Manual Book Kenwood TS-440S

The Kenwood TS-440S is a high-performance HF transceiver covering 1.8-30 MHz with 100W output power. It features built-in antenna tuner, DSP filtering, multiple operating modes (SSB, CW, AM, FM, RTTY), memory channels, scanning functions, and comprehensive connectivity options. Below are key sections for operation, features, installation, setup, and troubleshooting.

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

Features at a Glance

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

Feature	Description
Frequency Coverage	1.8-30 MHz all amateur bands
Output Power	100W PEP (SSB), 100W (CW)
Built-in Antenna Tuner	Automatic antenna matching
Operating Modes	LSB, USB, CW, AM, FM, FSK
Memory Channels	100 programmable memories
DSP Filtering	Digital signal processing
Scan Functions	Programmable band/memory scan
IF Shift	Interference rejection
NB/ANL	Noise blanker and automatic noise limiter
RF Attenuator	20dB RF input attenuation

Installation

Unpack and inspect contents. Place on stable operating surface.

Connect antenna: Use appropriate coaxial cable to ANT connector.
Connect power: Use 13.8V DC power supply with correct polarity.
Connect microphone: Plug into MIC connector on front panel.
Connect accessories: Use ACC connector for external devices.
Ground connection: Connect ground terminal for safety.

WARNING! Ensure proper power supply voltage and polarity to prevent damage. Use appropriate antenna for desired frequency bands.

First-Time Setup

Power on transceiver; initialize settings.

Set operating frequency: Use main tuning dial or keypad entry.
Select mode: Choose LSB, USB, CW, AM, or FM as needed.
Adjust power output: Set appropriate power level for operation.
Configure antenna tuner: Run automatic tuning procedure.
Set squelch: Adjust for background noise suppression.
Program memories: Store frequently used frequencies and modes.

CAUTION! Verify antenna and transmission line integrity before transmitting.

Specifications

Frequency Range: 1.8-30 MHz (all amateur bands)
Output Power: 100W PEP (SSB), 100W (CW)
Modes: LSB, USB, CW, AM, FM, FSK
Sensitivity: 0.25μV for 10dB S/N (SSB)
Selectivity: DSP filtering with adjustable bandwidth
Antenna Impedance: 50 ohms unbalanced
Power Requirement: 13.8V DC ±15%, 20A max
Dimensions: 240(W) × 95(H) × 290(D) mm
Weight: 5.5 kg

Controls and Settings

Front Panel: POWER, RF POWER, MODE, FILTER, NB/ANL, AGC, VOX, TUNER.

Main Controls: Tuning dial, function keys, mode selection, filter selection, memory operations.

RF Settings: Power output, RF gain, preamp, attenuator. Audio: AF gain, monitor, VOX controls. Filter: DSP bandwidth, IF shift, notch filter. Memory: Store/recall frequencies and modes. Scan: Programmable band and memory scanning.

Connecting Accessories

Microphone: 8-pin DIN connector. Antenna: SO-239 connector. Data: ACC connector for packet, RTTY. External speaker: SP connector.

Turn off power before connecting accessories.
Match connectors properly (microphone pin configuration).
Use appropriate cables for data connections.
Verify accessory compatibility before connection.

Tip: Use shielded cables for audio and data connections to reduce noise.

Operating Modes

Supports multiple communication modes for amateur radio operation.

SSB Operation: Select LSB (lower sideband) or USB (upper sideband)
CW Operation: Adjust keyer speed and side tone
AM Operation: For AM broadcast reception and transmission
FM Operation: For FM simplex and repeater operation
RTTY/FSK: For digital mode operation
Memory Operation: Quick recall of stored frequencies
Scan Operation: Automatic frequency scanning
Tuner Operation: Automatic antenna matching

WARNING! Ensure proper mode selection for intended operation. Verify frequency authorization for your license class.

Memory Functions

100 memory channels for storing frequencies, modes, and settings.

Memory Store: Press F→M→MEM to store current settings. Memory Recall: Press MEM then channel number. Memory Clear: Hold CLR to erase memory. Memory Scan: Scan through programmed memory channels.

Maintenance & Care

Keep unit clean and dry. Use soft cloth for cleaning; avoid chemicals.

Regular maintenance: Check connections, clean controls, verify performance. Storage: Keep in dry environment, cover when not in use.

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

Regulatory Information

FCC Part 97: Certified for amateur radio service. Manufactured by Kenwood Corporation. For amateur use only - operator must possess appropriate license. Technical specifications subject to change without notice.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power connection	Check power cable, fuse, voltage
No transmission	Microphone/Settings	Check microphone, PTT, power setting
Poor reception	Antenna/Tuning	Verify antenna connection, run tuner
Memory lost	Backup battery	Replace internal backup battery
Tuner not working	Antenna/SWR	Check antenna, cable, SWR limits

Reset: Power off/on for soft reset. Factory reset available in service menu.

Service: Contact authorized Kenwood service center for repairs.