manuale kenwood ts 140s

The Kenwood TS-140S is a high-performance HF transceiver covering 1.8-30 MHz with 100W output power, featuring built-in antenna tuner, DSP filtering, multiple operating modes (SSB, CW, AM, FM), digital VFO, memory channels, and comprehensive connectivity options. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Operating Modes 8. Memory Functions 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Main transceiver unit, microphone connector, antenna ports, power input, accessory connectors, front panel controls.

Feature	Description
Frequency Coverage	1.8-30 MHz all amateur bands
Output Power	100W PEP (SSB), 100W (CW), 40W (AM)
Built-in Antenna Tuner	Automatic impedance matching
Operating Modes	USB, LSB, CW, AM, FM
DSP Filtering	Digital signal processing for improved reception
Memory Channels	99 programmable memories
VFO Operation	Dual VFOs with split operation
Power Requirements	13.8V DC ±15%
IF Shift	Adjustable intermediate frequency
NB/ANL	Noise blanker and automatic noise limiter

Installation

Unpack and inspect contents. Ensure proper ventilation around unit.

Connect power supply: Use 13.8V DC with proper polarity and sufficient current capacity.
Connect antenna: Use appropriate coaxial cable to ANT connector.
Connect microphone: Plug into MIC connector on front panel.
Connect accessories: Use accessory ports for external speakers, keyers, etc.

WARNING! Ensure proper grounding and use appropriate fuses. Do not operate without proper antenna connected.

First-Time Setup

Power on transceiver; initialize settings.

Set operating frequency: Use main tuning knob to select desired band.
Configure mode: Select appropriate operating mode (SSB, CW, AM, FM).
Adjust power output: Set appropriate power level for operation.
Configure antenna tuner: Run automatic tuning procedure.
Set squelch: Adjust for background noise suppression.

CAUTION! Ensure proper licensing for amateur radio operation in your country.

Specifications

Frequency Range: 1.8-30 MHz
Output Power: 100W PEP (SSB), 100W (CW), 40W (AM)
Power Supply: 13.8V DC ±15%, 20A max
Modes: USB, LSB, CW, AM, FM
Sensitivity: SSB/CW: 0.25μV, AM: 1.0μV, FM: 0.5μV
Selectivity: SSB: 2.4kHz, CW: 500Hz, AM: 6kHz, FM: 15kHz
Antenna Impedance: 50 ohms unbalanced
Dimensions: 240(W) × 88(H) × 252(D) mm
Weight: 4.2 kg

Controls and Settings

Front Panel: POWER, AF GAIN, RF GAIN, SQUELCH, MODE, FILTER, NB, ANL, AGC, VFO A/B, SPLIT.

Main Controls: Large tuning knob, function keys, mode selection, filter bandwidth, DSP settings, memory operations.

Audio: AF GAIN, MIC GAIN, monitor function. RF: RF POWER, AGC settings, preamp. Display: Backlight, meter functions, frequency readout. Memory: Store/recall frequencies and modes. Antenna: ATU controls, antenna selection.

Connecting Devices

Antenna: Coaxial cable to ANT port. Power: 13.8V DC with proper polarity. Audio: External speaker, headphones. Data: Accessory ports for computer interface.

Turn off power before making connections.
Use appropriate connectors and cables.
Ensure proper grounding for safety and performance.
Test all connections before full operation.

Tip: Use high-quality coaxial cables and proper connectors for best performance.

Operating Modes

Supports SSB, CW, AM, and FM operations.

SSB Operation: Select USB or LSB, adjust microphone gain, use AGC for optimal reception.
CW Operation: Select CW mode, adjust keyer speed, use narrow filters for weak signals.
AM Operation: Select AM mode for broadcast reception, adjust bandwidth as needed.
FM Operation: Select FM mode for local communications, adjust squelch.
Split Operation: Use VFO A/B and split function for cross-band operation.
Memory Operation: Store frequently used frequencies and settings.
Scan Operation: Use scanning functions to monitor multiple frequencies.
Tuning: Use main knob for frequency adjustment, step size selection available.

WARNING! Always identify your station according to regulations. Avoid interference with other services.

Memory Functions

99 memory channels for storing frequencies, modes, and settings. Memory scan function for monitoring stored channels.

Care & Maintenance

Keep unit clean and dry. Use soft cloth for cleaning. Ensure proper ventilation. Check connections periodically.

CAUTION! Do not use solvents or abrasive cleaners. Disconnect power before cleaning.

Regulatory Information

FCC Part 97: Complies with amateur radio service rules. CE compliant for European markets. For amateur use only - requires appropriate license. Copyright © Kenwood Corporation. For support, contact authorized Kenwood service centers or visit www.kenwood.com.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power connection/fuse	Check power cable and connections; verify fuse condition.
No transmission	Microphone/PTT	Check microphone connection; verify PTT operation.
Poor reception	Antenna/tuning	Verify antenna connection; run antenna tuner; check coaxial cables.
Overheating	Ventilation/power	Ensure adequate ventilation; reduce power output if necessary.
Memory loss	Backup battery	Check and replace internal backup battery if needed.

Reset: Power cycle or factory reset procedure if available.

Service: Contact authorized Kenwood service centers for technical support.