Alinco_DJ-C1_DJ-C4_频率调制校准手册

ADJUSTMENTDJ-C1T/C1E1)SettingsPower supply voltage 4.0V DCItemProcedureSet to1.Reference voltageTune in 144.95 MHz and set P/D voltage1.7±0.1Vto 1.7 V.(VCO case attached)Adjust L2142.ReferenceTransmit on 145.05 MHz and set reference 145.05 MHz +0.5 Hzfrequencyfrequency to 145.05 MHz.Adjust TC2023.Transmission powerTransmit on 145.05 MHz and set300mW±20mWtransmission power to 300 mW.Adjust VR2014.MIC modulationTransmit on 145.05 MHz and input a4.5±0.1kHzdeviation1 kHz-50 mV low-frequency signal tothe MIC input pin.Then,set modulation to4.5 kHz.Adjust VR2022)ChecksItemRequirementFactory-clearance1.Transmission145.05MHz±200Hz±500Hzfrequency2.TransmissionOn 145.05 MHz transmission frequencypower300mW±30mWSame as on left3.ModulationOn 145.05 MHz transmission frequencyDeviation.With 1 kHz -50 mV AF signal4.5kHz±0.2kHzSame as on leftWith 67/250.4 Hz tone frequency0.4-1.2kHzSame as on leftWith 1750 Hz tone burst(E/EA specification only)2.4-3.6kHzSame as on left23