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About Copyright Copyright of this Manual and Software All copyrights and other intellectual property rights for this in-depth manual and relevant technical documents as well as the software described in this in-depth manual and relevant technical documents, and help texts and manuals attached to the software are owned by Kenwood Corporation. A right to use the software described in this in-depth manual and relevant technical documents, and help texts and manuals attached to the software is granted to a licensee by Kenwood Corporation; however, the title to and ownership for the software shall be owned by Kenwood Corporation. Refer to this in-depth manual and relevant technical documents, and help texts and manuals attached to the software for details. Kenwood Corporation does not warrant that quality and performance of the software described in this in-depth manual and relevant technical documents, and help texts and manuals attached to the software conform to the applicability of any use, and Kenwood Corporation shall be free from liability for any defects, damage or loss, or from any warranty for anything other than what is expressly described in this in-depth manual and relevant technical documents, and help texts and manuals attached to the software. Any distribution, resale, lease, waiver, assignment or disclosure on a website of all in-depth manual and relevant technical documents, and help texts and manuals attached to the software written and made by Kenwood Corporation. About Trademarks and Intellectual Properties • Microsoft, Windows®XP, Windows Vista®, Windows®7 and Windows logo are registered trademarks of Microsoft Corporation. • All other product names referenced herein are trademarks or registered trademarks of their respective manufacturers. ™ and ® are omitted in this manual. Other Restrictions The measured values exampled in this document are examples and do not guarantee the performance of the model. Cover 2 TS-590S CONTENTS CONTENTS 1 RECEPTION ..................................... 1 1.1 Type of Conversion............................1 1.2 Down Conversion...............................3 1.3 Up Conversion....................................8 1.4 RX Auxiliary Circuits...........................9 2 TRANSMISSION............................. 11 2.1 Kenwood Traditional Transmitting Circuitry ............................................11 2.1.1 IF Circuits .........................................11 2.1.2 FET Final Circuit...............................11 2.2 High-speed Relay-controlled Antenna Tuner..................................13 2.3 REMOTE Connector ........................13 2.4 DRV Terminal...................................15 3 LOCAL OSCILLATOR ................... 19 4 DSP................................................. 20 4.1 Multipurpose 32-bit Floating Point DSP..................................................20 4.2 Advanced AGC Control via IF Digital Processing........................................21 4.3 Interference Elimination Within AGC Loop .................................................23 4.3.1 Digital IF Filter ..................................23 4.3.2 Types of Digital IF Filters..................24 4.3.3 Manual Notch Filter and Auto Notch Filter..................................................25 4.3.4 Digital Noise Blanker (NB2)..............26 4.4 Demodulation...................................27 4.5 Modulation........................................28 4.6 DSP-based Auxiliary Circuits (for RX).............................................29 4.6.1 Beat Cancel (AF Processing) ...........29 4.6.2 Noise Blanker NB2 (IF Processing) .................................30 4.6.3 Overview of Noise Reduction ...........31 4.6.4 NR1 (Spectral Subtraction Method) (AF Processing)................................32 4.6.5 NR1 (Based on a Line Enhancer) (AF Processing)................................34 4.6.6 NR2 (AF Processing)........................35 4.7 DSP-based Auxiliary Circuits (for TX).............................................36 4.7.1 Speech Processor (AF Processing)................................36 4.8 DSP-based Auxiliary Circuits (Common to TX/RX) ........................ 37 4.8.1 TX Equalizer & RX Equalizer (AF Processing)................................37 5 SOFTWARE: ENHANCING OPERATING PLEASURE...............38 5.1 Extended Data-mode Related Functions ......................................... 38 5.2 Drive Out..........................................39 5.3 Single Button Toggles IF Filters between A and B.............................. 40 5.4 Double Function Keys and Hold Time Selection .......................................... 41 5.5 Mode Selection of Built-in Electronic Keyer................................................ 41 5.6 Switchover of Shift Frequency Interlocked with Change of Pitch Frequency ........................................ 41 5.7 Power-on Message .......................... 41 5.8 Quick Memory Function ................... 42 5.9 Cross Tone Function.....