112BASIC OPERATION2■ User Set modeIf the transceiver has [User Set Mode] assigned to it, youcan “customize” the transceiver operation to suit your prefer-ences and operating style.Entering the User Set mode:q Push and hold [User Set Mode] for 1 sec. to enter the UserSet mode.w Push [P0] to select the appropriate item.Then push [P2] or [P3] to set the desired value or option.• In the User Set mode, the selectable items are preset by yourdealer. The presetable items are Backlight, Beep, Beep Level,SQL Level, AF Min Level, Mic Gain, Horn, Battery Voltage,Signal Moni and Lone Worker.e Push and hold [User Set Mode] for 1 sec. again to exit theUser Set mode.■ Scrambler functionThe voice scrambler function provides private communica-tion between stations.The optional Rolling or Non-rolling type can be available.q Push [Scrambler] to turn the scrambler function ON.• “ ” (Scrambler indicator) appears.w Push [Scrambler] again to turn the scrambler functionOFF.• “ ” disappears.■ Emergency transmissionThe emergency call can be performed using [Emergency]. (p. 5)When [Emergency] is pushed for the specified time period,the DTMF or 5-tone emergency signal is transmitted onceor repeatedly on the emergency channel depending on thechannel. However, when no emergency channel is specified,the signal is transmitted on the previously selected channel.If you want to cancel the emergency call, push and hold thekey again before transmitting the call.Emergency call is also available with the MDC 1200 signal-ing system. (p. 13)