OTHER OP-5SPEAKER MUTEWhile receiving or transmitting on the TX band, you maynot want to hear audio received on the other band. Usethis function to mute the speaker allocated to that band(not the TX band).While receiving, press [F], [MUTE] to switch the mutefunction ON or OFF.• The icon appears on the display when the function isON.■ Mute Hang-up TimeWhen using Speaker Mute, you may want to adjust thetime interval between when you receive a signal andwhen the speaker is muted.1 Enter Menu mode and access Menu 107.2 Set the hang-up time to 125, 250, 500, 750, or 1000ms.BEAT SHIFTSince the transceiver uses a microprocessor to controlvarious transceiver functions, the CPU clock oscillator’sharmonics or image may appear on some spots of thereception frequencies. In this case, we recommend youturn the Beat Shift function ON.1 Enter Menu mode and access Menu 108.2 Set the Beat Shift to ON or OFF.SELECTING AN OUTPUT POWERIt is a good idea to select lower transmit power ifcommunications is still reliable. This lowers the risk ofinterfering with others on the band. When operating frombattery power, you will enjoy more operating time before arecharge is necessary.Press [LOW] to select high (H) (K, E types only), medium(M), or low (L) power.• You can program different power settings for bands A and B.Note: When the transceiver overheats because ofambient high temperature or continuous transmission,the protective circuit may function to lower transmitoutput power.TIME-OUT TIMER (TOT)It is sometimes necessary or desirable to restrict a singletransmission to a specific maximum time. You may usethis function to prevent repeater time-outs when accessingrepeaters, or to conserve battery power.When TOT times out (default is 10 minutes), thetransceiver generates beeps and automatically returns toreceive mode. To resume transmitting, release and thenpress the microphone [PTT] again.1 Enter Menu mode and access Menu 109.2 Set the timer to 3, 5, or 10 minutes.MICROPHONE SENSITIVITYThe input level to the microphone can be configured.1 Enter Menu mode and access Menu 111.2 Set the Microphone Sensitivity to HIGH, MEDIUM orLOW.Note: The higher the input level to the microphone is configured, theeasier to gain the surrounded sounds.