3Paging Tones— you can set the radio to play a short, selectablepaging tone when it transmits, and sound the same tone when itreceives a signal.Signal Strength Indicator — a graduated bar shows the relativestrength of the received signal.Time-Out Timer — lets you set a maximum transmission time in-terval from 0 to 16 1 / 2 minutes in 10-second increments.Busy Channel Lock Out — prevents transmitting while the se-lected channel is receiving a signal.TX Delay — reduces squelch tail when communicating usingCTCSS.Scan Delay — delays the restart of scanning when the radiolocks onto a channel.Earphone Jack and External Microphone Jack — let you con-nect an optional earphone, external microphone, or combinationheadset, for more flexible operation.External Power Jack — lets you use an external power sourcefor maximum output.30 Memory Locations — let you store up to 30 frequencies andother settings.Back Light — makes your transceiver easy to operate in low-light situations.Key Lock — lets you lock the transceiver’s keys to prevent acci-dentally changing settings.We recommend you record your transceiver’s serial numberhere. The number is on the transceiver’s back panel.Serial Number ____________________________