UNIDEN Model UH400SX, UH400SX-RM, UH500SX, UH500SX-RM OM5Controls and ConnectorsRotary CHANNEL SelectorMENU/ENTER - Menu and SelectButtonDUAL - Dual WatchMON - Monitor ButtonDCS/CTCSS - DCS and CTCSS ToneButtonMEM - Memory Scan Channels1.2.3.4.5.SCAN - Scan On/OffOS/GS - Open or Group ScanLiquid Crystal Display (LCD)SQ - Rotary Squelch controlVOL - Rotary Volume controlON/OFF - On/Off PUSH controlMIC - Front Microphone Jack6.7.8.9.10.Controls/ConnectorsUH400SX Front ViewUH500SX Front View1 23456 7 89101 2 3 4 5 678910uh400sx, uh500sx, uh400sx-RM, uhSec1:5 Sec1:5uh400sx, uh500sx, uh400sx-RM, uhSec1:5 Sec1:5 1/2/08 1:31:22 PM1/2/08 1:31:22 PM