ADI_AR-247_参考电器原理图

5 OPERATION③⑤5-1-1 CONTROL FUNCTIONS9世OLLOW PWRM-V M LOCK8.8.8.8.8.5a80口四d图口O四o0口d0%FYCALL SHFT④①POWER switchDIMPress to turn the transceiver on or off.This function is used to select the intensity of the front panelPress the VFO/MV or MR/M key and switching the power on willdisplay illumination.reset the VFO or MEMORY.Pressing the F key for longer than 1 second and then press the②Tuning controlLOW/DIM key while the F indicator is flashing will turn the time-outThis control is used to select the desired transmit/receivetimer function on and off.frequency,MHz step,memory channel,frequency step,tone6Microphone connectorfrequency,scan direction,etc.Attach the supplied microphone to this connector.The pin out of③VOL controlthe connector is shown in the accompanying illustration.This control is used to adjust the volume from the internal andexternal speaker (if used).Clockwise rotation will increase the③GNDGND (Microphone audio)volume and counterclockwise rotation will decrease the volume.①MIC(Microphone Audio)④SQ(Squelch)control®X Audio Output②PTT(Approx 100 mV/10 k ohm)This control is used to select the desired squelch threshold level.(Push to Talk)⑤Low/DIM keyLOW③DNThis function is used to select the transmit output power level(HI,④UPMID or LOW),③8VDC(Ma×150mA)9