Hand Held Products 7200/UG - Manual (Page 24)

C H A P T E R 2 D O L P H I N B A S I C S
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Liquid Crystal Display (LCD)
The alphanumeric, scrollable LCD consists of nine rows with 20 character positions
per row and 119 x 73 graphics pixels, which are software addressable. The
electroluminescent backlight allows you to view the display in low light conditions. To
conserve power, the backlight is automatically turned off after 30 seconds. The on/off
function and contrast is software programmable.
Note: The ninth row is used for system icons and application-defined icons.
Speaker
The Dolphin Batch terminal’s internal speaker emits a sound level of 80dB at 10 cm.
The sound level for the Dolphin RF terminal’s external speaker is 90dB at 10 cm.
RF Antenna
The Dolphin RF terminal’s 1.36 inch (34.5 mm) antenna is a unity gain, helically-
loaded, monopole antenna.