Kenwood TS-870S Memory Scan, Busy Frequency Stop, ALL-CHANNEL Scan, Scan Resume Methods

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10 SCAN

MEMORY SCAN

Memory Scan scans all memory channels containing data (All-channel Scan) or only a group of channels specified by you (Group Scan). This type of scan always ascends up through the channel numbers; the direction of scan cannot be changed. While scanning, if you want to skip over some programmed channels, turn the M.CH/VFO.CH control. Pressing Mic [UP] or [DWN] will also skip over channels but only during All-channel Scan.

All-channel Scan or Group Scan can be selected via Menu No. 66 (GRP.SCAN). The default is All-channel Scan (OFF).

The following are additional important points regarding the Memory Scan function:

¥Starting a transmission by closing the CW key, by sending a packet, or by triggering the VOX circuit by voice or the DRU-3 Digital Recording Unit stops Memory Scan; however, transmission does not begin immediately.

¥Starting the Memory Scan function switches OFF the RIT and XIT functions. RIT and XIT are not switched ON again when Memory Scan stops, and the RIT/XIT offset frequency is not cleared.

¥Attempting to use Memory Scan when no data has been programmed in any memory channels, or when all channels are locked out, causes an alarm. Scan will not start.

¥To scan channel 99, cancel Memory Channel Lockout {page 62} for that channel.

Note: Remember to adjust the squelch threshold level {page 19} before using Memory Scan.

BUSY FREQUENCY STOP

The transceiver automatically stops Memory scanning when a signal is detected if Busy Frequency Stop is ON. The transceiver remains on the same channel for either a short time or until the signal drops depending on which Scan Resume method is selected (see below). The squelch must be adjusted to the noise threshold point with no signals present for Busy Frequency Stop to work.

Toggle Busy Frequency Stop OFF or ON via Menu No. 67 (BSY.STOP). The default is ON.

Note: Busy Frequency Stop cannot be used with Program Scan.

■Scan Resume Methods

Scan Resume controls when the transceiver continues Memory scanning after stopping due to a busy channel. Neither of the following two modes function if Menu No. 67 (BSY.STOP) is switched OFF. These modes cannot be used with Program Scan.

Time-operated mode: After stopping, Scan checks the busy channel approximately three seconds later. If the channel is still busy, Scan waits another three seconds then resumes scanning. If the channel is not busy three seconds after stopping, Scan resumes immediately.

Carrier-operated mode: Scan resumes approximately two seconds after the signal drops.

Select your preferred Scan Resume method via Menu No. 68 (CAR.SCAN). The default is Time-operated (OFF).

ALL-CHANNEL SCAN

The All-channel Scan function scans all memory channels containing frequency data.

1Recall a Conventional memory channel.

2Switch OFF Menu No. 66 (GRP.SCAN).

3Adjust the SQL control while no signal is present.

¥The squelch must be closed before scanning starts.

4Press [SCAN] to start scanning.

5To stop scanning, press [SCAN], or [CLR], or [SEND], or Mic [PTT].

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Contents TS-870S Writing Conventions Followed Applicable ModelKEY2 Cleaning Power SourcesPower Cable Protection Power LinesContents Rejecting Interference Memory FeaturesScan Specifications Appendices MaintenanceOptional Accessories Installing OptionsIntroduction DSP Maximum SIGNAL/ Minimum NoiseFeatures Supplied AccessoriesAntenna Connection InstallationTransmission Line MHz 14 MHz 30 MHz Lightning Protection DC Power Supply ConnectionInstallation Ground ConnectionFront Panel Accessory ConnectionsRear Panel Pin Function Computer Interface COMRtty Equipment Rtty and ACC Linear Amplifier RemoteAntenna Tuner AT Accessory Equipment ACCSM-230 Station Monitor if OUT PKD Pin No. Pin NameANO GND PSQ Smet PKSYour First QSO First QSO Getting Acquainted Front Panel@4QUICK Memo M.IN button 6KEY Speed control@5QUICK Memo MR button CW/ÐR button @7Tuning controlEnter button LSB/USB button#6FILTER LO/WIDTH and HI/SHIFT controls #3BEAT Cancel buttonRX M.CH button #5TX EQ. buttonUP/DWN buttons Microphone$4RIT/XIT control $7M.CH/VFO.CH controlRear Panel 2MONI Display0AUTO 1PROC9TONE 5MENU7SPLIT 8RIT#7M.SCR #2ON AIR#3AT Tune #4FSKOperating Basics Switching Power ON/OFFAdjusting Volume Adjusting SquelchOperating Basics Equalizing VFO Frequencies A=B Selecting ModeChanging Bands Changing Step Sizes Fine TuningQuick Changes Operating BasicsOperating Basics Direct Frequency Entry Front Panel MeterMeter on Microphone Gain Selecting Transmit PowerTransmitting Transmit Carrier LevelTemporary Menu Resetting Menu SetupWhat is a MENU? Menu AccessLO/WIDTH and HI/SHIFT controls Menu ConfigurationMenu Setup Menu Item Function Selections DefaultM.CH/VFO.CH control Setting Baud Rate bps Stop Bits Cross Reference for Menu Functions Sstv Frequencies CommunicatingSSB Transmission Slow Scan TV/ FacsimileTX SIDETONE/ RX Pitch Frequency Switching TX/RX ManuallyCW Transmission CommunicatingCW Reverse Receive Setting Delay TimeCommunicating Semi BREAK-IN Full BREAK-INKEY Speed control Function DefaultCommunicating Electronic Keyer Activity ConsultEmulation Options Multiple-Button FunctionsCW Message Playback Storing CW MessagesTo check an Inquiry function Press CH 3+CH Inquiry Command DescriptionErasing CW Messages Inquiry FunctionsPress CH 1+CH Function CommandsSerial Number Options Embedded FunctionsOption d Leading Other Nines Press RX a or RX B FM TransmissionFM Repeater Operation Press RX B or RX aContinuous or Burst Subtones? Selecting Subtone FrequencyArrl 10-METER Band Plan Digital Operation AM TransmissionRtty Frequency Shift Keying Amtor ERROR-CHECKING Modes AMTOR/ PACKET/ PACTOR/ G-TOR/ CloverMode Meaning Rtty FrequenciesPacket Frequencies SPLIT-FREQUENCY OperationSatellite Operation Communicating TF-SET Transmit Frequency SETAGC Automatic Gain Control RIT Receive Incremental TuningOperating Aids ReceivingTransmit Inhibit XIT Transmit Incremental TuningOperating Aids VOX VOICE-OPERATED TransmitTransmit Monitor Mode Transmit Sampling PointOperating Aids Speech Processor SSB/AM Changing Frequency While TransmittingMicrophone AGC Changing Transmit BandwidthTransmit Bandshift Equalizing Transmit AudioPress MENU+ Automatic ModeAutomatic Mode Boundaries Using Automatic ModeInternal Tuner Presetting Internal Tuner onlyPreset Bands for Internal Tuner Automatic Antenna TunerCommunication Parameters Operating Aids AT-300 External Tuner OptionalMenu No Baud Rate Stop Bits If Shift CW Slope Tuning SSB/AMRejecting Interference DSP ToolsAdaptive Filters Beat Cancel SSB/AMRejecting Interference Auto Notch SSB CW/FSK/FMAttenuator Setting Spac TimeNoise Blanker AIP Advanced Intercept PointMemory Channel Data Memory FeaturesConventional or Quick MEMORY? Conventional MemoryQuick Channel Search Memory FeaturesMemory Channel Recall Split-Frequency ChannelsMemory \ VFO Transfers Memory TransferMemory Channel Scroll Temporary Frequency ChangesChannel Full ResetErasing Memory Channels Channel to Channel TransfersProgrammable VFO Function Memory Features Storing Scan Limits in CHTemporary Frequency Changes Quick MemoryStoring Into Quick Memory Recalling from Quick MemoryConfirming START/END Limits ScanProgram Scan Scan HoldALL-CHANNEL Scan Memory ScanScan Busy Frequency StopMemory Channel Lockout Setting Scan SpeedProgrammable Function Buttons Microprocessor ResetSwitching ANT 1/ ANT Operator ConveniencesOperator Conveniences Assigning Functions Beep FunctionQuick Data Transfer Alarm NotificationSetting UP Display DimmerTransferring Data Using Quick TransferOperator Conveniences ConnectionsChecking Messages DRU-3 Digital Recording System OptionalRecording Messages Message PlaybackTransmitting Messages Manual TX/RX VS-2 Voice Synthesizer OptionalContinuous MULTI-CHANNEL Playback Altering INTER-MESSAGE IntervalCleaning MaintenanceService Service NoteMaintenance Internal AdjustmentsReference Frequency Calibration Problem Symptom Probable Cause Corrective Action TroubleshootingPress LSB/USB, CW/-R,FSK/-R, or SWR PG-2Z Optional AccessoriesDRU-3 PC-1ADRU-3 Digital Recording Unit Installing OptionsRemoving the Case VS-2 Voice Synthesizer UnitSO-2 TEMPERATURE-COMPENSATED Crystal Oscillator Tcxo Installing OptionsFSK, FM SpecificationsFSK, AM SpecificationsAppendix a Learning about DSP HF Beacons Appendix B PropagationInformation NCDXF/IARU Beacon NetworkFreq kHz Call Sign Receiver for Swling Appendix C General CoverageHardware Description Appendix D COM Connector ProtocolCommands Command DescriptionParameter Description BAD Command ExamplesParameter Table Subtone Table for Format NO.14 Computer Control CommandsTypes of Commands TerminatorCommand USE Precautions Error MessagesParameter Menu Selection Table for EX COMMAND, ParameterMenu Menu Item Command Tables Reading Command TablesBusy ID Identification Set Mixer RA RF Attenuator XIT DSP DRSTOR Rtty SSB Sstv AGCSstv FSK TOR
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TS-870S specifications

The Kenwood TS-870S is a distinguished transceiver that stands out in the world of amateur radio, particularly for enthusiasts who seek a blend of advanced technology and user-friendly features. Introduced in the early 1990s, this HF transceiver quickly gained a reputation for its exceptional performance, versatility, and reliability, making it a favorite among operators worldwide.

One of the most noteworthy features of the TS-870S is its direct-sampling technology, which allows for superior signal fidelity and processing. This technology enables the transceiver to operate across a range of 160 meters to 10 meters, catering to both casual and serious operators. Its high-performance 16-bit digital signal processing (DSP) facilitates effective noise reduction and filtering capabilities, enhancing the overall clarity during transmission and reception.

In terms of power, the TS-870S boasts an output of 100 watts, providing ample power for various communication needs. The transceiver is equipped with an automatic antenna tuner, which simplifies the task of matching the antenna to the operating frequency, ensuring optimal performance without the hassle of manual adjustments.

Another significant aspect of the Kenwood TS-870S is its user interface, featuring a large, easy-to-read display, and a logically arranged control layout. This makes it accessible for both novice and experienced operators. The built-in memories allow for quick storage and access to favorite frequencies and settings, enhancing operational efficiency.

The Kenwood TS-870S also includes various advanced features such as an optional 2.4 kHz and 6 kHz roofing filter which provides improved performance in crowded band conditions. The receiver's dual VFOs (Variable Frequency Oscillators) enable simultaneous monitoring of two frequencies, which is particularly useful for operators who need to keep track of multiple signals or engage in cross-band communication.

Apart from its technical specifications, the TS-870S is constructed with durability in mind, ensuring that it can withstand the rigors of frequent use. It supports various operating modes, including SSB, CW, AM, and FM, making it a versatile choice for diverse amateur radio activities.

In conclusion, the Kenwood TS-870S combines advanced technology with user-friendly characteristics, offering amateur radio operators an exceptional tool for communication. With its innovative features, robust performance, and flexibility, it continues to be a respected choice among radio enthusiasts, solidifying its legacy in the realm of amateur radio.
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