Kenwood TM D710GA Manual

The Kenwood TM D710GA is a dual-band mobile transceiver featuring 144/430MHz bands, APRS functionality, GPS receiver, cross-band repeat, wide frequency coverage, and robust construction for amateur radio use. 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. APRS Operation 8. Cross-band Repeat 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Dual-band transceiver, GPS receiver, TFT color display, microphone, remote control head capability, APRS functionality.

Feature	Description
Frequency Range	144-148MHz, 430-450MHz
Output Power	50W (VHF), 35W (UHF)
GPS Receiver	Built-in for APRS positioning
APRS Function	Automatic Packet Reporting System
Cross-band Repeat	Full duplex cross-band operation
Memory Channels	Over 400 memory channels
Display	TFT color LCD with backlight
Power Supply	13.8V DC nominal
Antenna Connectors	Two SO-239 connectors
Data Port	For PC programming and data

Installation

Unpack and inspect contents. Mount in vehicle securely.

Connect power: Red wire to positive (+), black wire to negative (-) of 13.8V DC source.
Install antennas: Connect VHF and UHF antennas to respective SO-239 connectors.
Mount control head: Use supplied bracket for secure mounting.
Connect microphone: Plug into MIC connector.

WARNING! Ensure proper fuse rating (15A recommended). Secure all wiring to prevent shorts.

First-Time Setup

Power on transceiver; initialize settings.

Set operating frequency: Use VFO dial or direct frequency entry.
Configure squelch: Adjust SQL control for background noise elimination.
Program memory channels: Store frequently used frequencies.
Set APRS parameters: Configure beacon rate and path settings.
Adjust display: Set contrast and backlight timing.

CAUTION! Verify antenna connections before transmitting.

Specifications

Frequency Coverage: 144-148MHz, 430-450MHz
Output Power: 50W (VHF), 35W (UHF) high power; 5W low power
Modulation: FM
Memory Channels: 400+ memories with alphanumeric tags
GPS: Built-in receiver with external antenna capability
APRS: 1200/9600 bps operation
Power Requirement: 13.8V DC ±15%
Current Drain: 12A max (transmit), 1.3A (receive)
Operating Temp: -20°C to +60°C

Controls and Settings

Front Panel: Power switch, Volume control, SQL control, Channel selector, Function keys.

Microphone: PTT, Up/Down buttons, Function keys, numeric keypad.

Menu Settings: APRS configuration, memory management, display settings, tone encode/decode, power settings, cross-band repeat setup, GPS parameters, beacon intervals, text messages.

Connecting Devices

External GPS: GPS antenna connector. Data: Mini-DIN 6-pin for PC interface. Audio: External speaker jack.

Turn off power before connecting accessories.
Connect GPS antenna for enhanced positioning accuracy.
Use Kenwood programming cable for PC connection.
External speaker connection for improved audio.

Tip: Use quality coaxial cables for antenna connections to minimize loss.

APRS Operation

Automatic Packet Reporting System for position reporting and messaging.

Enable APRS: Access APRS menu and activate function.
Set beacon rate: Configure transmission interval (typically 1-10 minutes).
Configure path: Set WIDE1-1,WIDE2-1 for standard digipeating.
Send messages: Use message function for text communication.
Monitor stations: View nearby APRS stations on display.
Position reporting: GPS provides automatic position data.

WARNING! Follow local regulations for APRS transmission rates.

Cross-band Repeat

Full duplex operation between VHF and UHF bands.

Enable cross-band: Access function menu and activate.
Set input frequency: Select receive frequency on one band.
Set output frequency: Select transmit frequency on other band.
Configure CTCSS: Set tones if required for access.
Monitor operation: Verify proper repeating function.

Note: Ensure legal operation and proper frequency coordination.

Care & Maintenance

Keep unit clean and dry. Use soft cloth for display cleaning. Avoid harsh chemicals.

CAUTION! Do not use solvents or abrasive cleaners. Keep ventilation openings clear.

Regulatory Information

FCC Part 97: Certified for amateur radio service. This device complies with part 15 of FCC rules. Operation subject to condition that device does not cause harmful interference. For amateur use only - requires appropriate license. Copyright © Kenwood Corporation. For support, visit www.kenwood.com or contact authorized service centers.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power connection/fuse	Check power wires; verify fuse; ensure proper voltage.
Poor reception	Antenna connections	Verify antenna connections; check SWR; ensure proper grounding.
APRS not working	GPS signal/settings	Ensure GPS antenna connected; verify APRS settings; check frequency.
No transmit	Settings/connections	Verify PTT operation; check microphone connection; confirm frequency authorization.
Display issues	Settings/power	Adjust contrast; check power supply; reset if necessary.

Reset: Menu > System > Reset to factory defaults if needed.

Service: Contact authorized Kenwood service center for repairs.