FCC ID: WVTWOUXUN29 Two-way Radio (CB radio)

Thank you for purchasing the Wouxun KG-S72C portable business radio. Your feedback makes our products better. Please share your thoughts. feedback@buytwowayradios.com www.buytwowayradios.com Contents Safety Information 8 FCC Licensing Information .........................................................................11 Getting Started 12 Feature Summary ..........................................................................................12 Whats Included ...........................................................................................13 Front Panel Guide ........................................................................................14 Right / Left Side Guide ...............................................................................15 Display Guide ...............................................................................................16 Dust and Water Protection ...........................................................................17 Installing and Removing the Battery ............................................................18 Charging the Battery ....................................................................................18 Antenna Information ....................................................................................20 Installing the Belt Clip .................................................................................21 Operation 22 2 Introducing the KG-S72C ............................................................................22 Your First Transmit .......................................................................................23 Channels and Privacy Codes.........................................................................24 Channel Scan ................................................................................................26 Priority Channel Scan ..................................................................................26 Programmable Key Functions .....................................................................27 Menu Functions 32

[01: SQUELCH] Squelch ............................................................................32

[02: MODE] Modulation Mode ..................................................................32

[03: TX-POWER] Output Power ................................................................32

[04: CH-DISP] Channel Display Mode ......................................................33

[05: BACK-LT] Active Backlight ................................................................33

[06: BAT-SAVE] Battery Saver....................................................................34

[07: RX-CTCSS] Receive CTCSS Tone .....................................................34 3

[08: RX-DCS] Receive DCS Code ..............................................................34

[09: TX-CTCSS] Transmit CTCSS Tone ...................................................35

[10: TX-DCS] Transmit DCS Code ............................................................35

[11: SCANMODE] Scan Mode ..................................................................36

[12: SCAN-QT] Tone Scanning Compatibility Check ...............................36

[13: SCAN-ADD] Scan Add / Delete .........................................................37

[14: PRI-SCAN] Priority Scan ....................................................................37

[15: PRI-CH] Priority Channel ...................................................................37

[16: TONESCAN] CTCSS/DCS Scanning ...............................................38

[17: TONESAVE] CTCSS/DCS Tone Save Options .................................38

[18: VOX] Voice Activated Transmit ............................................................39

[19: VOX-DLY] VOX Delay .......................................................................39

[20: TOT] Transmit Overtime Timer ..........................................................40

[21: TOA] Transmit Overtime Alarm ..........................................................40 4

[22: ROGER] Roger Beep ...........................................................................40

[23: BEEP] Button Beeps .............................................................................41

[24: VOICE] Voice Guide ............................................................................41

[25: BUSYLOCK] Busy Channel Lockout ..................................................41

[26: CH-NAME] Channel Name ................................................................42

[27: CH-FAV] Favorite Channel .................................................................42

[28: CH-ADD] Add Memory Channel .......................................................43

[29: CH-DEL] Delete Memory Channel ....................................................43

[30: STARTUP] Power On Message ...........................................................43

[31: ST-MSG] Custom Power On Message ................................................44

[32: TIMER] Stopwatch Timer ...................................................................44

[33: RPT-RCT] Squelch Tone .....................................................................45

[34: AUTOLOCK] Auto Lock ...................................................................45

[35: LOCKMODE] Lock Mode .................................................................46 5

[36: PF1-SHRT] Side Key PF1 Short Press Assignment ............................46

[37: PF1-LONG] Side Key PF1 Long Press Assignment ...........................46

[38: PF2-SHRT] Side Key PF2 Short Press Assignment ............................47

[39: PF2-LONG] Side Key PF2 Long Press Assignment ...........................47

[40: TOP-SHRT] Top Key Short Press Assignment ...................................48

[41: TOP-LONG] Top Key Long Press Assignment ..................................48

[42: VOLTAGE] Voltage .............................................................................48

[43: RESET] Factory Reset..........................................................................49 Advanced Operation 50 Setting Non-Standard CTCSS or DCS .......................................................50 Troubleshooting 52 Technical Information 54 Specifications ................................................................................................54 Standard CTCSS and DCS Tones ...............................................................56 6 Default CB Channels and Frequencies .........................................................58 Optional Accessories 59 Limited Warranty 60 7 Safety Information Safety Information The KG-S72C is an electrical apparatus, as well as a generator of RF (Radio Frequency) energy, and you should exercise all safety precautions as are appropriate for this type of device. Please read the suggestions and warnings below before using the transceiver. Keep the transceiver and accessories out of the reach of children. Do not disassemble the transceiver. Only use the supplied battery pack and charger or genuine Wouxun branded replacements purchased from an authorized dealer. Using improper batteries and charging accessories can damage the transceiver. The supplied antenna is tuned for the frequencies supported by this transceiver. Using an aftermarket antenna can damage the transceiver. Do not leave the transceiver exposed to direct sunlight or in overheated areas for an extended period of time. Keep the transceiver away from dusty or humid areas. 8 Safety Information Safety Information The transceiver should be cleaned with mild detergents and a soft brush or cloth. Avoid cleaning with aggressive chemicals. NEVER transmit without a properly connected antenna. If an abnormal odor or smoke is detected from the transceiver, power it off immedi-

ately, then remove the battery pack. Contact your dealer for further assistance. Notice These tips are important for safe operation of your KG-S72C radio and its accessories. If the transceiver does not function normally, please get in touch with your dealer immediately. If you use components or accessories not produced by the Wouxun Company, Wouxun will not guarantee the safety and usability of the transceiver. 9 Safety Information Caution Please read this manual before using the radio, as it includes important instructions for the safe handling, use and operation of your radio. FCC Compliance This device complies with Part 15 of the FCC Rules. Operation is subject to the follow-

ing two conditions:

(1) This device may not cause harmful interference, and

(2) This device must accept any interference received, including interference that may cause undesired operation. WARNING: MODIFICATION OF THIS DEVICE TO RECEIVE CELLULAR RADIOTELEPHONE SERVICE SIGNALS IS PROHIBITED UNDER FCC RULES AND US FEDERAL LAW. 10 Safety Information Safety Information Radio Operation and EME Exposure Use only an antenna designed for use with this radio and its operating frequencies. Un-

authorized modifications or attachments may damage the radio and violate FCC rules. DO NOT hold the antenna while the radio is in use. DO NOT attempt to use the radio with a damaged antenna. FCC Licensing Information The Wouxun KG-S72C is FCC Part 95D type accepted for use on the CBRS. The KG-S72C operates on CB Radio Service (CBRS) frequencies according to the Fed-

eral Communications Commission (FCC) Rules in the United States. CB radios are licensed by rule. As such, a license is not required to transmit on these frequencies. For more information, visit the FCCs web site at https://www.fcc.gov/. 11 Getting Started Getting Started Feature Summary Up to 256 Custom Channels 40 CB Channels AM and FM Modes Up to 2 Watts Output Power (AM) Up to 4 Watts Output Power (FM) 50 CTCSS Tones / 105 DCS Codes

(FM Mode) LCD Display Display Channel Name, Number, or Frequency IP65 Waterproof USB-C Charging Port Standard and Non-Std CTCSS/DCS

(FM Mode) 12 Channel Scan Priority Channel Scanning Channel Favorites Function Superheterodyne Receiver Monitor Function High/Low Power Selectable VOX English Voice Guide Built-in Flashlight 2 Configurable Side Keys Configurable Top Key PC Programmable Getting Started Getting Started Whats Included Carefully unpack the contents of the box and be sure that you have the items in the list below. If any items are missing or damaged, please contact your dealer. Transceiver High gain antenna Lithium-ion batterypack Intelligent charger Beltclip Handstrap Users manual 13 Getting Started Front Panel Guide Antenna Top Key Speaker Display Up Key Menu/Enter 4 Key Keypad 14 Channel Knob Volume Knob Flashlight RX/TX LED (Green/Red) Microphone Exit/Cancel Down Key Getting Started Getting Started Right / Left Side Guide Earphone Jack USB Charging Port Transmit/PTT Key PF1 Short Press: CH-FAV Long Press: SCAN PF2 Short Press: FLASHLIGHT Long Press: MONITOR Note: Defaults are shown for PF1 / PF2. These buttons can be assigned different functions in the menu. 15 Getting Started Display Guide Battery Save VOX CTCSS/DCS Current Channel DT/QT TX Power 16 Keypad Lockout Battery Voltage Channel Number Signal Strength Indicator Getting Started Getting Started Dust and Water Protection The KG-S72C is waterproof to IP65 standards. It is dust resistant and rated to with-

stand any ingress of solid objects. It can withstand direct jets of water projected by a nozzle (6.3 mm) against the enclosure for a limited period. This radio is dust and water-

proof only while the battery is properly installed and locked in place with no gaps and all ports are completely sealed with their port covers. Use of a headset or other accessory will negate the dust and waterproofing features of this radio. Do not attempt to operate this radio if it has been submerged in water. The radio charger is NOT dust or waterproof. Charge the radio only under dry conditions. DO NOT charge the radio when it is wet. DO NOT expose the radio and charger to wet environments when charging. 17 Getting Started Installing and Removing the Battery The lithium-ion battery pack included with the radio is not fully charged out of the box. It is recommended to charge it before using the radio for the first time. Installing the Battery Slide the battery pack up along the back of the radio until it stops. Then push the bot-

tom of the battery towards the radio until it clicks into place. Removing the Battery Pull the release latch toward the three battery contacts. While holding the release latch in place, press down on the top end of the battery pack and slide the battery pack down and off the radio. Charging the Battery The KG-S72C features two charging options for the battery pack. It can be charged using the included desktop charger or the built-in USB-C port on the side of the radio. 18 Getting Started Getting Started Charging with the Desktop Charger The KG-S72C includes an intelligent desktop charger. It can charge the battery pack with or without the radio attached. 1. Insert the AC plug into an available 100~240v outlet. The LED light on the charger base will flash red for 2-3 seconds. This indicates the charger is in standby mode. 2. Insert the battery or radio with the battery attached into the charger. The LED light on the charger will turn red to indicate the battery is charging. 3. When the LED light on the charger turns green, charging is complete. Note When a completely drained battery is first inserted into the charger, the charger will switch to trickle charge mode and the LED will flash red continuously. After 10-20 minutes the charger will switch to normal charging mode and the light will turn solid red. The LED will turn green when charging is complete. 19 Getting Started Charging with the USB-C Port The KG-S72C can charge the battery from the USB-C charging port on the side of the radio using an optional USB-C cable (not included). The battery pack can be fully charged with a USB cable connected to a USB to AC adapter plugged into an AC outlet or a to a USB port in a vehicle, power bank or computer. When the radio is connected to a power source through the USB-C charging port with a battery attached, the LED at the bottom of the port will light up red to indicate the battery is charging. The LED will turn green when charging is complete. In addition to the charging option, the radio can be powered directly via the USB-C port while charging battery pack. It can also operate on power supplied through the USB port with or without the battery attached. A larger screw is included to allow frequent removal of the USB port cover by hand. Antenna Information The KG-S72C includes an antenna with an SMA female connector that is tuned for the frequency range of your radio. Aftermarket antennas may be used, provided they 20 Getting Started Getting Started are tuned for this frequency range. An SMA Female to BNC adapter is included for connecting to mobile antennas. Warning: To avoid injury, DO NOT attempt to operate your radio if the antenna is damaged or defective. DO NOT attempt to operate your radio without an antenna connected to the radio. Transmitting without an antenna or a correctly tuned antenna directly and properly connected to the radio may damage the radio and void the warranty. Installing the Belt Clip The belt clip attaches to the back of the radio with the two supplied screws. To install the belt clip, press it against the back of the unit and line up the screw holes. Insert each screw one at a time and tighten until there is no further resistance and the belt clip is firmly attached to the radio. Do not overtighten the screws. 21 Operation Operation Introducing the KG-S72C The CB Radio Service (CBRS) is a two way radio service with considerable flexibility. CB radios can be used for personal or business applications. Users are allowed to trans-

mit on both AM (amplitude modulation) or FM (frequency modulation). No license is required to operate a CB radio. The KG-S72C was designed to take advantage of all that CB has to offer and more. It is easy to use with minimal setup by practically anyone, young or old. Right out of the box this radio is configured to transmit on the 40 CB channels in either AM or FM modes with no special programming required. This radio can also be customized. Using the KG-S72C programming software, you can assign your favorite CB radio frequencies with custom tones and settings to a total of 256 customized channels. Read this chapter to learn the basics of using your new KG-S72C radio, such as select-

ing a channel, transmitting and receiving, and scanning. 22 Operation Operation Power On/Off and Adjusting Volume Rotate the volume knob clockwise to power on the radio. To power off the radio, rotate the volume knob counter-clockwise until a click is felt. To adjust the volume, use the volume knob when the radio is powered on. Turning the knob clockwise increases the volume, counter-clockwise decreases it. Your First Transmit Selecting a Channel When you power on your KG-S72C for the first time, the screen will likely display CB-01 in the center with 001 on the right side. CB-01 is the name of the currently selected channel. 001 is the channel number. Turn the Channel Knob or the [UP] /

[DOWN] keys to navigate through the list of channels. As a CB user you are allowed to use any of the channels. The channel you choose isnt as important as making sure its the same channel the rest of your group is using. 23 Operation Transmitting and Receiving With a channel selected, the radio is actively listening for an incoming signal on that channel. When a signal is detected, the transmission will be heard through the radios speaker. Please note, the Squelch setting (page 32) determines how strong a signal needs to be in order to be detected. To transmit, first be sure the channel is clear and then hold the radio a few inches from your mouth. Hold down the PTT button on the side while talking and release the PTT when finished. For best performance and clarity of transmission, position the radio upright with the front of the radio facing you, hold it several inches away from your mouth and speak directly into the microphone during transmission. Channels and Privacy Codes Channels The KG-S72C is pre-configured with 40 CB channels, but allows users to create 24 Operation Operation additional channels as well and save them to a maximum of 256 custom channels with optional programming software. The KG-S72C can only transmit and receive on frequencies in the CB band. Privacy Codes The KG-S72C supports 50 CTCSS tones and 105 DCS codes in FM Mode, for a total of 155 privacy tones and codes. To successfully communicate between your stations or members of your group, all the connecting radios must be using the same channel and privacy (CTCSS or DCS) code. The KG-S72C supports both standard and non-standard CTCSS tones and DCS codes in FM Mode. These tones and codes can be enabled and configured in the [RX-

CTCSS], [RX-DCS], [TX-CTCSS] and [TX-DCS] menu options (pp 34-35). Instructions for entering non-standard tones and codes can be found in the Advanced Operations section of this manual (page 50). 25 Operation Channel Scan The KG-S72C has a channel scan feature, which is assigned to the [PF1] key by de-

fault. To activate Channel Scan, press and hold the [PF1] key for two seconds or until you hear Scan Begin. The radio will scan each channel for activity, starting from the current channel. Pressing the [UP] / [DOWN] keys while scanning will change the direction of the scan from low to high ([UP]) or high to low ([DOWN]). To stop the scan, press and hold the [PF1] key for two seconds or until you hear Scan Stop. Pressing the [PF2] or [TOP] key or turning the channel knob will also stop the scan. Refer to Scan Mode (page 36) for more information on the types of scans available. The scan function can also be assigned to the programmable PF1, PF2 or TOP buttons from the menu (page 46-48). Priority Channel Scan 26 Operation Operation The KG-S72C supports Priority Channel Scanning. With this feature a priority chan-

nel can be specified that is scanned much more frequently than other channels. This helps prevent missing all or part of a transmission when you are primarily concerned with a single channel. Priority Channel Scanning works by scanning your priority channel in between all other channels. For example, if your priority channel is 3 the radio would scan your channel list in the following order:

1323334353... To set a priority channel, use the [PRI-CH] menu item (page 37). To activate the Priority Channel Scanning feature, use the [PRI-SCAN] menu item (page 37). Individual channels can be added or removed from the scan list using the Scan Add

[SCAN-ADD] menu option (page 37). Programmable Key Functions The KG-S72C has two programmable keys called [PF1] and [PF2] located on the left side of the radio below the PTT key. It also has a programmable [TOP] key. Each key 27 Operation can perform two different functions, one activated with a short press and one with a long press. These functions can be assigned to the [PF1], [PF2] and [TOP] buttons from the menu (page 46-48). They can also be assigned via the programming software. Default Key Function PF1 Short PF1 Long PF2 Short PF2 Long MONITOR Description Activate backlight (page 29) Activate favorite channel (page 29) Scan function (page 25) Transmit power level (page 30) BACK-LT FAV-CH SCAN TXPOWER FLASHLIGHT Activate flashlight (page 29) Monitor channel (page 30) Switch AM or FM modes (page 32) Activate VOX (p 39) Key not assigned Key not assigned MODE VOX OFF OFF TOP Short TOP Long 28 Operation Operation Display Blacklight The KG-S72C allows you to activate the backlight for the display using a programma-

ble key. When activated, the backlight will remain on for the duration of the time set in the BACK-LT menu option (page 33). It can be assigned to the [PF1], [PF2] or

[TOP] key using the menu (page 46-48). Flashlight The KG-S72C has a built-in LED flashlight at the top of the radio. It is assigned to a short press of the [PF2] key by default, but can be disabled or otherwise assigned to the

[PF1], [PF2] or [TOP] key using the menu (page 46-48). Favorite Channels The KG-S72C allows you to access specific channels marked as favorite channels. When assigned to a programmable key, pressing that key will change channels to the next highest channel marked as Favorite. Pressing the key again will go to the next favorite channel on the list. When the highest channel is reached, the radio will cycle back to the first favorite channel on the list. If no channels are marked as favorites, 29 Operation pressing the key will produce an error beep. Channels 9 and 19 are favorite channels by default. The current channel can be activated or deactivated as a Favorite Channel by using the CH-FAV menu option (page 42). It is assigned to a short press of the [PF1] by de-

fault, but can be disabled or otherwise assigned to the [PF1], [PF2] or [TOP] key using the menu (page 46-48). Monitor The MONITOR function opens squelch on the current channel. This is useful when listening for weak transmissions. It is assigned to a long press of the [PF2] key by de-

fault, but can be disabled or otherwise assigned to the [PF1], [PF2] or [TOP] key using the menu (page 46-48). Transmit Power This function sets the transmit power of a channel on the radio. The transmit power can be set for each individual channel. The KG-S72C has two power optons: Low 30 Operation Operation

(2W) and High (4W). Wattage is approximate. It is preset to 2 watts on all channels and cannot be changed in AM mode, but can be toggled in FM Mode. This function is assigned to the [PF1], [PF2] or [TOP] key using the menu (page 46-48). 31 Menu Functions Menu Functions

[01: SQUELCH] Squelch Function: The squelch function mutes the speaker when no signal is detected. Adjusting the squelch sensitivity allows you to control how strong of a signal is required in order to unmute the speaker. Selecting a lower number will allow weaker signals to be heard, higher numbers require a stronger signal. Selecting [0]

will unmute the speaker at all times. Squelch is set independently for each area. Options: 0-9 Default: 5

[02: MODE] Modulation Mode Function: Sets the modulation mode of the radio. The radio can transmit and receive on AM or FM. This setting is specific to each channel. Options: FM/AM Default: AM

[03: TX-POWER] Output Power 32 Menu Functions Menu Functions Function: Sets the transmit power of the radio. The radio has two power optons: Low

(2W) and High (4W). Wattage is approximate. Note: the transmit power for CB channels in AM mode is limited to 2 watts and can be used on low power only. Options: HIGH/LOW Default: LOW

[04: CH-DISP] Channel Display Mode Function: Changes the way the the channel is displayed. Options: NAME/FREQ/NUMBER Default: NAME NAME: Channel Mode. Displays the channel name (Example: CB-01) FREQ: Channel Mode. Displays the channel frequency (Example: 26.965000) NUMBER: Channel Mode. Displays the channel number (Example: CH-001)

[05: BACK-LT] Active Backlight Function: Sets the timeout of the LCD display backlight while the radio is in standby. The timer can be set from 1-30 seconds in one second increments. It can also 33 Menu Functions be set to turn off imediately or always remain on. Options: OFF/1-30S/ALWAYS Default: 10 Seconds

[06: BAT-SAVE] Battery Saver Function: Activate the battery saver feature. When active, the radio will scan less fre-

quently for signals, improving battery life. Options: ON/OFF Default: ON

[07: RX-CTCSS] Receive CTCSS Tone Function: Sets the receiving CTCSS tone for the selected channel. Use the arrow keys to select your preferred code and then MENU to confirm. Available in FM Mode only. Options: OFF/50 CTCSS Tones Default: OFF

[08: RX-DCS] Receive DCS Code 34 Menu Functions Menu Functions Function: Sets the receiving DCS code for the selected channel. Short press the [PF2]

key to choose DCS+ or DCS- codes. Use the arrow keys to select your pre-

ferred code and then MENU to confirm. Available in FM Mode only. Options: OFF/105 DCS+ Codes/105 DCS- Codes Default: OFF

[09: TX-CTCSS] Transmit CTCSS Tone Function: Sets the transmitting CTCSS tone for the selected channel. Use the arrow keys to select your preferred code and then MENU to confirm. Available in FM Mode only. Options: OFF/50 CTCSS Tones Default: OFF

[10: TX-DCS] Transmit DCS Code Function: Sets the transmitting DCS code for the selected channel. Short press the

[PF2] key to choose DCS+ or DCS- codes. Use the arrow keys to select your preferred code and then MENU to confirm. Available in FM Mode only. Options: OFF/105 DCS+ Codes/105 DCS- Codes 35 Menu Functions Default: OFF

[11: SCANMODE] Scan Mode Function: Scan mode settings Options: TO/CO/SE Default: TO TO: When a signal is detected, scanning stops. Scan will pause to wait for further activity and will then resume if no operation is carried out within 5 seconds. Pressing PTT will transmit on the currently selected channel. CO: When a signal is detected, scanning stops and resumes immediately after the sig-

nal is lost. Pressing PTT will transmit on the currently selected channel. SE: When a signal is detected, scanning stops. Pressing PTT will transmit on the chan-

nel where the signal was detected.

[12: SCAN-QT] Tone Scanning Compatibility Check Function: Determines if the incoming transmissions are filtered by CTCSS/DCS tones during scan mode. Available in FM Mode only. Options: ON/OFF 36 Menu Functions Menu Functions Default: OFF

[13: SCAN-ADD] Scan Add / Delete Function: Add or remove a channel to/from the list of channels to scan. Options: ADD/DEL Default: ADD

[14: PRI-SCAN] Priority Scan Function: Activates scanning of the Priority Channel. During scan, the priority channel will be scanned more frequently. Read the Channel Scan section (page 26) to learn more. Options: ON/OFF Default: OFF

[15: PRI-CH] Priority Channel Function: Selects the priority channel. This is used during scanning when the Priority Scan (menu option 14) feature is enabled. To select a priority channel, use the 37 Menu Functions

[UP] and [DOWN] keys to select a channel number. Options: 256 channels Default: CH 001

[16: TONESCAN] CTCSS/DCS Scanning Function: Scans the incoming signal for CTCSS or DCS tones to identify or confirm the correct tone. This function must be activated while receiving a signal. Available in FM Mode only. Options: None. Choose the function and press [MENU] to activate the scan. Default: Note: The scan will stop when the signal ends and resume from where it left off the next time the signal is received, until it identifies the correct tone. Use the [UP]/[DOWN] arrow keys to scan in a different direction. Short press the [PF2] side key to toggle between standard CTCSS, positive DCS, and negative DCS tone list.

[17: TONESAVE] CTCSS/DCS Tone Save Options Function: This item determines how a CTCSS or DCS tone is saved to a channel after a CTCSS/DCS scan. Available in FM Mode only. 38 Menu Functions Menu Functions Options: BOTH/RX/TX Default: TX BOTH: Saves the scanned tone to both RX and TX settings. RX: Saves the scanned tone to the RX-CTCSS/DCS setting TX: Saves the scanned tone to the TX-CTCSS/DCS setting.

[18: VOX] Voice Activated Transmit Function: The VOX function allows you to transmit without pressing the PTT key. The VOX function will detect that you are speaking into the microphone and then automatically begin transmitting. VOX gain levels of 1-9 are provided to allow you to adjust the voice detection sensitivity. Options: OFF/1-9 (level) Default: OFF

[19: VOX-DLY] VOX Delay Function: Sets the number of seconds to delay turning off transmit after the VOX func-

tion no longer detects audio. Options: OFF/1-5 (seconds) 39 Menu Functions Default: 1S

[20: TOT] Transmit Overtime Timer Function: When the transmission time exceeds the time set by the Transmit Overtime Timer, the unit will emit an error prompt and stop transmitting. Options: 15-900 seconds (15 second increments) Default: 60 seconds

[21: TOA] Transmit Overtime Alarm Function: The Transmit Overtime Alarm warns when the Transmit Overtime Timer

(TOT) is about to be exceeded. The red TX indicator LED (top of the radio) flashes to indicate an alarm. The alarm can be set to a maximum time limit of 10 seconds and indicates the amount of time prior to the Transmit Overtime Timer expiring that the warning will begin. Options: OFF/1S-10S Default: OFF

[22: ROGER] Roger Beep 40 Menu Functions Menu Functions Function: Enables an audible roger beep prompt during transmission. Options: OFF/BOT/EOT/BOTH Default: OFF BOT: Sets the roger beep prompt at the beginning of transmission EOT: Sets the roger beep at the end of transmission BOTH: Sets the roger beep at the beginning and end of transmission

[23: BEEP] Button Beeps Function: Enables an audio prompt to alert the operator of a key press, input or fault. Selectable: ON/OFF Default: ON

[24: VOICE] Voice Guide Function: Enable or disable voice prompts. Options: OFF/ON Default: ON

[25: BUSYLOCK] Busy Channel Lockout 41 Menu Functions Function: Enabling Busy Channel Lockout prevents the transceiver from transmitting on a selected channel while another station or group is transmitting on it. Options: ON/OFF Default: OFF

[26: CH-NAME] Channel Name Function: Allows you to edit the name for the currently active channel. To edit a chan-

nel name, press [MENU] and choose the CH-NAME option. the name of the current channel will be in edit mode and the first character will flash to indicate it is currently being edited. Press the [UP] and [DOWN] keys to select the desired character, then press the [PF1] key to move to the next position. Press the [PF2] key to move back to the previous position. When you finish editing the name, press [MENU] to save. Options: 6 Characters Default: None

[27: CH-FAV] Favorite Channel Function: Select if the current channel should be marked as a favorite. Favorite chan-

42 Menu Functions Menu Functions nels can be activated quickly by using the FAV-CH function. This feature is assigned to the [PF1] key by default. Channels 9 and 19 are favorite chan-

nels by default. Options: YES/NO Default: NO

[28: CH-ADD] Add Memory Channel Function: Adds a channel to the memory channel list. Options: None Default: None

[29: CH-DEL] Delete Memory Channel Function: Deletes a channel from the memory channel list. Options: None Default: None

[30: STARTUP] Power On Message Function: Select the item displayed when the radio is powered on. 43 Menu Functions Options: MESSAGE/VOLTAGE Default: MESSAGE MESSAGE: Customized Message VOLTAGE: Battery voltage

[31: ST-MSG] Custom Power On Message Function: Allows you to customize the Power On Message. To edit the message, press

[MENU] and choose the ST-MSG option. the current message will be in edit mode and the first character will flash to indicate it is currently being edited. Press the [UP] and [DOWN] keys to select the desired character, then press the [PF1] key to move to the next position. Press the [PF2] key to move back to the previous position. When you finish editing the message, press [MENU] to save. Options: 8 Characters Default: None

[32: TIMER] Stopwatch Timer Function: Activates the timer feature. If ON, activate the timer by short pressing 44 Menu Functions Menu Functions

[EXIT] in standby mode. Press [MENU] to stop the timer. Press the

[EXIT], [UP] or [DOWN] keys to exit the timer. Options: ON/OFF Default: OFF

[33: RPT-RCT] Squelch Tone Function: Enables or disables the squelch tail sent to the receiving radio at the end of a transmission. Options: OFF/ON Default: ON

[34: AUTOLOCK] Auto Lock Function: Automatically locks the keypad after a specified time. This can be set from 10 to 60 seconds, in 10 second increments. Options: OFF/10-60S Default: OFF Note: To unlock the radio, hold the [EXIT] key for 2 seconds. 45 Menu Functions

[35: LOCKMODE] Lock Mode Function: Select which keys are disabled when the radio is locked. Options: KEY/KEY+PTT/KEY+ENC/ALL Default: KEY KEY: Locks the front keypad and [PF1] and [PF2] side keys. KEY+PTT: Locks the front keypad, [PF1], [PF2] and [TOP] keys, and [PTT]. KEY+ENC: Locks the front keypad, [PF1] and [PF2] side keys, and channel knob. ALL: Locks the front keypad, [PF1], [PF2], [TOP] keys, [PTT], and channel knob. Note: To lock or unlock the radio, hold the [#LOCK] key for 2 seconds.

[36: PF1-SHRT] Side Key PF1 Short Press Assignment Function: Assigns a function to the [PF1] side key. A function is assigned to a short button press. Options: OFF/BACK-LT/SCAN/TXPOWER/FLASHLT/MONITOR/VOX/FAV-

CH/MODE Default: BACK-LT

[37: PF1-LONG] Side Key PF1 Long Press Assignment 46 Menu Functions Menu Functions Function: Assigns a function to the [PF1] side key. A function is assigned to a long button press. Options: OFF/BACK-LT/SCAN/TXPOWER/FLASHLT/MONITOR/VOX/FAV-

CH/MODE Default: SCAN

[38: PF2-SHRT] Side Key PF2 Short Press Assignment Function: Assigns a function to the [PF2] side key. A function is assigned to a short button press. Options: OFF/BACK-LT/SCAN/TXPOWER/FLASHLT/MONITOR/VOX/FAV-

CH/MODE Default: FLASHLT

[39: PF2-LONG] Side Key PF2 Long Press Assignment Function: Assigns a function to the [PF2] side key. A function is assigned to a long button press. Options: OFF/BACK-LT/SCAN/TXPOWER/FLASHLT/MONITOR/VOX/FAV-

CH/MODE 47 Menu Functions Default: MONITOR

[40: TOP-SHRT] Top Key Short Press Assignment Function: Assigns a function to the [TOP] key. A function is assigned to a short button press. Options: OFF/BACK-LT/SCAN/TXPOWER/FLASHLT/MONITOR/VOX/FAV-

CH/MODE Default: OFF

[41: TOP-LONG] Top Key Long Press Assignment Function: Assigns a function to the [TOP] key. A function is assigned to a long button press. Options: OFF/BACK-LT/SCAN/TXPOWER/FLASHLT/MONITOR/VOX/FAV-

CH/MODE Default: OFF

[42: VOLTAGE] Voltage Function: Displays the current battery voltage. 48 Menu Functions Menu Functions Options: None Default: None

[43: RESET] Factory Reset Function: Resets the transceiver to factory defaults. Options: VFO/ALL Default: VFO VFO: Resets function settings to factory defaults but retains channel parameters. ALL: Resets all of the function settings and channel parameters to factory defaults. 49 Advanced Operation Advanced Operation Setting Non-Standard CTCSS or DCS Standard and non-standard CTCSS tones and DCS codes are available in FM Mode only. How to Set Non-Standard CTCSS The KG-S72C supports non-standard CTCSS tone in the range of 65.0-255.0Hz with a minimum spacing of 0.1Hz. CTCSS tones are enabled and assigned to a channel using the user programming software. For example, to set the receiving CTCSS tone to 100.5Hz:

In the programming software, select the desired channel row and choose the RX-

CTCSS column. Highlight the current tone, press the backspace key to remove it, enter 100.5 using your computer keyboard and press return. How to Set Non-Standard DCS The KG-S72C supports non-standard DCS codes ranging from 000-766, except any 50 Advanced Operation Advanced Operation code with the digit 8 or 9. For example, 680.719 is not a legitimate non-standard DCS code. DCS codes are enabled and assigned to a channel using the user programming software. When entering a non-standard DCS code, add the letter I after the code number to set it as a positive code or the letter N to set it as a negative code. Example 1: Set the receive DCS as D105N In the programming software, select the desired channel row and choose the RX-DCS column. Highlight the current code, press the backspace key to remove it, enter D105N using your computer keyboard and press return. Example 2: Set the receive DCS as D105I In the programming software, select the desired channel row and choose the RX-DCS column. Highlight the current code, press the backspace key to remove it, enter D105I using your computer keyboard and press return. 51 Troubleshooting Troubleshooting Before assuming your KG-S72C is defective, please check the following list of possi-

ble problems and solutions. The RESET option provided in the menu can be used to restore factory standard settings and programming, and will often solve issues. Problem Receive indicator is on but no sound is heard. Keypad is unresponsive Unwanted interference is being received Solution Check volume level. Disable CTCSS/DCS or be sure setting matches incoming transmission. Check squelch settings. Check if keypad has been locked. Check if other keys are currently pressed Enable CTCSS or DCS tone to filter out unwanted transmissions. Use a different channel Transceiver transmits with-

out PTT being pressed Check if the VOX hands-free mode is active. If inten-

tionally using VOX mode, adjust the sensitivity level. 52 Troubleshooting Troubleshooting Problem Cannot power on Battery life lower than expected Solution Check that the battery pack is attached correctly. Check that the battery pack is fully charged. Be sure the charger indicates the battery is fully charged. The battery pack capacity will naturally diminish over a number of charge cycles. This is the case with all lithium batteries. 53 Technical Information Technical Information Specifications Entire Radio Frequency Range 26-27 MHz Memory Channels 256 Frequency Stability 2.5 PPM Work Temperature

-30C~+60C / -22F~140F Antenna Impedance 50 Power Supply 7.4VDC Weight Size 8.32oz / 236g 4.53 2.14 1.36 (in) / 115 54.3 34.6 (mm) Dust/Waterproof IP65 54 Technical Information Technical Information Receiver Transmitter Adjacent Channel Selectivity Inter-modulation Resistance Audio Response Audio Distortion Output Power Sensitivity 60dB 65dB 84dB

+1~3dB

(0.3~3KHz) 5%

500mW 0.16V

(12dB SINAD) RF Carrier Power 2W (AM) / 4W (FM) Adjacent Channel Power 60dB Spurious

-30dBm Audio Modulation Max Frequency Offset Frequency Stability Modulation Distortion

+3dB

(0.3~2.55KHz) 2.5KHz 2.5ppm 10%

55 Technical Information Standard CTCSS and DCS Tones The following is a list of the standard CTCSS and DCS tones supported by the KG-S72C in FM Mode. Many radios display a number instead of a specific tone. The number to the left of the tone matches what is used by some manufacturers. 56 Technical Information Technical Information DCS codes ending in N are positive. Negative DCS codes end in I. The KG-S72C includes 105 positive and 105 negative codes. D023N D025N D026N D031N D032N D036N D043N D047N D051N D053N D054N D065N D071N D072N D073N D074N D114N D115N D116N D122N D125N D131N D132N D134N D143N D145N D152N D155N D156N D162N D165N D172N D174N D205N D212N D223N D225N D226N D243N D244N D245N D246N D251N D252N D255N D261N D263N D265N D266N D271N D274N D306N D311N D315N D325N D331N D332N D343N D346N D351N D356N D364N D365N D371N D411N D412N D413N D423N D431N D432N D445N D446N D452N D454N D455N D462N D464N D465N D466N D503N D506N D516N D523N D526N D532N D546N D565N D606N D612N D624N D627N D631N D632N D645N D654N D662N D664N D703N D712N D723N D731N D732N D734N D743N D754N 57 Technical Information Default CB Channels and Frequencies The following channels are pre-programmed to default CB frequencies. Ch CB-01 CB-02 CB-03 CB-04 CB-05 CB-06 CB-07 CB-08 CB-09 CB-10 Ch Frequency 26.96500 CB-11 26.97500 CB-12 26.98500 CB-13 27.00500 CB-14 27.01500 CB-15 27.02500 CB-16 27.03500 CB-17 27.05500 CB-18 27.06500 CB-19 27.07500 CB-20 58 Ch Ch Frequency Frequency Frequency 27.08500 CB-21 27.21500 CB-31 27.31500 27.10500 CB-22 27.22500 CB-32 27.32500 27.11500 CB-23 27.25500 CB-33 27.33500 27.12500 CB-24 27.23500 CB-34 27.34500 27.13500 CB-25 27.24500 CB-35 27.35500 27.15500 CB-26 27.26500 CB-36 27.36500 27.16500 CB-27 27.27500 CB-37 27.37500 27.17500 CB-28 27.28500 CB-38 27.38500 27.18500 CB-29 27.29500 CB-39 27.39500 27.20500 CB-30 27.30500 CB-40 27.40500 Optional Accessories Optional Accessories Optional Accessories Optional Accessories Shop Wouxun Accessories:

www.buytwowayradios.com/accessories/by-radio-brand/wouxun-radio-accessories.html 59 Limited Warranty Limited Warranty We warrant this product against defects in material and workmanship as follows:

Radio and its original primary components for a period of one (1) year from date of purchase. Accessories (including battery, charger, belt clip, antenna and adapter) for a period of six

(6) months from date of purchase. This warranty is limited to the repair and replacement of the defective components and is not valid if the radio has been tampered with, misused, abused, used with unapproved accessories, subjected to unauthorized disassembly, unauthorized repair, replacement of unauthorized parts, unavoidable conditions, human destruction, water damage or envi-

ronmental damage. This warranty is void if the serial number is defaced or altered. If service, repair or replacement is required within the warranty period, such repair or replacement will be made free of charge by the dealer through whom the equipment was purchased. If the owner requires any service or repair from any dealer through whom the equipment was not purchased, the cost of repair must be made by the owner. This warranty is valid for the original purchaser or owner of the product and is not 60 Limited Warranty Limited Warranty transferable. THIS LIMITED WARRANTY IS THE ENTIRE WARRANTY FOR THIS PRODUCT AND IS IN LIEU OF ALL OTHER WARRANTIES, EITHER EX-

PRESSED OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANT-

ABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THIS WARRAN-

TY DOES NOT COVER OR PROVIDE FOR THE REIMBURSEMENT OR PAYMENT OF ANY DAMAGES, INCLUDING INCIDENTAL OR CONSE-

QUENTIAL DAMAGES RELATED TO THE USE OF THIS PRODUCT. Some states do not allow this exclusion or limitation of damages so the above limitation or exclusion may not apply to you. This warranty is valid only within the United States of America. Note: Product features, specifications and warranty terms are subject to revision by the manufacturer without notice. We are not responsible for unintentional errors or omis-

sions on product packaging. 61

antenna Label Location

@wouxun Model : KG-S72C Frequency: 26.965-27.405MHz SIN: XXXXXXXXX Fe FCC ID:WVTWOUXUN29 4 MADE IN CHINA Emm WARNING: MODIFICATION OF THIS DEVICE TO RECEIVE CELLULAR RADIO TELEPHONE. i SERVICE SIGNALS IS PROHIBITED UNDER, back of radio body FCC RULES AND FEDERAL LAW. ,

Od Quanzhou Wouxun Electronics Co., Ltd. Confidentiality Request Letter Federal Communications Commission Authorization and Evaluation Division FCC ID: WVTWOUXUN29 Pursuant to Sections 0.457 and 0.459 of the Commissions Rules, we hereby request confidential treatment of information accompanying this application as outlined below:

Block Diagram Schematics Operational Description Tune-up procedure Parts list oP Nn The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Rule 0.457, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Laan (hon Name: Danny Chen Title: Manager Email: wouxun@wouxun.com Date: 2022-3-9

Quanzhou Wouxun Electronics Co., Ltd. Short Term Confidentiality Request Letter Federal Communications Commission Authorization and Evaluation Division FCC ID: WVTWOUXUN29 Pursuant to sections 0.457 and 0.459 of CFR 47 Commissions policy and to avoid premature release of sensitive information prior to marketing or release of the product to the public, the applicant requests the following documents contained in this certification application be temporarily withheld from public disclosure for an initial period of 180 days:

1. External Photos 2. Internal Photos 3. Test Setup Photos 4. User Manual The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Rule 0.457, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Danny Na Name: Danny Chen Title: Manager Email: wouxun@wouxun.com Date: 2022-2-15

Quanzhou Wouxun Electronics Co., Ltd. Add: Jiangnan High Technology Industry Park, No.928 Nanhuan Road, Quanzhou, Fujian, China Tel: 86-595-28051265 Fax: 86-595-28051267 Email: wouxun@wouxun.com DECLARATION OF SIMILARITY Dear Sir or Madam:

We, Quanzhou Wouxun Electronics Co., Ltd., hereby declare that the product:

TWO WAY RADIO(CB Radio) , FCC ID: WVTWOUXUN29, models as following:

KG-S72CX, KG-S72C-GY, KG-S72C-OR, KG-S72C Plus, KG-S72C Limited Edition, KG-S73C, KG-S73CX are electrically identical with the model:

KG-S72C which was tested by MRT Technology (Suzhou) Co., Ltd with the same electromagnetic emissions and electromagnetic compatibility characteristics. A description of the differences between those models and that are declared similar are as follows:

They are the similar products with the same diagram and mainboard, and just the different model names and Plastic Enclosure. Please contact me should there be need for any additional clarification or information. Best Regards, Signature:

Printed Name: Danny Chen Title: Manager

Quanzhou Wouxun Electronics Co., Ltd. Declaration of Authorization We Name: Quanzhou Wouxun Electronics Co., Ltd. Address: Jiangnan High Technology Industry Park, No.928 Nanhuan Road, Quanzhou, Fujian, China Declare that:

Name Representative of agent: | Marlin Chen Agent Company name: MRT Technology (Suzhou) Co., Ltd Address: D8 Building, Youxin Industrial Park, No.2 Tian'edang Rd., Wuzhong Economic Development Zone City: Suzhou Country: China is authorized to apply for Certification of the following product(s):

Product: Two-way Radio (CB radio) FCC ID: WVTWOUXUN29 Model No.: KG-S72C, KG-S72CX, KG-S72C-GY, KG-S72C-OR, KG-S72C Plus, KG-S72C Limited Edition, KG-S73C, KG-S73CX Sincerely, finny Uhow Name: Danny Chen Title: Manager Email: wouxun@wouxun.com Date: 2022-2-15

Quanzhou Wouxun Electronics Co., Ltd. Declaration of Conformity Federal Communications Commission Authorization and Evaluation Division FCC ID: WVTWOUXUN29 Please be notified that we, the undersigned, Quanzhou Wouxun Electronics Co., Ltd. declares that the product which bears the above FCC ID is also compliant with the FCC requirements for sDOC. And the sDOC procedure shall be carried out prior to marketing the device in the US. Sincerely, ana Chow Name: DannyChen Title: Manager Email: wouxun@wouxun.com Date: 2022-2-15

Quanzhou Wouxun Electronics Co., Ltd. Statement for Label Requirement Date: March 9, 2022 compartment. We state that the label of our device, FCC ID: WVTWOUXUN29 will be put in the battery The label is visible to the users when installing the battery. The Labe will be visible to the end user at time of purchase, as the battery is kept separate in the packing box. Sincerely, Name: Danny Chen Title: Manager Email: wouxun@wouxun.com Date: 2022-3-16