SL60 Comm Radio Features760 Communication ChannelsFrequency Range: 118 to 136.975 MHzWeather Channels: Receive onlyActive and Standby Flip/Flop FrequenciesVolume Control32-Character High-Intensity Alphanumeric LED DisplayTransmit Status IndicatorBacklit Keypad ControlsAutomatic Display Intensity Control2x10 Frequency Memory and RecallStores/Recalls Ten User-Defined FrequenciesStores/Recalls Previous Ten FrequenciesFrequency Monitor Function (listens to standby whilemonitoring the active)Squelch Test FunctionStuck Mic Time-Out - 35 secondsSL60 Comm Radio PerformanceTransmit Power: 8 watts Carrier Power (35 watts Input Power)Input Voltage Range: 10 to 40 VDCOperating Temperature Range: -20° to +55° CCertified TSO C37d (transmitting)Certified TSO C38d (receiving)Certified TSO C128 (microphone)Physical SpecificationsHeight: 1.3 inchesWidth: 6.25 inchesDepth: 11.45 inchesWeight:SL50: 2.3 poundsSL60: 2.8 poundsInterfacesExternal:CDI Left/RightTO/FROM FlagNav Valid FlagNav SuperflagThree External AnnunciatorsRS-232 Bi-Directional Serial PortsOptional External:Flip/Flop SwitchOBS/Hold7Apollo SL50/60 Features