Superstar_4900B_参考电器原理图

SuperStar 4900B 10 Meter Base Radio28405Features:23.815 Mhz to 30.555 Mhz Continuous Coverage (Requires Export Mod)Single Chip Microprocessor Controller(LC72338)Clarifier Control Tracks Both Transmit And Receive(SSB Approx.40Khz)Programmable Memory Function(Stores Favorite Frequencies)Backlit Liquid Crystal Display(Frequency,Channel,Functions Menu)Digital Meter Scale Displays Signal,Power Output,SWR and Modulation (AM only)Dual Watch Mode(Allows Monitoring Two Freq.Simultaneously)Red/Green Transmit/Receive LED IndicatorTwo Antenna Connectors on Rear Panel,Push Button Front Panel Selectable.Noise Blanker/Automatic Noise LimiterRoger Beep(Switch Selectable)Variable Mic Gain ControlVariable Receive RF Gain ControlAM/FM/USB/LSB Operation25 Watts Variable RF Output Power SSB(2SC2166 X1 -2SC1969 X2)10-15 Watts Variable RF Output Power AM (2SC2166 X1 -2SC1969 X2)Four Step Dimmer lamp ControlSplit Frequency Capability for Repeater UseDual Power-120VAC Operation or 13.8 VDC OperationDTMF Page Mode(Touch Tone Paging)DTMF Auto Reply Function(Touch Tone Auto Signaling)DTMF Coded Squelch Operation(Receiver Muted Until Special DTMF Received)DTMF Encoder Pad(Allows Direct DTMF Frequency Entry)for free byRadioAmateur.eu