Schematics | Radio Shack HTX-242 guide

SCHEMATICS

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Radio Shack HTX-242 owner manual Schematics

Contents

HTX-242 TWO-METER Mobile Trans Ceiver Features Introduction Using this Manual Contents Using Memory Channels Using Dtmf and Subaudible TonesUsing the Menu Troubleshooting Specifications Schematics Unpacking the Transceiver InstallationConnecting the Microphone Mounting the HTX-242 in a Vehicle Connecting an Antenna Connecting to your Vehicle’s Power Using the HTX-242 as a Base Station Using the HTX-242 with Packet Radio Connecting an External Speaker Optional Dual VFO Modes Dtmf Touch-Tone FeaturesUnderstanding the HTX-242 Memory Channels Subaudible Tone Ctcss FeaturesRepeater Operation Understanding the Display VFO-A-TPage Resetting the HTX-242 Basic OperationTurning On/Off Your HTX-242 Extending the Transmit Frequency Range Setting Volume and Squelch Using the LightSetting the Power Level Locking the Controls Directly Entering a Frequency Tuning to a FrequencySelecting a Frequency Setting the Frequency Step Scanning for a Frequency Storing Scan Skip Frequencies Setting the Scan OptionsSetting the Scan Resume Condition Setting the Scan Resume Delay Setting the Scanning Range Receiving Transmissions Transmitting Manually Transmitting Dtmf Tones Transmitting Dtmf Tones from Memory Turning the Keytone Beep On and Off Limiting Transmit Duration Frequency Offset Defaults Advanced OperationTurning Auto Duplex On and Off Receive Frequency Transmit Offset Overriding the Duplex Offset Changing the Default OffsetReversing the Offset Using the Dual VFOs for Duplex Operation Storing a Frequency Using Memory ChannelsChanging Stored Settings Using Auto Memory Store AMS Checking Priority Channel Tuning to a Standard Memory ChannelUsing the Calling-Frequency Memory Enabling/Disabling Scanning for Memory Channels Scanning Memory ChannelsClearing a Memory Channel Transmitting a Dtmf Sequence Using Dtmf and Subaudible TonesStoring a Dtmf Sequence Name Assignment Dtmf Page Sequence Using DtmfUsing Group Calling Using Auto-Reply Using Dtmf Auto Send Using Subaudible Tones Setting the Subaudible TonesValid Subaudible Tones Code Freq. Hz Setting the Dtmf Page and Subaudible Tone Alert Activating Subaudible Tone Transmit and Squelch Using the Menu Menu Default Explanation/Available Settings Option OFF Troubleshooting Error CodesCommon Problems and Solutions Problem Possible Solutions Replacing the Fuse Receiver SpecificationsGeneral Transmitter Schematics RF Schematic Digital Schematic Microphone Schematic Radio Shack Division of Tandy Corporation Fort Worth, Texas