Radio Shack HTX-242 owner manual Using Auto Memory Store AMS

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7.Press . The HTX-242 displays rC and the current receive subaudible tone.

8.Rotate TUNE, or press UP or DOWN on the microphone, to change the receive subaudible tone.

9.Press . The HTX-242 displays tC and the current transmit subaudible tone.

10.Rotate TUNE, or press UP or DOWN on the microphone, to change the transmit subaudible tone.

11.For the calling-frequency memory, press CALL to save all settings.

For a standard memory, press . The HTX-242 displays Sn. Rotate TUNE, or press UP or DOWN on the microphone, to select whether the memory is included in a memory scan (On) or locked out of a memory scan (Off). Then press MR to save all settings.

Using Auto Memory Store (AMS)

Follow these steps to have the HTX-242 scan through a selected range and store active frequencies in memory.

1.Set the upper and lower scan limits (see “Setting the Scan- ning Range” on Page 21).

2.Set the scanning step (see “Setting the Frequency Step” on Page 19).

3.Set the squelch (see “Setting Volume and Squelch” on Page 17).

4.Hold F for at least 1 second. Then press MHz.

The HTX-242 scans between the lower and upper scan lim- its. When it detects a transmission, it checks all memories to see if that frequency is already stored. If the frequency is not in a memory, the HTX-242 stores the frequency in the lowest unused memory, then resumes scanning. The HTX-242 con- tinues auto store until all memories are used.

5.To stop auto store before all memories are used, press VFO,

DUP, MR, CALL, or MHz.

!

Notes:

The HTX-242 turns off tone squelch during auto store.

 

Auto store does not work if all memories are used.

 

 

 

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Contents HTX-242 TWO-METER Mobile Trans Ceiver Introduction FeaturesUsing this Manual Contents Using Dtmf and Subaudible Tones Using Memory ChannelsUsing the Menu Troubleshooting 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 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 Basic Operation Resetting the HTX-242Turning On/Off Your HTX-242 Extending the Transmit Frequency RangeUsing the Light Setting Volume and SquelchSetting the Power Level Locking the ControlsDirectly 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 OffAdvanced Operation Frequency Offset DefaultsTurning Auto Duplex On and Off 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 Setting the Subaudible Tones Using Subaudible TonesValid Subaudible Tones Code Freq. HzActivating Subaudible Tone Transmit and Squelch Setting the Dtmf Page and Subaudible Tone AlertUsing the Menu OFF Menu Default Explanation/Available Settings OptionError Codes TroubleshootingCommon Problems and Solutions Problem Possible SolutionsReplacing the Fuse Receiver SpecificationsGeneral Transmitter Schematics RF Schematic Digital Schematic Microphone Schematic Radio Shack Division of Tandy Corporation Fort Worth, Texas