Kenwood TS-450S Manual PDF

The Kenwood TS-450S is a high-performance amateur radio transceiver featuring 100W output power, general coverage receiver, built-in antenna tuner, multiple operating modes including SSB, CW, AM, FM, and RTTY, digital signal processing, noise reduction, and comprehensive memory functions. Below are key sections for operation, features, specifications, and technical details.

1. Features Overview 2. Front Panel Controls 3. Basic Operation 4. Technical Specifications 5. Antenna Connections 6. Memory Functions 7. DSP Settings 8. Maintenance 9. Troubleshooting 10. Regulatory Information

Features Overview

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

Feature	Description
Frequency Coverage	Receive: 0.1-30MHz, Transmit: 1.8-30MHz (amateur bands)
Output Power	100W PEP (SSB), 100W (CW), 40W (AM), 25W (FM)
Modes	LSB, USB, CW, AM, FM, FSK
Built-in Tuner	Automatic antenna tuner with 3:1 VSWR range
DSP	Digital Signal Processing for noise reduction
Memory Channels	100 memory channels with alphanumeric labeling
IF Shift	Adjustable IF bandwidth and shift control
NB/ANL	Noise Blanker and Automatic Noise Limiter
RIT/XIT	Receiver and transmitter incremental tuning
Power Requirements	13.8V DC, 22A max

Front Panel Controls

Main controls: Power switch, volume control, squelch, RF gain, mode selection, frequency dial, function keys.

Power Switch: Turns transceiver on/off
Volume/Squelch: Adjusts audio level and squelch threshold
Mode Select: Chooses operating mode (LSB, USB, CW, AM, FM)
Frequency Control: Main tuning knob for frequency selection
Function Keys: Access secondary functions and menus
Memory Buttons: Store and recall frequency memories
DSP Controls: Adjust noise reduction and filter settings

NOTE: Refer to front panel diagram for exact control locations.

Basic Operation

Power on transceiver; initialize settings.

Connect power: 13.8V DC with proper polarity.
Connect antenna: Use appropriate coaxial cable to ANT connector.
Select frequency: Use main dial or memory recall.
Set mode: Choose LSB, USB, CW, AM, or FM as needed.
Adjust audio: Set volume and squelch for comfortable listening.
Transmit: Use PTT or VOX for transmission.

WARNING! Ensure proper antenna connection before transmitting to prevent damage.

Technical Specifications

Frequency Range: RX: 0.1-30MHz, TX: 1.8-30MHz (amateur bands)
Power Output: 100W PEP (SSB), 100W (CW)
Receiver Sensitivity: 0.25μV for 10dB S+N/N
Selectivity: SSB: 2.4kHz, CW: 500Hz, AM: 6kHz
Audio Output: 2W at 10% distortion
Power Supply: 13.8V DC ±15%, 22A max
Dimensions: 240W × 95H × 310D mm
Weight: 5.5 kg
Temperature Range: -10°C to +50°C

Antenna Connections

Connect antenna to ANT connector using coaxial cable.

Ensure transceiver is powered off before connecting antenna.
Use proper impedance matching (50 ohms recommended).
Use antenna tuner for optimal SWR (1.5:1 or better).
Check connections for tightness and corrosion.

CAUTION! Never transmit without proper antenna load to avoid damage.

Memory Functions

Store and recall frequencies, modes, and settings in 100 memory channels.

Store memory: Tune to desired frequency and mode, press [F] then [MW].
Select memory channel using numeric keypad or [MR] button.
Memory shift: Scroll through memories with up/down buttons.
Memory clear: Press [F] then [MC] to clear selected memory.
Memory lock: Prevent accidental changes with lock function.

Tip: Use memory names for easy identification of stored frequencies.

DSP Settings

Digital Signal Processing for enhanced receive performance.

DSP Function	Description	Setting Range
Noise Reduction	Reduces background noise	0-15 levels
Notch Filter	Removes specific interference	Manual/Auto
IF Shift	Shifts IF passband	±1.5kHz
IF Width	Adjusts filter bandwidth	1.8-4.0kHz
Contour	Adjusts audio response	0-15 levels

Maintenance

Regular maintenance ensures optimal performance.

Clean exterior with dry cloth only.
Check connections for corrosion or damage.
Verify power supply voltage and connections.
Update firmware if available.
Store in dry, dust-free environment.

WARNING! Do not use liquids or solvents for cleaning.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power connection	Check DC power cable and fuse
No transmit	Settings/connections	Check PTT, mode, antenna SWR
Poor reception	Antenna/RF gain	Check antenna, adjust RF gain
Memory lost	Backup battery	Replace internal backup battery
Overheating	Ventilation	Ensure adequate airflow around unit

Regulatory Information

FCC Part 97: Complies with amateur radio service rules. CE certified for European markets. Manufactured by Kenwood Corporation. For technical support and service, contact authorized Kenwood service centers. This device is intended for licensed amateur radio operators only.