Kenwood R-5000 Manual

The Kenwood R-5000 is a professional communications receiver featuring general coverage reception from 100kHz to 30MHz, dual conversion superheterodyne system, digital PLL synthesizer, multiple operating modes including AM, SSB, CW, and FM, built-in noise blanker, RF attenuator, selectable AGC, and comprehensive frequency control. Below are key sections for operation, specifications, controls, setup, and troubleshooting.

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

Features at a Glance

Key components: Main receiver unit, front panel controls, rear panel connectors, power supply input, antenna terminals.

Feature	Description
Frequency Range	100kHz to 30MHz continuous coverage
Receiver System	Dual conversion superheterodyne
Frequency Control	Digital PLL synthesizer
Operating Modes	AM, LSB, USB, CW, FM
IF Bandwidth	Selectable 2.4kHz, 6kHz, 15kHz
AGC System	Fast/Slow/Off selectable
Noise Blanker	Built-in pulse noise reduction
RF Attenuator	0dB, 10dB, 20dB selectable
Power Requirements	13.8V DC ±15%
Antenna Input	50 ohm SO-239 connector

Installation

Unpack and inspect contents. Place on stable surface away from heat sources.

Connect antenna: Use coaxial cable with PL-259 connector to SO-239 antenna input.
Connect power: Use 13.8V DC power supply with correct polarity.
Connect audio: Use external speaker or headphones to audio output jack.
Ground connection: Connect ground terminal for optimal performance.

WARNING! Ensure proper ventilation; do not block cooling vents. Use correct power supply polarity.

First-Time Setup

Power on receiver; initialize settings.

Set operating frequency: Use main tuning knob or direct frequency entry.
Select operating mode: Choose AM, SSB, CW, or FM based on signal type.
Adjust audio: Set volume and tone controls for comfortable listening.
Configure AGC: Select Fast for SSB/CW, Slow for AM broadcast.
Set squelch: Adjust for background noise suppression in FM mode.

CAUTION! Avoid strong RF fields during initial setup to prevent front-end overload.

Specifications

Frequency Coverage: 100kHz - 30MHz continuous
Sensitivity: AM: 1μV for 10dB S/N, SSB: 0.5μV for 10dB S/N
Selectivity: AM: 6kHz, SSB: 2.4kHz, CW: 500Hz optional
Image Rejection: Greater than 70dB
IF Rejection: Greater than 80dB
Audio Output: 2W at 10% distortion into 8 ohms
Power Consumption: Approx. 15W maximum
Dimensions: 320(W) x 110(H) x 260(D) mm
Weight: Approx. 4.5kg

Controls and Settings

Front Panel: POWER, VOLUME, SQUELCH, MODE selector, TUNING, RF GAIN, AGC, NB, ATT.

Main Controls: MODE (AM/LSB/USB/CW/FM), TUNING (main knob and fine tune), RF GAIN (manual sensitivity), AGC (Fast/Slow/Off), NB (Noise Blanker On/Off), ATT (RF attenuator 0/10/20dB).

Audio: VOLUME, TONE (bass/treble adjustment). Display: Frequency readout, S-meter, mode indicator. Special Functions: Clarifier for SSB fine tuning, Passband Tuning for selective reception, Memory channels for frequency storage.

Connecting Antennas

Primary antenna: SO-239 connector for 50 ohm coaxial feed. External antenna tuner compatible.

Use quality coaxial cable (RG-8, RG-58, etc.) with PL-259 connector.
Ensure proper antenna grounding for lightning protection.
For longwire antennas, use appropriate balun or matching network.
Keep antenna cables away from power lines and noise sources.

Tip: Experiment with antenna placement and orientation for best reception on desired bands.

Operating Modes

Supports multiple reception modes for different signal types.

AM: For broadcast and amateur radio communications
LSB: Lower Sideband for amateur radio below 10MHz
USB: Upper Sideband for amateur radio above 10MHz
CW: Continuous Wave for Morse code reception
FM: Frequency Modulation for certain utility stations

Mode Selection: Use MODE button to cycle through available modes. Optimal settings vary by mode and frequency band.

Advanced Features

Noise Blanker: Effective against pulse-type interference. RF Attenuator: Reduces strong signal overload. Passband Tuning: Adjusts effective bandwidth. Memory Channels: Store up to 10 frequently used frequencies.

Care & Maintenance

Keep unit clean and dry. Use soft cloth for cleaning; avoid chemical solvents. Periodically check connections and cables.

CAUTION! Disconnect power before cleaning. Do not use abrasive cleaners. Store in dry environment.

Regulatory Information

FCC Part 15: Class B computing device compliance. Manufactured by Kenwood Corporation. For technical support and service, contact authorized Kenwood service centers. This device is intended for reception of radio communications only.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No reception	Antenna/power	Check antenna connection; verify power supply; check fuse.
Poor sensitivity	Settings/antenna	Adjust RF gain; check attenuator setting; verify antenna.
Excessive noise	Local interference	Engage noise blanker; use RF attenuator; check grounding.
Frequency drift	Warm-up time	Allow 15-30 minutes for thermal stabilization.
Display issues	Power/brightness	Check power voltage; adjust display contrast control.

Reset: Power cycle if unit becomes unresponsive.

Service: Contact authorized Kenwood service center for internal repairs.