Kenwood SM-230 Manual

Also see for SM-230: Instruction manual

4. FRONT AND REAR PANELS4-2. REAR PANELFigure 2@ ANT JackUsed for hook-up of antenna or dummy load, for obser-vation of transmitted waveforms in the monitor mode.TX JackUsed for hook-up of the transceiver’s ANT connector,for observation of transmitted waveforms in the moni-tor mode.@ X IN JackThe input terminal for input of the MARK signal duringobservation of RTTY cross patterns in the X-TUNE mode.Y IN JackThe input terminal for input of the SPACE signal duringobservation of RTTY cross patterns in the X-TUNE mode.@) IF IN JackUsed for input of transceiver IF signals when using thebandscope.ACC 3 JackA terminal which is connected to the TS-950’s SCOPEterminal when using the Dual Watch Marker function inthe bandscope mode.CONTENTSGNDMarker ON/OFFScan width informationN.C.Scan width informationN.C.Marker position voltageGND12345678GND TerminalThe earth terminal. Be sure to connect this with the tran-sceiver GND over the shortest distance possible.