TS-440S

Name: Kenwood TS-440S transceiver
Brand: Kenwood
SKU: TS-440S
Price: 298.00 EUR
Availability: OnlineOnly

Specifications

Prices

HF all-mode transceiver with up to 100 Watts output power and 102 dB dynamic range. Continuous tuning general coverage receiver with a range of 100 kHz to 30 MHz. The IF bandswitch allows you to tailor the receiver bandwidth to the operating conditions. Transmission at a 100% duty cycle is possible for relatively long durations in any mode, including FM and AFSK. Full break-in operation is possible in the CW mode, rapid transmit/receive switching also makes the radio suitable for data communications. The optional built-in automatic antenna tuner (TS-440SAT) will operate from 3.5 to 28 MHz. 100-channel memory stores the frequency, band, and mode. Front panel control of the Tuning dial torque is provided. Ideated in Japan, year of introduction 1985.

Reference market : amateur-radio

TS-440S specifications

General

Frequency coverage
Receive	0.1000 ~ 30.0000 MHz
Transmit	1.8000 ~ 2.0000 MHz 3.5000 ~ 4.0000 MHz 7.0000 ~ 7.3000 MHz 10.1000 ~ 10.1500 MHz 14.0000 ~ 14.3500 MHz 18.0680 ~ 18.1680 MHz 21.0000 ~ 21.4500 MHz 24.8900 ~ 24.9900 MHz 28.0000 ~ 29.7000 MHz
Mode
CW / FSK (RTTY) / LSB / USB / AM / FM
Tuning step
10 / 100 Hz 1 MHz (UP/DOWN switches)

Receiver

Sensitivity
SSB / CW / FSK	<2.5 uV (0.1~0.15 MHz, 10dB S/N) <1.0 uV (0.15~0.5 MHz, 10dB S/N) <4.0 uV (0.5~1.6 MHz, 10dB S/N) <0.25 uV (1.6~30 MHz, 10dB S/N)
AM	<25 uV (0.1~0.15 MHz, 10dB S/N) <13 uV (0.15~0.5 MHz, 10dB S/N) <40 uV (0.5~1.6 MHz, 10dB S/N) <2.5 uV (1.6~30 MHz, 10dB S/N)
FM	<0.7 uV (1.6~30 MHz, 12dB SINAD)
Selectivity
CW [1]	270 Hz (-6dB) 1100 Hz (-60dB)
CW [2]	500 Hz (-6dB) 1500 Hz (-60dB)
SSB [3]	1.8 kHz (-6dB) 3.3 kHz (-60dB)
SSB [4]	2.4 kHz (-6dB) 4.2 kHz (-60dB)
CW / FSK / SSB	2.2 kHz (-6dB) 4.4 kHz (-60dB)
AM	6 kHz (-6dB) 18 kHz (-50dB)
FM	12 kHz (-6dB) 25 kHz (-50dB)
IF filter ultimate attenuation
>80 dB [5]
RF attenuator
20 dB
DR (Dynamic Range)
102 dB (BW 500 Hz)
Image rejection
>50 dB (0.1~1.6 MHz) >70 dB (1.6~30 MHz)
IF rejection
>50 dB (0.1~1.6 MHz) >70 dB (1.6~30 MHz)
IF-shift range
±1 kHz
Notch filter
Manual	>20 dB
NB (Noise Blanker)
Yes
RIT (Receiver Incremental Tuning)
±1.2 KHz
AGC (Automatic Gain Control)
Fast, Slow
Frequency stability
±10ppm max with temperature from -10°C to +50°C
Frequency accuracy
±10ppm max
IF (Intermediate Frequency)
1°	45.050 MHz
2°	8.830 MHz
3°	455 kHz
Squelch sensitivity
CW / FSK / SSB / AM	<20 uV (0.1~0.15 MHz) <10 uV (0.15~0.5 MHz) <20 uV (0.5~1.6 MHz) <2 uV (1.6~30 MHz
FM	<0.32 uV (1.6~30 MHz)

Transmitter

Output power
SSB / CW / FSK / FM	~100 W max (200W DC input power)
AM	~50 W max (110W DC input power)
Spurious emission
<-40 dBc
Carrier suppression (SSB)
>40 dB
Unwanted sideband suppression (SSB)
>40 dB (1500Hz tone)
Intermodulation products (SSB)
<-26 dBc (2-tones IM3)
Maximum deviation (FM)
±5 kHz
Audio response
400~2600 Hz (-6 dB)
Microphone
500~50kΩ
XIT (Transmitter Incremental Tuning)
±1.2 KHz
CW features
Break-in with VOX DELAY control
Antenna tuner [6]
Impedance range	20 ~ 150Ω

Features

Memory
90 regular memories, 10 groups 2 pairs for programmed scan
Display
10 Hz frequency resolution
Antenna
SO239 50Ω
Power supply
13.8 VDC nominal (12~16 VDC)
Power consumption
1.9A RX (with no input signal). 20A TX (at max RF power)
Audio power
1.5W on 8Ω
Audio output
Jack 6.35 mm (4~16Ω headphone)
Connections
Jack 3.5 mm (4~16Ω external speaker). Jack 6.35 mm (CW key) Jack 8-pin (microphone) RCA (ACC3 / spare terminal) RCA (AFSK IN) RCA (AFSK OUT) 6-pin DIN (ACC1) 7-pin DIN (REMOTE) 13-pin DIN (ACC2 / accessories)

Mechanical and environmental data

Operating temperature
from -10°C to +50°C
Dimensions
270 (W) x 96 (H) x 313 (D) mm without projections 279 (W) x 108 (H) x 335 (D) mm with projections
Weight
6.3kg without antenna tuner 7.3kg with antenna tuner

Optional filter YK-88CN.
Optional filter YK-88C.
Optional filter YK-88SN.
Optional filter YK-88S.
With optional filters.
TS-440SAT version. The AT-440 tuner operates within amateur bands from 3.5 thru 29.7 MHz.

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TS-440S final unit :

Kenwood TS-440S final unit schematic diagram

TS-440S price

We have collected for your convenience the Kenwood TS440 sale price (Euro) and its trend over time. Useful to guarantee a cheaper purchase of this radio and to put it for sale in the second-hand market. Of course offers, accessories, warranty terms and conditions can lead to different figures.

Price	Date	Condition
EUR 298.00 (319USD)	2022-jan	Second Hand TS-450SAT version. Working. With DC cord and a generic mic
EUR 249.00	2021-nov	Second Hand TS-450SAT version. In good condition but with reduced RF output on all bands
EUR 464.00 (399GBP)	2021-may	Second Hand TS-450SAT version. Great condition
EUR 196.00 (229USD)	2020-mar	Second Hand TS-450S version. Working on receive and transmit, but with some issues. The overall cosmetic condition is fair to poor

TS-440S review

OH5DH

26 January 2024

It's always been a great device, it's been working since 1988, but recently there was a problem with the microphone input. The RF unit (X44-1680-00) has a problem. It's difficult to fix, I'll have to take it in for repairs.

[End post]

alessio215 ON5ALE

28 December 2023

My dad have one. He bought it new but ruined it leaving it on for 10 hours at the time, to send certain digital signals in some contests. It created the dot problem and other issues. Many fixes later it works again.
The strong points: great final stage transistor system that lasts nice reception, yes it is not to todays specs but it does a good job oh the delicious design, the analogue meter and the neon display, I love that instead of LCD.
Weaknesses: you already know it creates issues overtime if it has been on for too many time the gue inside some parts gets conductive and will give you headaches. Touchbutton pad wears out after 2 decades.
Give it 7,5/10.

[End post]

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