Radio Shack HTX-242 owner manual Understanding the Display, Vfo-A-T

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Understanding the Display

One or more of the following indicators appear when you turn on and use your HTX-242.

VFO-Aor VFO-B— appears when you select one of the VFO modes. See “Dual VFO Modes” on Page 12.

VFO-A-T

VFO-B— appears when you select the DUP-A mode (transmit on VFO-A and receive on VFO-B). See “Using the Dual VFOs for Duplex Operation” on Page 27.

VFO-A

VFO-B-T— appears when you select the DUP-B mode (receive on VFO-A and transmit on VFO-B). See “Using the Dual VFOs for Duplex Operation” on Page 27.

BUSY — appears when the HTX-242 is receiving a transmission. See “Receiving Transmissions” on Page 22.

FUNC — appears after you press F. Flashes after you hold F for at least 1 second.

LOCK — appears when you lock the HTX-242’s functions. See “Locking the Controls” on Page 17.

T — appears when transmit subaudible tone is turned on. See “Using Subaudible Tones” on Page 36.

T-SQL— appears when both transmit subaudible tone and sub- audible tone squelch are turned on. See “Using Subaudible Tones” on Page 36.

ALT — appears when you turn on the DTMF page/subaudible tone alert. See “Setting the DTMF Page and Subaudible Tone Alert” on Page 37.

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Contents HTX-242 TWO-METER Mobile Trans Ceiver Features IntroductionUsing this Manual Contents Using the Menu Troubleshooting Using Memory ChannelsUsing Dtmf and Subaudible Tones Specifications SchematicsUnpacking 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 OptionalDual VFO Modes Dtmf Touch-Tone FeaturesUnderstanding the HTX-242 Memory Channels Subaudible Tone Ctcss FeaturesRepeater Operation Understanding the Display VFO-A-TPage Turning On/Off Your HTX-242 Resetting the HTX-242Basic Operation Extending the Transmit Frequency RangeSetting the Power Level Setting Volume and SquelchUsing the Light Locking the ControlsDirectly Entering a Frequency Tuning to a FrequencySelecting a Frequency Setting the Frequency Step Scanning for a FrequencyStoring Scan Skip Frequencies Setting the Scan OptionsSetting the Scan Resume Condition Setting the Scan Resume Delay Setting the Scanning RangeReceiving Transmissions TransmittingManually Transmitting Dtmf Tones Transmitting Dtmf Tones from MemoryTurning the Keytone Beep On and Off Limiting Transmit DurationTurning Auto Duplex On and Off Frequency Offset DefaultsAdvanced Operation Receive Frequency Transmit OffsetOverriding 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 Valid Subaudible Tones Using Subaudible TonesSetting the Subaudible Tones Code Freq. HzSetting the Dtmf Page and Subaudible Tone Alert Activating Subaudible Tone Transmit and SquelchUsing the Menu Menu Default Explanation/Available Settings Option OFFCommon Problems and Solutions TroubleshootingError Codes Problem Possible SolutionsReplacing the Fuse Receiver SpecificationsGeneral Transmitter Schematics RF Schematic Digital Schematic Microphone Schematic Radio Shack Division of Tandy Corporation Fort Worth, Texas