Kenwood TS-950S Manual

The Kenwood TS-950S is a high-performance HF transceiver featuring all-mode operation (SSB, CW, AM, FM, RTTY), built-in antenna tuner, digital signal processing, dual VFOs, IF shift, noise blanker, speech processor, and comprehensive memory functions. Operating on 160-10 meter amateur bands with 200W output power. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

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

Feature	Description
Frequency Coverage	1.8-30 MHz amateur bands
Output Power	200W PEP (SSB), 200W (CW), 60W (AM)
Modes	USB, LSB, CW, AM, FM, FSK
VFO System	Dual VFOs with split operation
IF Shift	Adjustable IF bandwidth and shift
Noise Blanker	Built-in pulse noise reduction
Speech Processor	Built-in audio compression
Antenna Tuner	Built-in automatic antenna tuner
Memory Channels	99 memory channels with scan
Power Requirements	13.8V DC, 22A max

Installation

Unpack and inspect contents. Place on stable operating surface.

1. Connect power supply: Use heavy gauge wire to 13.8V DC source with proper polarity.
2. Connect antenna: Use coaxial cable to ANT connector; ensure proper impedance matching.
3. Connect microphone: Use 8-pin DIN connector to MIC jack.
4. Connect accessories: Use accessory ports for external speakers, keyers, etc.
5. Ground station: Connect chassis ground for safety and noise reduction.

WARNING! Ensure proper ventilation; do not block cooling vents. Use appropriate fusing.

First-Time Setup

Power on transceiver; initialize settings.

1. Set operating frequency: Use main dial to select desired band and frequency.
2. Select mode: Press MODE button to choose SSB, CW, AM, or FM.
3. Adjust audio: Set AF GAIN and use built-in speaker or external audio.
4. Set RF power: Adjust POWER control for desired output level.
5. Tune antenna: Use TUNE function to match antenna system.
6. Program memories: Store frequently used frequencies in memory channels.

CAUTION! Verify antenna system before transmitting to prevent damage.

Specifications

• Frequency Range: 1.8-30 MHz (amateur bands)
• Power Output: 200W PEP (SSB), 200W (CW), 60W (AM)
• Modes: LSB, USB, CW, AM, FM, FSK
• Sensitivity: 0.25μV for 10dB S/N (SSB)
• Selectivity: 2.4kHz (SSB), 500Hz (CW), 6kHz (AM)
• VFO Stability: ±200Hz after warm-up
• Power Supply: 13.8V DC ±15%, 22A max
• Dimensions: 140H × 406W × 355D mm
• Weight: 12.5 kg

Controls and Settings

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

Main Controls: Frequency dial, function keys, meter, LCD display, multi-function knobs.

Receiver: RF GAIN, AGC (Fast/Slow/Off), IF SHIFT, WIDTH, NB level. Transmitter: MIC GAIN, COMP, VOICE LOCK, MONITOR. System: CLARIFIER, RIT/XIT, MEMORY functions, SCAN modes. Display: S/RF/PWR/SWR meter, frequency readout, status indicators.

Connecting Accessories

Antenna: SO-239 connector. Power: Heavy duty terminals. Audio: External speaker jack. Control: Accessory ports.

1. Turn off power before connecting accessories.
2. Match impedance for antenna systems (50 ohms).
3. Use shielded cables for audio connections.
4. Follow manufacturer instructions for external devices.

Tip: Use ferrite beads on cables to reduce RF interference.

Operating Procedures

Basic transmitting and receiving operations.

1. Select frequency: Use main dial or memory recall.
2. Choose mode: Press MODE for desired operating mode.
3. Adjust receiver: Set RF GAIN, AGC, and filters for optimal reception.
4. Transmit: Press PTT or use VOX; speak into microphone.
5. Monitor: Use S-meter and ALC for proper operating levels.
6. Split operation: Use SPLIT for different transmit/receive frequencies.
7. Memory operation: Store/recall frequencies in memory channels.
8. Scanning: Use automatic scanning of memory channels or band.

WARNING! Always check SWR before high-power transmission.

Memory Functions

99 memory channels with comprehensive storage capabilities.

Store: Frequency, mode, filter settings, offset, and other parameters. Recall: Direct access or scanning. Scan: Memory scan, program scan, band scan functions. Lock: Memory lock to prevent accidental changes.

Care & Maintenance

Keep unit clean and dry. Use compressed air for dust removal. Check connections periodically.

CAUTION! Disconnect power before cleaning. Avoid liquid cleaners. Service by qualified technicians only.

Regulatory Information

FCC Part 97: Certified for amateur radio service. CE compliant for European markets. Manufactured to Kenwood quality standards. For technical support and service, contact authorized Kenwood service centers. Copyright © Kenwood Corporation.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power supply/fuses	Check DC power connection; verify fuse condition; ensure proper voltage.
No transmission	Settings/connections	Check PTT operation; verify microphone connection; check ALC levels.
Poor reception	Antenna/tuning	Verify antenna connection; check antenna tuner; adjust receiver settings.
Overheating	Ventilation/power	Ensure adequate ventilation; reduce power output; check duty cycle.
Memory loss	Backup battery	Replace internal backup battery; reprogram memories.

Reset: Power cycle or factory reset procedure if available.

Service: Contact authorized Kenwood service centers for repairs.