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TS-940S

Name: Kenwood TS-940S transceiver
Brand: Kenwood
SKU: TS-940S
Price: 470.00 GBP
Availability: OnlineOnly

Specifications

Prices

Amateur 160-10 meters all-mode transceiver with 100 Watts power output and 150 kHz to 30 MHz general coverage receiver. Quadruple conversion superheterodyne, 9 front-end filters, dynamic range of 102 dB, SSB slope tune (PBT), 600Hz to 2400Hz CW variable bandwidth, IF notch, dual noise blankers. Transmitter final amplifier with 28V supply voltage for lowest distortion, auto tuner, RF speech processor, VOX, CW semi break-in or full break-in. Dual VFO's, direct entry of frequency from the key board, RIT and XIT, 40-channels memory, program and memory scan. Dual display, built-in 24 hour digital clock with timer. Ideated in Japan, year of introduction 1985.

Reference market : amateur-radio

TS-940S specifications

General

Frequency coverage
Receive	0.1500 ~ 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 Hz 1 MHz (UP/DOWN key)

Receiver

Sensitivity
SSB / CW / FSK	< 1.0 uV (0.15~0.5 MHz, 10dB S/N) < 4.0 uV (0.5~1.8 MHz, 10dB S/N) < 0.2 uV (1.8~30 MHz, 10dB S/N)
AM	< 10 uV (0.15~0.5 MHz, 10dB S/N) < 32 uV (0.5~1.8 MHz, 10dB S/N) < 2 uV (1.8~30 MHz, 10dB S/N)
FM	< 0.5 uV (1.8~30 MHz, 12 dB SINAD)
Selectivity
CW [1]	600~2400 Hz (-6dB)
CW / FSK / SSB	2.4 kHz (-6dB) 3.6 kHz (-60dB)
AM-N	2.4 kHz (-6dB) 3.6 kHz (-60dB)
AM-W	6 kHz (-6dB) 15 kHz (-50dB)
FM	12 kHz (-6dB) 22 kHz (-60dB)
RF attenuator
10 / 20 / 30 dB
DR (Dynamic Range)
102 dB (500Hz BW)
Image rejection
> 80 dB (1.8~30 MHz)
IF rejection
> 70 dB (1.8~30 MHz)
PBT (Passband Tuning)
Yes (SSB slope tune / CW VBT)
Notch filter
Manual	> 40 dB
NB (Noise Blanker)
NB1 (short pulse) NB2 (long pulse)
RIT (Receiver Incremental Tuning)
± 9.99 KHz
AGC (Automatic Gain Control)
Off, Fast, Slow
Frequency stability
± 10 ppm max with temperature from -10°C to +50°C
Frequency accuracy
± 10 ppm max with temperature +23°C
IF (Intermediate Frequency)
1°	45.05 MHz
2°	8.83 MHz
3°	455 kHz
4°	100 kHz (not FM)
Squelch sensitivity
< 0.32 uV
CW features
Semi break-in / full break-in Variable pitch

Transmitter

Output power
SSB / CW / FSK / FM	250 W max (DC input) ~100 W (RF output)
AM	140 W max (DC input) ~60 W max (RF output)
Spurious emission
Harmonics	< -40 dBc
Carrier suppression (SSB)
> 40 dB
Unwanted sideband suppression (SSB)
> 50 dB (1.5 kHz tone)
Intermodulation products (SSB)
< -37 dBc (single tone)
Maximum deviation (FM)
± 5 kHz
Audio response
400 ~ 2600 Hz (-6 dB, in SSB)
Microphone
500 ~ 50kΩ
XIT (Transmitter Incremental Tuning)
± 9.99 KHz
FSK features
170Hz shift
Antenna tuner [2]
Impedance range	20 ~ 150Ω
Minimum operating power	10 W

Features

Memory
40 regular memories / 4 groups
Display
10 or 100 Hz frequency resolution Slope/VBT graph or idle VFO on sub-display
Antenna
SO239 50Ω RCA 50Ω (RX out)
Power supply
110/220/240 VAC
Power consumption
80W RX 510W TX, max power
Audio power
1.5W on 8Ω
Audio output
Jack 6.35 mm (headphone)
Connections
Jack 8-pin (microphone) Jack 3.5 mm (external speaker) Jack 6.35 mm (CW key) 2 x RCA (IF OUT 8.83MHz / 100kHz) 2 x RCA (PHONE PATCH in/out) RCA (RTTY input) 6-pin DIN (ACC1) 13-pin DIN (ACC2) 7-pin DIN (REMOTE / linear amplifier) 8-pin DIN (X-VERTER / transverter)

Mechanical and environmental data

Dimensions
401 (W) x 141 (H) x 350 (D) mm
Weight
18.5kg, without AT-940 20kg, with AT-940

CW VBT continuously variable.
With AT-940 antenna tunner fitted.

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TS-940S rear panel and connections :

Kenwood TS-940S rear panel

TS-940S optional IF filters :

Kenwood TS-940S optional filter type YK-88A-1

Optional filter type YK-88A-1, for AM.
Center frequency 8830 kHz. Passband width 6 kHz (-6 dB). Attenuation bandwidth 11 kHz (-60 dB). Guaranteed attenuation more than 80 dB.

Kenwood TS-940S optional filter type YK-88C-1

Optional filter type YK-88C-1, for CW.
Center frequency 8830 kHz. Passband width 500 Hz (-6 dB). Attenuation bandwidth 1.5 kHz (-60 dB). Guaranteed attenuation more than 80 dB.

Kenwood TS-940S optional filter type YG-455C-1

Optional filter type YG-455C-1, for CW.
Center frequency 455 kHz. Passband width 500 Hz (-6 dB). Attenuation bandwidth 820 Hz (-60 dB). Guaranteed attenuation more than 80 dB.

Kenwood TS-940S optional filter type YG-455CN-1

Optional filter type YG-455CN-1, for CW.
Center frequency 455 kHz. Passband width 250 Hz (-6 dB). Attenuation bandwidth 480 Hz (-60 dB). Guaranteed attenuation more than 80 dB.

TS-940S price

We have collected for your convenience the Kenwood TS940S sale price (UK Pounds) 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
GBP 470.00 (549EUR)	2021-nov	Second Hand With YK88C-1 and YK455C-1 filters mounted. Comes with the original box
GBP 550.00	2021-sep	Second Hand In good condition and working. There are some scratches
GBP 508.00 (789USD)	2015-jul	Second Hand Comes with the original box, manuals, hand mic, AC power cord. This rig also has the optional voice synthesizer

TS-940S review

Ray

31 August 2024

I owned the TS940 and was very impressed with it. Unfortunately, it was damaged during shipment from the dealer to me after some maintenance had been completed. Prices vary, and some are ridiculous, e.g., $2000 from a ham in Australia with a $700 shipping tag.
The rig is anywhere from 35+ years old!

[End post]

Daniel LU3MB

13 December 2023

A fantastic rig, I had 3 and they are missed, just some problems with the internal Power Supply. I know of a friend who installed a modern switching PS inside, it turned out very well, the receiver was outstanding. The transmitter, another thoroughbred from the great Kenwood family.

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Oreilles Cassées

24 March 2023

TS-940S was my first HF radio when I became a HAM. I have been using it for 30+ years with no problem.

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