Radio Shack HTX-242 Manually Transmitting Dtmf Tones, Transmitting Dtmf Tones from Memory

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Manually Transmitting DTMF Tones

To transmit DTMF tones, follow the steps for transmitting. Then, while holding down PTT, press the digits on the microphone to transmit the tones.

Note: If auto-reply is turned on, you must hold down PTT while you trans- ! mit. If auto-reply is off, you can release PTT after you enter the first digit.

The HTX-242 transmits for 1 second after you enter the last digit. See “Using Auto-Reply” on Page 34.

Transmitting DTMF Tones from Memory

1.Press DTMF so the HTX-242 displays DTMF and the current DTMF memory number.

2.To select a different DTMF memory, press and hold F for at least 1 second. Then press DTMF.

3.Rotate TUNE or press ▲ or ▼ to select the desired DTMF memory.

4.Press and hold PTT. Then press DTMF to send the current DTMF memory.

Notes:

•If you turn on the DTMF auto send option and turn on DTMF mem- ory (DTMF appears on the display), the HTX-242 sends the DTMF

!sequence in the current memory every time you press PTT. See “Using DTMF Auto Send” on Page 35.

•To store DTMF sequences, see “Storing a DTMF Sequence” on Page 32.

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Contents HTX-242 TWO-METER Mobile Trans Ceiver Introduction FeaturesUsing this Manual Contents Specifications Schematics Using Memory ChannelsUsing Dtmf and Subaudible Tones Using the Menu TroubleshootingUnpacking 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 Connecting an External Speaker Optional Using the HTX-242 with Packet RadioDual VFO Modes Dtmf Touch-Tone FeaturesUnderstanding the HTX-242 Memory Channels Subaudible Tone Ctcss FeaturesRepeater Operation VFO-A-T Understanding the DisplayPage Extending the Transmit Frequency Range Resetting the HTX-242Basic Operation Turning On/Off Your HTX-242Locking the Controls Setting Volume and SquelchUsing the Light Setting the Power LevelDirectly Entering a Frequency Tuning to a FrequencySelecting a Frequency Scanning for a Frequency Setting the Frequency StepStoring Scan Skip Frequencies Setting the Scan OptionsSetting the Scan Resume Condition Setting the Scanning Range Setting the Scan Resume DelayTransmitting Receiving TransmissionsTransmitting Dtmf Tones from Memory Manually Transmitting Dtmf TonesLimiting Transmit Duration Turning the Keytone Beep On and OffReceive Frequency Transmit Offset Frequency Offset DefaultsAdvanced Operation Turning Auto Duplex On and OffOverriding 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 Code Freq. Hz Using Subaudible TonesSetting the Subaudible Tones Valid Subaudible TonesActivating Subaudible Tone Transmit and Squelch Setting the Dtmf Page and Subaudible Tone AlertUsing the Menu OFF Menu Default Explanation/Available Settings OptionProblem Possible Solutions TroubleshootingError Codes Common Problems and SolutionsReplacing the Fuse Receiver SpecificationsGeneral Transmitter Schematics RF Schematic Digital Schematic Microphone Schematic Radio Shack Division of Tandy Corporation Fort Worth, Texas