Kenwood TM D710A Manual

The Kenwood TM D710A is a dual-band mobile transceiver featuring 144/430MHz bands, 50W output power on VHF and 35W on UHF, built-in GPS receiver, APRS functionality, cross-band repeat capability, large TFT color display, detachable front panel, and multiple scanning modes. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: Dual-band transceiver unit, detachable control panel, microphone, GPS antenna, power cable, mounting bracket.

Feature	Description
Frequency Range	144-148MHz (VHF), 430-450MHz (UHF)
Output Power	50W VHF, 35W UHF (adjustable)
GPS Receiver	Built-in with external antenna port
APRS Function	Automatic Packet Reporting System
Cross-band Repeat	Simultaneous receive/transmit on different bands
Display	2.4" TFT color LCD
Memory Channels	Over 400 memory channels
Scanning Modes	Programmable, memory, band, priority scan
Power Requirements	13.8V DC ±15%
Operating Temp	-20°C to +60°C

Installation

Unpack and inspect contents. Select suitable mounting location.

1. Mount main unit: Secure in vehicle using mounting bracket.
2. Connect power: Attach red wire to positive terminal, black wire to negative terminal.
3. Install antennas: Connect VHF and UHF antennas to respective ports.
4. Connect GPS antenna: Attach to GPS antenna port for position data.
5. Attach control panel: Mount detachable front panel in convenient location.

WARNING! Ensure proper fuse rating (15A recommended). Connect power with ignition off to prevent damage.

First-Time Setup

Power on transceiver; configure basic settings.

1. Set operating frequency: Use VFO knob or direct frequency entry.
2. Configure squelch: Adjust to eliminate background noise.
3. Set power level: Select appropriate output power for conditions.
4. Program memory channels: Store frequently used frequencies.
5. Enable GPS: Ensure GPS antenna connected for APRS functions.
6. Configure APRS: Set beacon interval and position format.

CAUTION! Verify antenna connections before transmitting to prevent damage.

Specifications

• Frequency Coverage: 144-148MHz (VHF), 430-450MHz (UHF)
• Output Power: 50W VHF, 35W UHF (5W low power setting available)
• Modulation: FM (16F3)
• Antenna Impedance: 50 ohms
• Current Consumption: Receive: 0.8A (max), Transmit: 13A (max)
• GPS: Built-in receiver with NMEA 0183 output
• APRS: 1200/9600 bps packet communication
• Memory Channels: 400+ memory channels with alphanumeric tags
• Dimensions: Main unit: 140W × 40H × 156D mm
• Weight: Approximately 1.2 kg

Controls and Settings

Access functions via front panel controls and menu system.

Front Panel: Power button, Volume knob, SQL knob, VFO/MR button, A/B band selector, Function key, Menu button.

Menu Functions: Squelch settings, Power level, Scan modes, APRS configuration, GPS settings, Display options, Tone encode/decode, Cross-band repeat, Memory management, System reset.

Display Indicators: Signal strength, Transmit indicator, Busy channel, GPS status, APRS activity, Battery voltage.

Connecting Accessories

External speaker, data cable, programming cable, additional antennas.

1. External speaker: Connect to SP jack for improved audio.
2. Data interface: Use DATA port for PC programming.
3. External GPS: Additional GPS receiver if needed.
4. Mobile mounting: Use supplied bracket for secure installation.

Tip: Use Kenwood genuine accessories for optimal performance.

Operating Modes

Supports simplex, duplex, cross-band repeat, and data modes.

1. Simplex operation: Direct communication on same frequency.
2. Duplex operation: Using repeater offsets.
3. Cross-band repeat: Receive on one band, transmit on another.
4. Memory operation: Quick access to stored frequencies.
5. Scan operation: Monitor multiple channels automatically.
6. APRS operation: Automatic position reporting and messaging.
7. GPS navigation: Display position and navigation data.

WARNING! Ensure proper licensing for operating frequencies and modes.

APRS Functions

Automatic Packet Reporting System for position tracking and messaging.

Features: Position beaconing, Object and item reporting, Message composition and reception, Weather station interface, Digipeating capability, Smart beaconing based on speed/direction.

Configuration: Beacon interval, Path settings, Symbol selection, Position format, Message acknowledgment, Digipeater settings.

Maintenance

Regular cleaning and inspection for optimal performance.

Clean exterior with dry cloth only. Check antenna connections periodically. Verify power connections remain secure. Update firmware when available.

CAUTION! Do not use chemical cleaners. Keep away from moisture and extreme temperatures.

Regulatory Information

FCC Part 15 and Part 97 compliant. This device complies with part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. CE marked for European compliance. For amateur radio use only - proper licensing required. 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 cable connections; verify fuse integrity.
Poor reception	Antenna connections	Ensure antenna connectors tight; check antenna condition.
GPS not working	Antenna/position	Verify GPS antenna connected; ensure clear sky view.
APRS not transmitting	Settings/digipeater	Check APRS settings; verify digipeater configuration.
Display issues	Connections/settings	Check control panel cable; adjust display contrast.
Overheating	Ventilation/power	Ensure adequate ventilation; reduce transmit power.

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

Service: Contact authorized Kenwood service center for repairs.