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TS-890S In-Depth Manual May 17, 2019 CA-337W-E96 Copyright © 2019 All Rights Reserved

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TS-890S In-Depth Manual May 17, 2019 CA-337W-E96 Copyright © 2019 All Rights Reserved COPYRIGHTS FOR THIS MANUAL INDEMNITY • JVC KENWOOD Corporation shall own all copyrights and • JVC KENWOOD Corporation takes all appropriate measures intellectual properties for the product and the manuals, help to ensure all descriptions in this manual to be accurate; texts and relevant documents attached to the product or the however, this manual may still contain typos and expressions optional software. that are misleading. JVC KENWOOD Corporation is entirely • A user is required to obtain approval from JVC KENWOOD free from any responsibilities arising from any losses or Corporation, in writing, prior to redistributing this document on damages caused by such typos or expressions. a personal web page or via packet communication. • JVC KENWOOD Corporation has the right to change or • A user is prohibited from assigning, renting, leasing or reselling improve the product specifications, etc., described in this the document. manual without prior notice. JVC KENWOOD Corporation is entirely free from any responsibilities for any losses or • JVC KENWOOD Corporation does not warrant that quality damages caused by such changes and improvements. and functions described in this manual comply with each user’s purpose of use and, unless specifically described in this • JVC KENWOOD Corporation is entirely free from any manual, JVC KENWOOD Corporation shall be free from any responsibilities for any failures, damages or losses arising responsibility for any defects and indemnities for any damages from, or in connection with, use of the transceiver with or or losses. connected to any external equipment. Failures, damages or losses shall include the failures, damages or losses that may occur at the PC connected to the transceiver or in IMPORTANT NOTICES FOR SOFTWARE storage devices having memory area such as a USB flash drive. JVC KENWOOD Corporation is entirely free from any The software embedded in this transceiver and the optional responsibilities for any secondary failures, damages or losses, application software consist of a multiple number of and including but not limited to the loss or damage of data or data individual software components. Title to and ownership of files stored in these memories. copyrights for each software component is reserved for JVC KENWOOD Corporation and the respective bona fide • JVC KENWOOD Corporation does not warrant that quality holder. and functions described in this manual comply with your purpose of use and, unless specifically described in this This product employs the software component in accordance manual, JVC KENWOOD Corporation shall be free from with the End User License Agreement (hereinafter referred to as any responsibilities for any defects and indemnities for any the “EULA”) stipulated by JVC KENWOOD Corporation and/or damages or losses. Selection and installation of any external the respective bona fide holder. equipment shall be done at your own risk. You are fully Access the URL below for details of the software component responsible for the use and effects of external equipment. stipulated in the “GPL/LGPL”. • JVC KENWOOD Corporation shall be free from any https://www.kenwood.com/gpl/ responsibilities for any incidental losses or damages, such as missing communications or call opportunities caused by a The title to and ownership of copyrights for software that may failure or performance error of the transceiver. be distributed individually are reserved for JVC KENWOOD Corporation. These software shall mean the software which • Well aware in your mind, we cannot answer to any and all can be embedded in KENWOOD product memories for proper technical information associated with method of connection to, operation. Any modifying, reverse engineering, copying, configuration for and operation of an external device and PC reproducing or disclosing on an Internet website of the software beyond our knowledge. is strictly prohibited. A user is required to obtain approval from JVC KENWOOD TREATMENT OF YOUR IMPORTANT DATA Corporation, in writing, prior to redistributing this manual on a personal web page or via packet communication. Furthermore, There is always a risk of losing your important data by a any reselling, assigning or transferring of the software is also transceiver failure, occurrence of an unforeseen contingency, strictly prohibited without embedding the software in KENWOOD erroneous operation or faulty behavior of the transceiver. product memories. The data, such as the operating information, recorded audio, messages, configuration data, and logs, must be backed up as necessary by yourself and stored in an external storage device COPYRIGHTS FOR RECORDED AUDIO such as a USB flash drive. The broadcast content recorded in this transceiver may not be reused, except for personal use, without prior consent of the URL AND CONTACTS OF JVC KENWOOD CORP. rights holder under copyright laws. The latest URL and contacts of JVC KENWOOD Corporation at the time when this manual was written are described in TRADEMARKS this manual. Due to changes of social circumstances or the management environment, the URL and contacts of • KENWOOD is a registered trademark of JVC KENWOOD JVC KENWOOD Corporation may change from time to time. Corporation. • Microsoft®, Windows®, and the Windows® logo are the registered trademarks of Microsoft Corporation in the United States and other countries. • .NET Framework is a registered trademark of Microsoft Corporation in the United States and other countries. • IntelliMouse and IntelliPoint are registered trademarks of Microsoft Corporation in the United States and other countries. • All other product names referenced herein are trademarks or registered trademarks of their respective manufacturers. Marks such as ™ and ® are omitted in the body text. TABLE OF CONTENTS 01 PROLOGUE 06 MPU PERIPHERAL CIRCUIT About the Release of the TS‑890S ................................... 1 MPU Peripherals for Transceiver Control ........................ 28 Features of the TS‑890S .................................................. 2 MPU Peripherals for Application Control ........................ 28 MPU Peripherals for Operation Panel Control ................ 28 02 RECEPTION CIRCUIT 07 DSP Receiver Configuration .................................................... 3 First Mixer ........................................................................ 5 Features of TS‑890S DSP Technologies ........................ 29 Roofing Filters .................................................................. 5 DSPs and Peripheral Hardware ..................................... 29 What is a Roofing Filter? .........................................................5 Signal Processing in the IF Stage .................................. 30 Roofing Filters .........................................................................6 IF‑AGC ..................................................................................30 AGC Circuits .................................................................... 7 AGC Quick Recovery ............................................................31 Analog AGC Circuits ................................................................7 IF Filter ..................................................................................32 Optimization Of Gain Distribution ............................................8 Interference Rejection ...........................................................34 Deflection of the S Meter Needle .............................................8 Reception ...................................................................... 36 Noise Level ..............................................................................9 Demodulation ........................................................................36 RF Gain Adjustment ................................................................9 AF Filter .................................................................................37 AGC Off ...................................................................................9 Audio Peak Filter ...................................................................38 Noise Blankers ............................................................... 10 Noise Reduction ....................................................................39 Features of the NB1 and NB2 ...............................................10 Beat Canceler ........................................................................42 Auxiliary Circuits ............................................................ 11 Signal Processing by Morse Code Decoder ..........................43 Medium Wave Band Sensitivity Risers ..................................11 Transmission .................................................................. 44 Modulation ............................................................................44 03 TRANSMISSION CIRCUIT Microphone Gain Control ......................................................46 Speech Processors ...............................................................46 IF Circuit for Clean and Stable 100 W Output Power ...... 12 Other Functions ............................................................. 48 FET Final Amplifier Circuit ............................................. 12 TX/RX Equalizers ..................................................................48 High‑speed Relay‑controlled Antenna Tuner .................. 13 Voice Guidance .....................................................................48 Linear Amplifier Control ................................................
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