Introduction
This manual provides comprehensive instructions for the setup, operation, maintenance, and troubleshooting of your Wouxun KG-S72C Portable Handheld AM/FM CB Radio. Please read this manual thoroughly before using your device to ensure proper functionality and longevity.
Package Contents
Upon unboxing, verify that all the following components are included in your package:
- Wouxun KG-S72C Radio Unit
- Lithium-ion Battery Pack (2000mAh)
- Antenna
- Belt Clip
- Desktop Charger
- AC Adapter
- BNC Adapter
- Wrist Strap
- Owner's Manual (this document)

Figure 1: Wouxun KG-S72C radio with its complete set of accessories.
Setup
- Battery Installation:
Align the lithium-ion battery pack with the battery compartment on the back of the radio. Gently push until it clicks into place, ensuring a secure connection.
- Charging the Battery:
Connect the AC adapter to the desktop charger, then plug the adapter into a standard electrical outlet. Place the radio with the installed battery into the desktop charger. The charging indicator light will show the charging status. The radio can also be charged directly via its USB-C port using a compatible USB-C cable and power source.
- Antenna Attachment:
Screw the antenna clockwise onto the antenna connector located on the top of the radio until it is finger-tight. Do not overtighten.
- Belt Clip Attachment:
Attach the belt clip to the designated slots on the back of the radio for convenient carrying.

Figure 2: Front view of the Wouxun KG-S72C radio.
Operating Instructions
- Power On/Off:
Rotate the power/volume knob clockwise to turn the radio on. Continue rotating to adjust the volume. Rotate counter-clockwise until it clicks to turn the radio off.
- Channel Selection:
Use the channel selector knob or the up/down buttons to navigate through the 40 standard CB channels. The radio also supports up to 400 customizable memory channels.
- AM/FM Switching:
The KG-S72C supports both AM and FM operation. Refer to your owner's manual for specific instructions on how to switch between AM and FM modes, often configurable via a side key.
- Transmit (PTT) Button:
Press and hold the Push-To-Talk (PTT) button, located on the side of the radio, to transmit. Release the button to receive.

Figure 3: Side view showing the PTT button.
- VOX Function:
Voice Operated Exchange (VOX) allows for hands-free transmission. When enabled, the radio will transmit when it detects your voice. Consult the full owner's manual for VOX activation and sensitivity settings.
- CTCSS Tones and DCS Codes:
Continuous Tone-Coded Squelch System (CTCSS) and Digital Coded Squelch (DCS) help filter out unwanted conversations. These can be programmed for specific channels.
- Power Selectivity:
The radio supports high and low power output settings (up to 2 watts AM and 4 watts FM). Use low power for shorter distances to conserve battery life.
- Priority Channel Scan:
Activate the priority channel scan feature to monitor a designated priority channel while scanning other active channels.
- Monitor Function:
The monitor function allows you to temporarily disable the squelch to listen for very weak signals.
- Favorite Channels:
Quickly access emergency channels 9 and 19 using the dedicated Favorite Channels function.
- LCD Display:
The lighted LCD display shows the current channel name, number, or frequency, along with battery status and other indicators. It is designed for readability in various lighting conditions.
- Configurable Keys:
The two side keys and one top key can be configured for various functions, such as fast AM/FM switching or activating the built-in flashlight. Refer to the full owner's manual for customization options.
Maintenance
- Cleaning:
Wipe the radio's exterior with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners. Ensure the USB-C port cover is securely closed to maintain water resistance.
- Battery Care:
To prolong battery life, avoid fully discharging the battery frequently. Recharge the battery when the low battery indicator appears. Store the radio and battery in a cool, dry place when not in use for extended periods.
- Water and Dust Resistance:
The KG-S72C features IP65 dust and water resistance. While it is protected against dust ingress and low-pressure water jets, it is not designed for submersion. Always ensure all port covers are sealed when operating in dusty or wet environments.
Troubleshooting
If you encounter issues with your Wouxun KG-S72C, consider the following common troubleshooting steps:
- Radio does not power on:
Check if the battery is properly installed and fully charged. Ensure the power/volume knob is rotated clockwise to the 'on' position.
- No reception or poor audio:
Verify the antenna is securely attached. Check the volume level. Ensure you are on an active channel. The squelch level might be set too high; try using the monitor function.
- Cannot transmit or poor transmission range:
Ensure the PTT button is fully pressed. Check the battery level, as low battery can affect transmit power. Verify the antenna connection. Ensure you are on a clear channel and within range of the receiving station. Check the power selectivity setting (High/Low).
- Display is blank or unreadable:
Adjust the display brightness if available. If the display is completely blank, try restarting the radio or recharging the battery.
For more detailed troubleshooting or issues not covered here, please refer to the comprehensive owner's manual or contact Wouxun customer support.
Specifications
| Feature | Specification |
|---|---|
| Model Number | KG-S72C |
| Brand | Wouxun |
| Item Weight | 1.25 pounds |
| Package Dimensions | 7.65 x 7.3 x 3 inches |
| Battery Type | 1 Lithium Ion battery (included) |
| Battery Capacity | 2000mAh |
| Charging Port | USB-C |
| Number of Channels | 40 CB channels, 400 customizable memory channels |
| Frequency Range | 26.965 MHz - 27.405 MHz |
| Transmit Power | Up to 2 watts AM, 4 watts FM |
| Water Resistance Level | IP65 (Dust and Water Resistant) |
| Audio Connector | Kenwood 2-Pin (K1) |
| ASIN | B0CDP37FMX |
| Date First Available | August 4, 2023 |
| Manufacturer | QUANZHOU Wouxun Electronics Co., Ltd |
Warranty Information
The Wouxun KG-S72C Portable Handheld AM/FM CB Radio comes with a one-year manufacturer warranty from Wouxun. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims.
For specific warranty terms and conditions, refer to the detailed warranty statement included with your product or visit the official Wouxun website.
Customer Support
Should you require technical assistance, have questions about your radio's operation, or need to inquire about warranty service, please contact Wouxun customer support. Contact information can typically be found on the official Wouxun website or in the full owner's manual provided with your product.
When contacting support, please have your product model number (KG-S72C) and purchase details readily available.





