... Clock Frequency27MHz(13.5MHz)Front panelLED Display4-digit LED to indicate channel Number and statusKeysUp, Down, ... Left, Right, Menu, OK,Power/Standby IR Receiver38KHzRear panelRF OutputRCA,connectorRF ModulatorPAL_BG,11CH. RCA Output4RCA ... Serial PortSIP2.0_4P, outside RS232 converter board for upgrade softwareRCU CategoryIR(Carrier 38KHz) Battery2x1.5V ... Temperature0~40 °C satellite receiver TSR-129