Kenwood TS-590S CONTENTS

TS-590S I

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........................ 42

5.10 PF Keys ........................................... 42

5.11 Expansion of Voice Guide Function

(Optional VGS-1 Required).............. 44

5.12 Easy Updating of Firmware.............. 45

6 APPEARANCE DESIGN:

“DESIGN CONCEPT” REVEALED

BY DESIGNING ENGINEER...........46

7 STRUCTURAL FEATURES............47

7.1 Cooling............................................. 47

7.2 LCD.................................................. 50

7.3 Main Control Knob ........................... 51

8 EXPANSIVE APPLICATION

SOFTWARE....................................52

8.1 Windows Related Software.............. 52

8.2 System Configurations..................... 52

8.2.1 Controlling TS-590S from a PC using

the COM Connector..........................52