Kenwood TS-870S Introduction, Thank YOU, DSP Maximum SIGNAL/ Minimum Noise, Features

Page 7

INTRODUCTION

THANK YOU!

The TS-870SIntelligent Digital Enhanced Communications System was developed by a team of engineers determined to continue the tradition of excellence and innovation in KENWOOD HF transceivers.

Taking maximum advantage of Digital Signal Processing technology, the TS-870S introduces operating tools like Auto Notch, Beat Cancel, and Noise Reducer. When coupled with its IF Shift, Noise Blanker, and Advanced Intercept Point functions, you will enjoy a critical edge as you fight QRM and QRN in the new solar cycle. In addition, the convenience of a built-in RS-232C connector can transport your shack into the world of remote transceiver control via computer.

But first, tame your ego and enthusiasm temporarily Ñ read every page of this book. Consider this manual to be a personal tutorial from the designers; allow it to guide you through the learning process now, then act as a reference in the coming years. Though user friendly, the TS-870S is technically sophisticated and some features may be new to you. Your reward for your diligence will be mastery of the TS-870S in the shortest time possible with maximum fun.

As you continue exploring Amateur radio, thank you for allowing the KENWOOD family to join you in this chapter of your adventure.

DSP —

MAXIMUM SIGNAL/ MINIMUM NOISE

The TS-870S design includes a 2-channel Sigma-delta A/D converter, two 2-channel Sigma-delta D/A converters, and a 2-channel advanced single-bit D/A converter. Operating at a clock rate of 40 MHz, DSP works for you whether you use SSB, CW, FM, or any other mode. The adaptive filter functions include Auto Notch, Line Enhance, and Beat Cancel.

DSP is the most effective way of using current technology to separate what you want from what you donÕt want. While receiving, you hear the most signal and the least noise. While transmitting, you emit only the desired audio components of the modulation without adding distortion. The transmit equalizer combines high boost, bass boost, and comb filter functions to further improve your signal.

With DSP, you will hear clear receive signals that are covered by noise on conventional equipment. The enhancement of the receive signal is due to the reduction of atmospheric and white noise, and to rejection of adjacent frequency interference including

FEATURES

¥Employs Digital Signal Processing (DSP) techniques to significantly improve the quality of received and transmitted signals.

¥Includes extensive user-adjustable digital and analog filtering functions for combating all forms of received interference.

¥Allows total customization of transmitted audio through use of functions such as Transmit Equalizer.

¥Introduces a built-in RS-232C port for directly interfacing to a computer. Supports computer control of functions at a user-selectable transfer rate between 1200 and 57600 bps inclusive.

¥Streamlines function setup by presenting an intuitive Menu System for function configuration and control.

¥Conveniently allows ANTENNA1/ANTENNA2 selection from the Front Panel.

¥Directly addresses CW operatorsÕ interests by including a full-function K-1 Logikey complete with test mode, semi-automatic mode, and popular keyer emulations. The Rear Panel is equipped with a PADDLE jack and a KEY jack for connecting a paddle, an external keyer, or a keyboard.

¥Provides an antenna tuner that can easily be inserted into or removed from the transmit and receive paths.

SUPPLIED ACCESSORIES

Accessory

Part Number

Quantity

Microphone

T91-0352-XX

1

 

 

 

DC power cable

E30-3157-XX

1

7-pin DIN plug

E07-0751-XX

1

13-pin DIN plug

E07-1351-XX

1

Fuse (25 A)

F05-2531-XX

1

Fuse (4 A)

F06-4029-XX

1

Spacer

J02-0479-XX

2

Screw

N91-3016-XX

2

Instruction manual

B62-1536-XX

1

Schematic/block diagrams1

B52-0606-XX

1

Warranty card

Ñ

1

(U.S.A., Canada, and

Europe only)

 

 

1France, Holland: B52-0607-XX

heterodynes. This capability of DSP to Òclean upÓ the environment surrounding the desired signal has a significant effect. The signal you are trying to receive will seem stronger and clearer even though the S-meter reads the same. Those tired of listening to interference of all kinds while operating may think a little magic is being used.

You can effectively lengthen the front feet of the TS-870S. Remove the screws that fasten the front feet to the transceiver. As shown, install the supplied spacers and the front feet by using the supplied screws. The removed screws are not required, but save them in case you decide to remove the spacers in future.

These sides must face the TS-870S case.

Supplied spacer

Supplied screw

1

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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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