  3/24/03  9:13 AM  Page 295
                                        Chapter 7 / Turtletron: Build Your Own Robotic Turtle
                                                                                   FIGURE 7.22
                                                                                   Neck mount and sonar
                                                                                   ranger attached to
                                                                                   Turtletron’s body.























                        Attaching the antenna to the RF module.  Locate the 6-3/4 inch
                        whip  antenna  and  strip  1/2-inch  of  the  insulator  and  shielding
                        material  from  the  connector  wire.  Drill  a  hole  in  the  second
                        Frisbee, toward the edge, using a 1/4-inch bit. Mount the whip
                        antenna to the Frisbee by feeding the connector lead through the
                        hole and then fastening the mounting nut. Solder the wire to the
                        antenna  mount  area  on  the  back  of  the  Lynx  RXM-433-LC-S
                        receiver module. Bend the pins on the receiver module 90 degrees
                        downward, if this was not done earlier in Chapter 6. The finished
                        top cover with the antenna and receiver module attached is shown
                        in Figure 7.23.









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