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Radio Shack
HTX-242
owner manual
RF Schematic
Models:
HTX-242
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Troubleshooting
Specification
Install
Error messages
Schematics
Frequency Offset Defaults
Setting the Scan Resume Delay
Connecting an Antenna
Resetting the HTX-242
Tuning to a Frequency
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RF SCHEMATIC
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Contents
HTX-242 TWO-METER Mobile Trans Ceiver
Introduction
Features
Using this Manual
Contents
Using Dtmf and Subaudible Tones
Using Memory Channels
Using the Menu Troubleshooting
Specifications Schematics
Installation
Connecting the Microphone
Unpacking the Transceiver
Mounting the HTX-242 in a Vehicle
Connecting an Antenna
Connecting to your Vehicle’s Power
Using the HTX-242 as a Base Station
Connecting an External Speaker Optional
Using the HTX-242 with Packet Radio
Dtmf Touch-Tone Features
Understanding the HTX-242
Dual VFO Modes
Subaudible Tone Ctcss Features
Repeater Operation
Memory Channels
VFO-A-T
Understanding the Display
Page
Basic Operation
Resetting the HTX-242
Turning On/Off Your HTX-242
Extending the Transmit Frequency Range
Using the Light
Setting Volume and Squelch
Setting the Power Level
Locking the Controls
Tuning to a Frequency
Selecting a Frequency
Directly Entering a Frequency
Scanning for a Frequency
Setting the Frequency Step
Setting the Scan Options
Setting the Scan Resume Condition
Storing Scan Skip Frequencies
Setting the Scanning Range
Setting the Scan Resume Delay
Transmitting
Receiving Transmissions
Transmitting Dtmf Tones from Memory
Manually Transmitting Dtmf Tones
Limiting Transmit Duration
Turning the Keytone Beep On and Off
Advanced Operation
Frequency Offset Defaults
Turning Auto Duplex On and Off
Receive Frequency Transmit Offset
Changing the Default Offset
Reversing the Offset
Overriding the Duplex Offset
Using the Dual VFOs for Duplex Operation
Using Memory Channels
Changing Stored Settings
Storing a Frequency
Using Auto Memory Store AMS
Tuning to a Standard Memory Channel
Using the Calling-Frequency Memory
Checking Priority Channel
Scanning Memory Channels
Clearing a Memory Channel
Enabling/Disabling Scanning for Memory Channels
Using Dtmf and Subaudible Tones
Storing a Dtmf Sequence
Transmitting a Dtmf Sequence
Using Dtmf
Using Group Calling
Name Assignment Dtmf Page Sequence
Using Auto-Reply
Using Dtmf Auto Send
Setting the Subaudible Tones
Using Subaudible Tones
Valid Subaudible Tones
Code Freq. Hz
Activating Subaudible Tone Transmit and Squelch
Setting the Dtmf Page and Subaudible Tone Alert
Using the Menu
OFF
Menu Default Explanation/Available Settings Option
Error Codes
Troubleshooting
Common Problems and Solutions
Problem Possible Solutions
Replacing the Fuse
Specifications
General
Receiver
Transmitter
Schematics
RF Schematic
Digital Schematic
Microphone Schematic
Radio Shack Division of Tandy Corporation Fort Worth, Texas
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