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The Kenwood TS-140S is a high performance HF transceiver designed for SSB, CW, AM and FM modes of operation on all amateur bands (160-10 Meters).

This compact, lightweight unit features an outstanding 500 kHz to 30 MHz general coverage receiver with superior dynamic range. The dual 10 Hz step digital VFOs operate independently of each other. 31 Memory channels can store frequency, mode and narrow-wide information at CW mode. 10 Memory channels (CH10 to CH19) store transmit and received frequencies independently allowing repeater or split frequency operation. 11 Memory channels (CH20 to CH30) establish the upper lower limits for band scanning. The scanning speed is adjustable.

The Kenwood TS-680S is similar to the TS-140S, but adds coverage of the 6 meter amateur band.

General characteristics

HAM bands
160m  80m  60m  40m  30m (WARC)  20m  17m (WARC)  15m  12m (WARC)  11m (CB)  10m 
Frequency stability
?
Tuning steps
9 / 10 / 100 / 1000 Hz

Receiver

RX-range
0.05-35 MHz
Modulations
AM   FM   CW   USB   LSB  
Sensitivity
AM (10 dB S/N)
0.5-1.6 MHz: 39.8 µV
1.6-21.5 MHz: 2.5 µV
21.5-30 MHz: 2.5 µV
FM (12 dB SINAD)
21.5-30 MHz: 0.35 µV
SSB/CW (10 dB S+N/N)
0.5-1.6 MHz: 4 µV
1.6-30 MHz: 0.25 µV
Selectivity
AM 6 kHz (-6 dB), 18 kHz (-50 dB)
FM 12 kHz (-6 dB), 25 kHz (-50 dB)
SSB/CW 2.2 kHz (-6 dB), 4.4 kHz (-60 dB)
Filters
?
Receiver system
Double conversion superheterodyne
IF-frequencies
1st: 40.055 MHz
2nd: 455 kHz
Image rejection
-50 dB
Audio output
1.5 W at 10% distortion / 8 ohms

Transmitter

TX-range
10-160 m + WARC
Modulations
AM   FM   CW   USB   LSB  
RF-Output
AM: Max 40 W, FM: Max 50 W, SSB/CW: Max 100 W

Connections

Antenna
SO-239
Impedance
50Ω
Other
-

Electrical

Power requirements
12-16 V DC
Current drain RX
1.5 A
TX
20 A max

Physical

Manufactured
Between 1987 and 199x in Japan
Dimensions (w×h×d)
270 × 96 × 270 mm (10.63 × 3.78 × 10.63 in)
Weight
6.10 kg (13.5 lbs)
Form factor
Base Station

Other features

Memories
31 channels in 1 bank(s)
Usage
Amateur / Ham radio operators
Features + options
IF Shift
RIT
VFO Tuning Torque adjust
Multifunction meter
Speech processor
Numerous I/O jacks
RF attenuator
Accessories
?
MPN
KENWOOD-TS-000140S

Manuals, diagrams and brochures

Kenwood TS-140S / TS-680S Instruction manual submitted by RigReference
Kenwood TS-140S / TS-680S Service manual submitted by RigReference
Kenwood TS-140S Service Manual submitted by RigReference
 
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Reviews & stories

Excellent first HF rig

Kenwood TS-140S, Desktop Shortwave Transceiver

I have had this radio for about a month, so far, and it seems very good. The TX audio is excellent on it, everyone tells me I have good audio. The RX audio also seems good. It puts out a full 100 watts on all the bands, according to my MFJ SWR/Wattmeter. I have worked a lot of DX with just a dipole and this radio. I would highly recommend it to anyone looking for a good used HF rig.

Overall
 
Performance
Build quality
Features
User friendliness
Value for money
Aquired
Good condition in 2014
USD 250.00

New and second-hand prices

Estimating the value of a rig can be challenging. We collect prices paid by real hams over the years to help you estimate the value of a used Kenwood TS-140S. Just bought or sold this model? Let us know what you traded it for and help other ham operators!

Based on historic data, today's second-hand price of the Kenwood TS-140S is around:

  • USD 278.00 ~ USD 205.00

These estimates are based on the following prices: (see all 5 prices)

Year Historic price Condition Submitted by
2020 USD 300.00 Used / Good eBay
2020 USD 324.99 Used / Good eBay
2019 USD 279.00 Used / Poor eBay
2014 USD 250.00 Used / Good 1094Jacob
2014 USD 250.00 Used / Good 1094Jacob

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