Rugged Radios GMR2-PLUS User Manual

FCC NOTICE

The GMR2-PLUS operates on GMRS (General Mobile Radio Service) frequencies, which require a Federal Communications Commission (FCC) license. You must be licensed prior to operating on channels 1-7, 15-22 or RP15-22 which comprise the GMRS channels of the GMR2. Serious penalties may result from unlicensed use of GMRS channels, in violation of FCC rules, as stipulated in the Communications Act's Sections 501 and 502 (amended). You will be issued a call sign by the FCC that should be used for station identification when operating your radio on GMRS channels. You should also cooperate by engaging in permissible transmissions only, avoiding channel interference with other GMRS users, and being prudent with the length of your transmission time.

To obtain a license or ask questions about the license application, contact the FCC at 1-888-CALL-FCC or go to the FCC's website: http://www.fcc.gov and request Form 605.

CE K FC RoHS

Contents

• User Safety Information
• Package Includes
• Charging Your Battery Pack
• Accessories Connections
• Getting Acquainted
• Working Mode
• Menu
• Detailed Function Description
• Standard GMRS Channels
• GMRS Repeater Channels
• GMRS Tone Codes
• DCS Digital Tone Codes
• Advanced Functions
• Channel List
• Specifications

User Safety Information

• Please read the following brief instructions; non-compliance with these rules may cause danger or violate the law.
• Obey the local government regulation before using this radio; improper use may violate the law and be punished.
• Turn off the radio before entering flammable or explosive areas.
• Do not charge or change the battery in flammable or explosive areas.
• Turn off the radio before getting close to the blasting zone or detonator areas.
• Do not use the radio if its antenna is damaged; touching a damaged antenna will cause heat injury.
• Do not attempt to open the radio; maintenance work should be done by technical experts only.
• To avoid issues caused by electromagnetic interference or electromagnetic compatibility, please turn off the radio in places where a banner displays “Do not use wireless equipment”, such as hospitals and other healthcare locations.
• In vehicles, do not put the radio within the area of airbag deployment.
• Do not store the radio under direct sunshine or in hot areas.
• When you transmit with the radio, keep at least 5cm away from its antenna.
• If the radio appears defective or starts to smoke, shut off its power immediately and contact your local dealer.
• Do not transmit for too long, as the radio may overheat and cause injury.

Package Includes

Please check for any damage to the package upon receipt. Carefully unpack the transceiver. We recommend checking the items listed in the following table. If any items are missing or damaged during shipment, please contact your local dealer immediately.

• Radio Unit x 1
• Antenna
• Li-ion Battery (1400mAh)
• Charging Kit
• Belt Clip
• User Manual

Charging Your Battery Pack

Charging Preparation

Precaution: The supplied battery pack is a high-performance Li-ion with 7.4V standard voltage and 1400mAh capacity in a compact package. Under normal use, the battery pack can be used for approximately 500 charge cycles or more, after which operating time may decrease. If you have an old battery pack with diminished capacity, replace it with a new one.

• Do not short-circuit the battery terminals or expose to fire. Do not disassemble the battery.
• Charge the battery between 32°F and 113°F. The battery cannot normally be charged outside this temperature range.
• Turn off the transceiver when charging. Transmitting while charging affects normal charging.
• Do not unplug the Power Adapter or battery while charging.
• If the battery does not hold its charge, it indicates the battery is depleted; please change the battery pack.
• Do not charge when the battery or radio is wet. Dry with a cloth and ensure it is fully dry before charging to avoid danger.

Warning: When conductive metals like jewelry, keys, or decorative chains touch the battery terminals, they can cause damage to items or personal injury. These conductive metals can form a short circuit and generate heat. Handle the battery carefully, especially when placed in a pocket or metallic container.

Charging Operation

After installing the battery pack, if the battery icon shows [ ] , it means the battery pack is out of power. Please charge it.

Charging indicator light conditions:

Battery Tips

• The battery is not fully charged at the factory; please charge it before use.
• Charge and discharge the battery two or three times to reach optimal capacity. When the battery capacity is low, charge or change the battery.
• If the battery lasts a short time even when fully charged, it is depleted; contact your local dealer for a new battery.

Accessories Connections

Battery Pack

1. Align the two grooves of the battery with the guide rail on the back of the aluminum shell, ensuring full contact and parallel alignment. Push the battery up to the radio base along the rail until the battery latch locks. (See Picture 1)
2. To remove the battery, ensure the radio is off. Push the battery latch down, ensuring the radio and battery are in the releasing state, then push the battery out from the radio. (See Picture 2)

Picture 1: Illustration showing battery attachment to the radio.

Picture 2: Illustration showing battery removal from the radio.

Belt Clip

Align the two holes of the belt clip with the two holes on the radio. Secure them with the supplied M2.5x5 screws. Loosen the screw set to remove the belt clip. (See Picture 5)

Picture 5: Illustration showing belt clip attachment to the radio.

External Microphone/Speaker

Open the cover of the microphone/speaker jack and insert the microphone/speaker plugs into the jack. (See Picture 6)

• Using an external headset or mic/speaker will affect the radio's water-tightness performance.

Picture 6: Illustration showing connection of an external microphone/speaker.

Getting Acquainted

Front Panel Operation

Antenna: For transmitting and receiving signals.

Indicator: Shows radio status (e.g., transmitting, receiving).

Speaker: Outputs audio.

Function/Enter Key [F]: Enters menu mode or confirms settings.

Numeral Key: Used for inputting numbers and channel selection.

Power/Volume Button: Turns the radio on/off and adjusts volume.

Microphone: Captures audio for transmission.

LCD Display: Shows channel, status, and menu information.

A/B Switch Key/Exit: Switches between A/B frequencies or exits menus.

Side Panel Operation

Flashlight: Quick press [MONI] then the flashlight button turns it on/off.

PTT (Push-to-Talk): Press to transmit; release to receive after transmission is complete.

MONI: Hold [MONI] to temporarily mute squelch, allowing reception of very weak signals.

Accessory/Programming Port: This jack provides connection points for microphone audio, earphone audio, speaker, and programming cable.

LCD Display

The LCD displays various icons indicating the radio's status. The following table explains the icons:

Keypad Functions

Channel Shortcuts

To shortcut to any channel in the preset channel list, enter the three digits of the channel's position in the preset channel list.

EX: CH. 15 is the 43rd channel in the preset channel list. To shortcut to CH. 15, press: [0] + [4] + [3]

Working Mode

Frequency Mode (LSO)

Under this mode, you can use [^] / [v] to change the frequency or input the frequency directly by keypad.

FM Radio Mode

The transceiver provides FM radio frequencies from 88.00-108.00MHz. In this mode, you can scan frequency ranges and select the desired FM frequency directly. Long press [MODE] to enter and exit FM radio mode.

Menu Mode

Press the [F] key to enter MENU mode. There are 15 items in total. Please refer to the SET MENU MODE section.

Menu

Menu Operation

1. Under Standby Mode, press [F] to enter menu setting; the LCD displays “MENU”.
2. Press [^] or [v] to select the desired menu item. The LCD displays the current setting of the selected item.
3. Press [F] to enter and then press [^] or [v] to select the desired setting.
4. Press [F] to confirm.
5. Press [A/B] once or twice to exit and return to standby mode.

Detailed Function Description

1. Scan (SCAN—MENU 1)

Functions: Under LSO/CH mode, the transceiver allows scanning of the entire current operating band and memory channels.

Enter MENU 1 and press [^] key to start scanning. When scanning, press [^] / [v] to change direction. Scanning halts on encountering a signal; press [F] to stop scanning.

Scanning operation is similar across modes. Select how you want the scanner to halt on a signal before beginning.

2. Squelch Adjustment (SQUELCH—MENU 2)

Functions: The squelch system mutes background noise when no signal is received. This makes standby operation more pleasant and significantly reduces battery current consumption.

Enter MENU 2 to set SQL level. Default: 3

3. Dual Watch/Standby (MONITOR—MENU 3)

Functions: This transceiver allows receiving sub-band signals even while operating on the main band. It can monitor signals on both master and sub-bands simultaneously.

Enter MENU 3 to set MONITOR. Default: ON

4. LED Display Mode (BACKLIGHT—MENU 4)

Functions: Selects the LED/Keypad Lamp mode.

Enter MENU 4 to select LED display mode. Default: AUTO

5. Background Light Level (DIMMER—MENU 5)

Functions: Choose the LED background light level.

Enter MENU 5 to select background light level. Default: 7

6. Keypad Beeper Setting (BEEP—MENU 6)

Functions: Enables/disables the keypad beeper.

Enter MENU 6 to set keypad beeper. Default: ON

7. Transmit Over Beeper (ROGER BP—MENU 7)

Functions: Sends a beeper to inform the receiver that the transmission is over.

Enter MENU 7 to set SQL level. Default: OFF

8. Auto Lock (AUTOLK—MENU 8)

Functions: To prevent accidental frequency changes or inadvertent transmissions, various aspects of the radio's keys and switches can be locked.

9. Voice Prompt (VOICE—MENU 9)

Functions: Enables/disables voice prompts.

Enter MENU 9 to set VOICE. Default: ON

10. Battery Power Voltage (VLT—MENU 10)

Functions: Check battery voltage.

Enter MENU 10 to check battery voltage.

11. TX/RX Tone Coder, Tone Search Scanning, Tone Calling (C-CDC—MENU 11)

Function 1: CTCSS/DCS Operation. Many repeater systems require a very-low-frequency audio tone superimposed on the FM carrier to activate the repeater. This helps prevent false activation by radar or spurious signals from other transmitters. Use the lock button to switch between CTCSS-DCS-OFF. Use the arrow buttons to scroll through tone codes. To toggle between numbered tone codes (e.g., 22) and actual tone codes (e.g., 141.3), press [5] when in the tone code menu.

Enter MENU 11 to set C-CDC Tone Coder.

12. RX Tone Coder, Tone Search Scanning, Tone Calling (R-CDC—MENU 12)

Function 1: CTCSS/DCS Operation. Many repeater systems require a very-low-frequency audio tone superimposed on the FM carrier to activate the repeater. This helps prevent false activation by radar or spurious signals from other transmitters.

Enter MENU 12 to set R-CDC Tone Coder.

13. TX Tone Coder, Tone Search Scanning, Tone Calling (T-CDC—MENU 13)

Function 1: CTCSS/DCS Operation. Many repeater systems require a very-low-frequency audio tone superimposed on the FM carrier to activate the repeater. This helps prevent false activation by radar or spurious signals from other transmitters.

Enter MENU 13 to set T-CDC Tone Coder.

14. Scrambler (SCRAMBLER—MENU 14)

Functions: Only the 2/5 tone version has this function. This transceiver has 8 groups of scramblers. It is accomplished by adding components to the original signal to make extraction difficult. Its voice command technology enhances voice clarity in noisy environments.

Enter MENU 14 to set scrambler group.

*Only radios with firmware GM1.51 and later are equipped with this feature. For info on updating firmware, call (888) 541-7223.

Standard GMRS Channels

GMRS Repeater Channels

GMRS Tone Codes (CTCSS Analog Tone Codes)

This is the number you toggle to on your radio!

Codes 38-51 may not be supported by other brand GMRS radios.

To toggle between numbered tone codes [EX: 22] and actual tone codes [EX:141.3], press [5] when in tone code menu. Only radios with firmware GM1.51 and later are equipped with this feature. For info on updating firmware, call us at: (888) 541-7223

VISIT RUGGEDRADIOS.COM TO LEARN MORE ABOUT OUR INDUSTRY LEADING GMRS RADIOS

DCS Digital Tone Codes

Codes 84-104 may not be supported by other brand GMRS radios.

To toggle between numbered tone codes [EX: 22] and actual tone codes [EX:141.3], press [5] when in tone code menu. Only radios with firmware GM1.51 and later are equipped with this feature. For info on updating firmware, call us at: (888) 541-7223

VISIT RUGGEDRADIOS.COM TO LEARN MORE ABOUT OUR INDUSTRY LEADING GMRS RADIOS

Advanced Functions

1. Keypad Lock Setting

Under standby mode, press [] for 2 seconds to lock and unlock the keypad. [] will be displayed at the top of the LCD when the keypad is locked.

2. FM Radio Function

On/Off Radio Receiver: Under standby mode, hold [MODE] to open FM radio functions. The LCD will display "90.400”, then tap [MODE] again to turn off the radio's receiver.

Mode Selection: Under FM radio mode, hold [MODE] to switch between FM memory mode and FM frequency mode (this function is unavailable if there is no FM memory channel).

Frequency Selection: Under FM frequency mode, input digits directly by keypad or use [^] / [v] to choose the desired frequency. Under FM memory mode, press [^] or [v] to choose the desired channel.

Channel List

Specifications

General

Transmitter

Receiver

Notes