LISHENG LS-747 High Power 10W Amateur Two Way Radio User Manual

1. Introduction

This manual provides essential information for the safe and efficient operation of your LISHENG LS-747 High Power 10W Amateur Two Way Radio. Please read this manual thoroughly before using the radio to ensure proper function and to prevent damage to the device or injury to yourself. Keep this manual for future reference.

2. Safety Information

Observe the following safety precautions to reduce the risk of fire, electric shock, or personal injury:

• Do not operate the radio in explosive atmospheres (e.g., flammable gases, dust particles, metallic powders).
• Do not modify the radio. Unauthorized modifications can void your warranty and violate regulatory compliance.
• Use only Lisheng approved batteries and chargers. Using unapproved accessories may cause damage or injury.
• Do not expose the radio to direct sunlight for extended periods or to extreme temperatures.
• Keep the radio away from water and moisture.
• Maintain a safe distance from the antenna when transmitting to minimize RF exposure.

3. Product Overview

The LISHENG LS-747 is a high-power amateur two-way radio designed for reliable communication. Familiarize yourself with the radio's components:

Figure 3.1: Front view of the LISHENG LS-747 radio with key components labeled. Labels include Antenna, Channel Selector Knob, Power&Volume Knob, LED indicator, PTT key, Speaker, MIC, MIC/SPK Jack, Lamp Key, LCD Display, Monitor Key, and Keyboard.

Key Components:

• Antenna: For transmitting and receiving radio signals.
• Channel Selector Knob: Rotates to select desired channels.
• Power & Volume Knob: Turns the radio on/off and adjusts the audio volume.
• LED Indicator: Illuminates to indicate transmission (red) or reception (green).
• PTT (Push-To-Talk) Key: Press and hold to transmit, release to receive.
• Speaker: Outputs received audio.
• MIC (Microphone): Captures your voice for transmission.
• MIC/SPK Jack: Port for external microphone/speaker accessories.
• Lamp Key: Activates the display backlight or flashlight function.
• LCD Display: Shows channel number, frequency, battery status, and other operational icons.
• Monitor Key: Opens the squelch to listen for weak signals.
• Keyboard: Numeric and function keys for advanced settings and channel input.

4. Setup

4.1. Unpacking

Carefully unpack the radio and all accessories. The package should contain:

Figure 4.1: The LISHENG LS-747 package contents, showing the radio, antenna, battery, desktop charger, power adapter, hand strap, and user manual.

4.2. Battery Installation

1. Align the battery pack with the grooves on the back of the radio.
2. Slide the battery pack upwards until it clicks into place.
3. To remove, press the battery release latch (if present) and slide the battery downwards.

Figure 4.2: The LISHENG LS-747 radio with its battery compartment exposed and the battery pack shown separately, ready for installation or removal.

4.3. Antenna Attachment

1. Screw the antenna into the connector on the top of the radio by turning it clockwise until it is finger-tight.
2. Do not overtighten the antenna.

4.4. Charging the Battery

Before initial use, fully charge the battery. The radio can be charged by placing it in the desktop charger.

1. Connect the AC adapter to the desktop charger and plug it into a power outlet.
2. Place the radio (with battery installed) into the charging slot of the desktop charger.
3. The charger's LED indicator will typically show red during charging and turn green when fully charged.

Figure 4.3: The LISHENG LS-747 radio securely seated in its desktop charging cradle, indicating it is ready for or currently undergoing charging.

5. Operating Instructions

5.1. Power On/Off and Volume Adjustment

1. To power on the radio, rotate the Power & Volume Knob clockwise until you hear a click. The LCD display will light up.
2. To adjust the volume, continue rotating the Power & Volume Knob. Clockwise increases volume, counter-clockwise decreases it.
3. To power off, rotate the Power & Volume Knob counter-clockwise until you hear a click and the display turns off.

5.2. Channel Selection

Rotate the Channel Selector Knob on the top of the radio to select the desired channel. The selected channel number will be displayed on the LCD screen.

5.3. Transmitting and Receiving

1. To transmit, press and hold the PTT (Push-To-Talk) key on the side of the radio. Speak clearly into the microphone. The LED indicator will glow red.
2. Release the PTT key to stop transmitting and return to receive mode. The LED indicator will glow green when a signal is being received.

5.4. Basic Menu Navigation

The radio features a menu system for advanced settings. Use the 'FUN' and 'MENU' buttons along with the arrow keys (◀ ▶) to navigate.

• Press the MENU button to enter the main menu.
• Use the ◀ and ▶ arrow keys to scroll through menu options.
• Press MENU again to select an option or confirm a setting.
• Press the FUN button to exit the menu or cancel an operation.

5.5. Keypad Functions

The numeric keypad provides direct access to certain functions and allows for frequency input in VFO mode.

• 1SOL: Squelch Level adjustment.
• 2MEG: Megahertz direct input or function.
• 3MODE: Toggles between different operating modes (e.g., VFO/Memory).
• 4PWR: Adjusts transmit power level (High/Low).
• 5VOX: Activates Voice Operated Exchange (VOX) for hands-free transmission.
• 6%‰CC: CTCSS/DCS settings for tone squelch.
• 7CTC: CTCSS tone selection.
• 8DCS: DCS code selection.
• 9SCAN: Initiates channel or frequency scanning.
• #REV: Reverses transmit and receive frequencies (for repeater use).
• 0FM: Activates FM radio receiver.
• *COM: Toggles between different communication settings or functions.

6. Maintenance

6.1. Cleaning

• Clean the radio's exterior with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
• Ensure the MIC/SPK jack cover is properly sealed when not in use to prevent dust and moisture ingress.

6.2. Battery Care

• To maximize battery life, avoid overcharging or completely discharging the battery frequently.
• If the radio will not be used for an extended period, remove the battery and store it in a cool, dry place.

6.3. Storage

Store the radio in a dry, dust-free environment away from direct sunlight and extreme temperatures when not in use.

7. Troubleshooting

8. Specifications

9. Warranty and Support

For warranty information and technical support, please refer to the documentation included with your purchase or contact your authorized Lisheng dealer. Keep your proof of purchase for warranty claims.