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Last modified 2022-07-17

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Kenwood TS-440S

A picture of Kenwood TS-440S

SPECIFICATIONS

GENERAL
Type:Amateur HF transceiver
Frequency range: TX: 10-160 m + WARC
RX: 0.15-30 MHz
Tuning steps:10 Hz to 1 MHz
Frequency stability:Better than 10 ppm @ -10 to +50C (14 to 122F)
Mode:AM / FM / SSB / CW / FSK
Channels / memory management: 100 regular
RAM storage with lithium battery backup
Repeater shift / offset:No dedicated. Use VFO A/B split instead
Power supply:12-16 VDC
Current drain / power consumption:RX: 1.9 A
TX: Max 20 A
Antenna impedance / connector:50 ohm (20-150 ohm with AT-440) / SO-239
Dimensions (W*H*D):270*96*313 mm (10.6*3.78*12.3")
Weight:6.3 Kg (13.9 lb), without ATU option
Other features:NB. Attenuator. Notch filter.




RECEIVER SECTION
Receiver system: Triple conversion superheterodyne
1st IF: 45.05 MHz
2nd IF: 8.83 MHz
3rd IF: 455 KHz
Sensitivity: AM (10 dB S/N)
0.1-0.15 MHz: 25 uV
0.15-0.5 MHz: 13 uV
0.5-1.6 MHz: 40 uV
1.6-30 MHz: 2.5 uV
FM (12 dB SINAD)
1.6-30 MHz: 0.7 uV
SSB/CW/FSK (10 dB S/N)
0.1-0.15 MHz: 2.5 uV
0.15-0.5 MHz: 1 uV
0.5-1.6 MHz: 4 uV
1.6-30 MHz: 0.25 uV
Selectivity: AM
6 KHz (-6 dB), 18 KHz (-50 dB)
FM
12 KHz (-6 dB), 25 KHz (-50 dB)
SSB/CW/FSK
2.2 KHz (-6 dB), 3.3 KHz (-60 dB)
Image rejection: 0.1-1.6 MHz: 50 dB
1.6-30 MHz: 70 dB
AF output power / speaker:1.5 W at 10% distortion / 8 ohm
External speaker connector:3.5 mm, 4-16 ohm




TRANSMITTER SECTION
RF output power:
AM:50 W
FM:100 W
SSB (PEP):100 W
CW/FSK:100 W
Modulation system: AM: Low level modulation
FM: Reactance modulation
SSB: Balanced modulation
Max FM deviation (Factory set):5 KHz
Spurious emissions:Better than -40 dB
Microphone impedance / connector:500 ohm to 50 Kohm / 8-pin (Metal locking ring connector)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Japan, 1986-19xx (Discontinued)
Additional info:New price 1988 in Sweden: SEK 13100:-
Related documents: User manual (6.8 MB)
Service manual (14.4 MB)
Modifications and fixes:
Reviews:
Options / Accessories:
AT-130
AT-230
AT-250
AT-440
HS-4
HS-5
HS-6
HS-7
IC-10
IF-232C
LF-30A
MB-430
MC-42S
MC-55
MC-60A
MC-80
MC-85
PC-1A
PG-2C
PS-50
PS-430
SM-220
SP-41
SP-50
SP-430
TU-8
VS-1
YK-88C
YK-88CN
YK-88S
YK-88SN
Antenna tuner, 10-180 m
Antenna tuner, 10-160 m
Automatic antenna tuner, 10-160 m
Internal automatic antenna tuner unit, 10-80 m
Communications headphones, 8 ohms
Light-weight open air type communications headphones, 8 ohms
Deluxe very light-weight communications headphones, 12.5 ohms
Micro headphones, 16 ohms
Computer interface IC kit
RS-232C interface adapter
Low pass filter
Mobile mount
Dynamic hand mike with up/down buttons
Mobile microphone with LED display and extra functions
Amplified desk microphone with up/down buttons and switchable impedance
Amplified electret desk microphone with up/down buttons
Amplified high-class electret desk microphone with three outputs
Phone patch
DC power cable
Heavy duty power supply, 13.8 VDC, 20 A
Regulated power supply, 13.8 VDC, 20 A (intermittent)
Station monitor
Compact mobile speaker, 4 ohms
High quality mobile speaker, 8 ohms
External speaker
CTCSS/PL unit
Voice synthesizer unit
CW filter, 500 Hz (IF: 8.8307 MHz)
CW narrow filter, 270 Hz (IF: 8.8307 MHz)
SSB filter, 2.4 KHz (IF: 8.83 MHz)
SSB narrow filter, 1.8 KHz (IF: 8.83 MHz)