Kenwood TM V7A Manual

The Kenwood TM V7A is a dual-band VHF/UHF FM transceiver designed for amateur radio use, featuring cross-band repeat capability, 50 memory channels, CTCSS/DCS encode and decode, wide frequency coverage, and robust construction. 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. Memory Operations 8. Cross-band Operation 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Dual-band transceiver, microphone, DC power cable, mounting bracket, and user manual.

Feature	Description
Frequency Range	VHF: 136-174 MHz, UHF: 400-470 MHz
Output Power	VHF: 50W, UHF: 35W (adjustable)
Memory Channels	50 programmable channels
Cross-band Repeat	Full duplex cross-band repeating capability
CTCSS/DCS	Tone encode and decode functions
Power Supply	13.8V DC negative ground
Antenna Connectors	Two SO-239 connectors for VHF/UHF
Display	LCD with dual frequency display
Size	140(W) x 40(H) x 170(D) mm
Weight	Approximately 1.2 kg

Installation

Unpack and inspect contents. Choose suitable mounting location.

Connect power: Red wire to positive (+), black wire to negative (-) of 13.8V DC power source.
Connect antennas: Use appropriate VHF and UHF antennas with PL-259 connectors.
Mount unit: Use provided bracket for secure mounting in vehicle or base station.
Connect microphone: Plug into MIC jack on front panel.

WARNING! Ensure proper polarity when connecting power. Reverse polarity may damage the unit.

First-Time Setup

Power on unit; initialize settings as needed.

Set operating frequency: Use main dial to select desired frequency.
Adjust squelch: Turn SQL knob until background noise disappears.
Set power level: Use PWR button to select high/low power.
Program memory channels: Store frequently used frequencies.
Configure CTCSS/DCS: Set tones if required for repeater access.

CAUTION! Ensure proper antenna connection before transmitting.

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: 50 channels
Operating Temperature: -20°C to +60°C
Dimensions: 140(W) x 40(H) x 170(D) mm

Controls and Settings

Front Panel: POWER/VOLUME knob, SQL knob, main tuning dial, function keys, microphone jack.

Main Controls: POWER/VOLUME (on/off and volume), SQL (squelch control), PWR (power level selection), MHz (band selection), A/B (VFO selection), F (function key).

Display: Shows active frequencies, memory channel numbers, operating mode, and status indicators. Menu System: Access via F key for advanced settings including CTCSS/DCS, scan functions, cross-band repeat, and system configuration.

Connecting Devices

External Speaker: Use EXT SP jack for external audio. Data Port: For packet radio or external control. Remote Head: Optional remote head kit available.

Turn off unit before making connections.
Use appropriate cables and connectors.
Ensure secure connections to prevent signal loss.

Tip: Use high-quality coaxial cables for antenna connections to maximize performance.

Memory Operations

Store and recall up to 50 frequencies with associated settings.

Store memory: Tune to desired frequency, press F then MR to store.
Recall memory: Press MR and use dial to select memory channel.
Memory scan: Press SCAN to scan programmed memory channels.
Memory clear: Use menu function to clear individual or all memories.
Memory name: Some models allow alphanumeric naming of memory channels.

WARNING! Memory contents may be lost if power is disconnected for extended periods.

Cross-band Operation

Cross-band repeat function allows receiving on one band and transmitting on another.

Enable cross-band: Access menu and enable cross-band repeat function.
Set frequencies: Program receive and transmit frequencies.
Configure offsets: Set appropriate frequency offsets if needed.
Monitor operation: Ensure proper operation and adjust squelch as needed.

Note: Check local regulations regarding cross-band repeat operation.

Care & Maintenance

Keep unit clean and dry. Use soft cloth for cleaning; avoid harsh chemicals.

CAUTION! Do not operate with damaged antennas or power cables. Store in dry, dust-free environment.

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 technical support, contact Kenwood authorized service centers. Operation subject to amateur radio licensing requirements.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power connection	Check power cable connections and fuse
No transmission	Settings/antenna	Check PTT function, antenna connection, power setting
Poor reception	Antenna/squelch	Adjust squelch, check antenna and connections
Memory loss	Power interruption	Re-program memory channels
Overheating	Ventilation	Ensure adequate ventilation, reduce power if necessary

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

Service: Contact authorized Kenwood service center for repairs.