Dell™ Latitude™ D430. • Built-in Wi-Fi Catcher. interference, transmission barriers (such as walls and building material. Catcher™ D531 Ed. This manual is available on Internet. Log on to: worldgov.info I. KEY TRANSMISSION MODE make-only keyboard. Dell™ Latitude ™ D620 RoadReady™. • Quickly find a network, without opening your notebook with the Dell WiFi Catcher. For high speed transmission.