Kenwood TS-590S manual 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

2.1Kenwood Traditional Transmitting

Circuitry		11
2.1.1	IF Circuits	11
2.1.2	FET Final Circuit	11

2.2High-speedRelay-controlled

		Antenna Tuner	13
	2.3	REMOTE Connector	13
	2.4	DRV Terminal	15
3	LOCAL OSCILLATOR		19
4	DSP		20

4.1Multipurpose 32-bit Floating Point

DSP 20

4.2Advanced AGC Control via IF Digital

Processing 21

4.3Interference Elimination Within AGC

Loop		23
4.3.1	Digital IF Filter	23
4.3.2	Types of Digital IF Filters	24

4.3.3Manual 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

4.6.2Noise Blanker NB2

	(IF Processing)	30
4.6.3	Overview of Noise Reduction	31

4.6.4NR1 (Spectral Subtraction Method)

(AF Processing) 32

4.6.5NR1 (Based on a Line Enhancer)

	(AF Processing)	34
4.6.6	NR2 (AF Processing)	35

4.7DSP-based Auxiliary Circuits

(for TX) 36

4.7.1Speech Processor

(AF Processing) 36

4.8DSP-based Auxiliary Circuits

(Common to TX/RX) 37

4.8.1 TX Equalizer & RX Equalizer
(AF Processing)	37
5 SOFTWARE: ENHANCING
OPERATING PLEASURE	38

5.1Extended Data-mode Related

Functions	38
5.2 Drive Out	39

5.3Single Button Toggles IF Filters

between A and B 40

5.4Double Function Keys and Hold Time

Selection 41

5.5Mode Selection of Built-in Electronic

Keyer 41

5.6Switchover 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

6APPEARANCE 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

8.2.1Controlling TS-590S from a PC using

the COM Connector 52

TS-590S I