Kenwood TM 701A Manual

The Kenwood TM 701A is a dual-band VHF/UHF FM transceiver designed for amateur radio use. This versatile radio features 50W output on VHF and 35W on UHF, wide frequency coverage, cross-band repeat function, multiple memory channels, CTCSS/DCS encode/decode, and robust construction for reliable operation. Below are key sections covering features, installation, operation, programming, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Functions 6. Programming and Memory 7. Advanced Features 8. Maintenance 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Main unit with front panel controls, microphone connector, antenna ports, DC power input, and accessory connectors.

Feature	Description
Frequency Range	VHF: 136-174 MHz, UHF: 400-470 MHz
Output Power	VHF: 50W, UHF: 35W (adjustable)
Memory Channels	Up to 200 memory channels
Cross-band Repeat	Full duplex cross-band repeating function
CTCSS/DCS	Encode and decode with tone scan
Power Supply	13.8V DC nominal
Antenna Connectors	SO-239 for VHF, UHF
Display	LCD with backlight
Microphone	Included with up/down controls
Size/Weight	Compact design for mobile installation

Installation

Unpack and inspect contents. Ensure all components are present before installation.

Mounting: Secure unit in vehicle using mounting bracket. Choose location with good ventilation.
Power Connection: Connect red wire to positive (+) 13.8V DC, black wire to negative (-) ground.
Antenna Installation: Install VHF and UHF antennas using appropriate mounts and cables.
Microphone Connection: Plug microphone into front panel connector.

WARNING! Ensure proper fuse protection in power line. Do not operate without antenna connected.

First-Time Setup

Power on radio; initialize settings for first use.

Power On: Connect DC power; press POWER button.
Frequency Entry: Use keypad or VFO knob to set desired frequency.
Power Level: Set output power using PWR button (HIGH/LOW).
Squelch Adjustment: Adjust squelch control for minimal background noise.
Memory Storage: Store frequently used frequencies in memory channels.

CAUTION! Verify antenna connection before transmitting. Start with low power for testing.

Specifications

Frequency Coverage: VHF 136-174 MHz, UHF 400-470 MHz
Output Power: VHF: 50W max, UHF: 35W max
Power Supply: 13.8V DC ±15%
Current Drain: Receive: 0.8A, Transmit: 10A max
Modulation: 16KΦF3E (FM)
Antenna Impedance: 50 ohms
Memory Channels: 200 channels
Operating Temp: -20°C to +60°C
Dimensions: (W x H x D) Approx. 140 x 40 x 160 mm
Weight: Approx. 1.2 kg

Controls and Functions

Front Panel: POWER, VOLUME, SQUELCH, VFO/MR, FUNCTION, and numeric keypad.

Main Controls: POWER (on/off), VOLUME (audio level), SQUELCH (noise suppression), VFO/MR (frequency/memory mode), FUNCTION (access secondary functions).

Display: Shows frequency, mode, memory channel, signal strength, and status indicators. Microphone: PTT, up/down buttons, programmable function keys.

Programming and Memory

Store and recall frequencies with optional tone settings.

Select VFO Mode: Press VFO/MR to enter frequency mode.
Enter Frequency: Use keypad or knob to set desired frequency.
Store to Memory: Press F then MR to store current frequency.
Select Memory Channel: Choose channel number (1-200).
Add Tone: Press TONE to set CTCSS or DCS if required.
Recall Memory: Press MR and select channel number.

Tip: Group similar frequencies in consecutive memory channels for easy access.

Advanced Features

Cross-band Repeat: Enables receiving on one band and transmitting on another simultaneously.

Enable Cross-band: Press F then BAND to activate.
Set Frequencies: Program input and output frequencies.
Adjust Settings: Set time-out timer and other parameters.
Monitor Operation: Verify proper repeating function.

Other Features: Dual watch, priority channel, scanning functions, tone encode/decode.

Maintenance

Regular maintenance ensures optimal performance and longevity.

Cleaning: Use dry cloth for exterior. Keep ventilation openings clear.

Inspection: Periodically check antenna connections, power cables, and mounting hardware.

CAUTION! Do not use solvents or abrasive cleaners. Disconnect power before cleaning.

Regulatory Information

FCC Part 97: Certified for amateur radio service. This device must accept any interference received, including interference that may cause undesired operation. For amateur use only. Requires appropriate amateur radio license for operation. Kenwood Corporation - All rights reserved.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power connection/fuse	Check DC connections; verify fuse; ensure proper voltage.
No transmission	PTT/microphone	Check microphone connection; verify PTT function; check antenna.
Poor reception	Antenna/squelch	Verify antenna connection; adjust squelch; check coaxial cables.
Memory lost	Power interruption	Re-enter memory data; check backup battery if applicable.
Cross-band not working	Settings/frequencies	Verify frequency programming; check time-out timer settings.

Reset: Function + Power to reset to factory defaults if needed.

Service: Contact authorized Kenwood service center for technical support.