Radtel RT-910/RT-910B Two Way Radio

Radio Buttons & Knobs

Antenna: Connects to the radio for signal transmission and reception.

Power Knob/Indicator Light: Turns the radio on/off and indicates power status.

PTT Button: Press to transmit audio.

PF2 Button: Short press to turn on FM RADIO, long press to switch High/Middle/Low power.

PF3 Button: Short press to SEEK frequency from nearby radio, long press to open squelch.

Numeric Keypad: Used for inputting frequencies, channel numbers, and menu options.

Speaker: Outputs audio.

Headphone Jack: For connecting external headphones.

Microphone Jack: For connecting an external microphone.

Type-c charger port: For charging the device.

Keypad Functions

Switch channel and frequency mode: Use VFO/MR button.

A/B Band selection: Use A/B button.

Menu/Confirm button: Use [=ok] button.

Exit/Back Button: Use [EXIT] button.

Long press to enter Scanning: Press and hold button 1.

Long press to enter shortcut button: Press and hold specific number keys.

Long press to edit DTMF: Press and hold the '*' key.

Long press to activate FM RADIO: Press and hold the '0' key.

Short press to switch Talk around/Reverse frequency: Press the T/R button.

Short press to select zone numbers: Use UP/DOWN keys.

Long press to lock keypad: Press and hold the '#' key.

Shortcut Keys Combination

LCD Display and Menu Content

The LCD displays information such as current frequency, channel name, zone, signal strength (RSSI), battery status, and active band (A or B).

Icons:

• CT: Analog Sub-audio Tone Indicator
• DCS: Digital Sub-audio Tone Indicator
• H: High Power Indicator
• M: Medium Power Indicator
• L: Low Power Indicator
• N: Narrowband Mode Indicator
• W: Wideband Mode Indicator
• +: Frequency Mode (+ Frequency Offset)
• -: Frequency Mode (- Frequency Offset)
• R: Frequency/Channel Mode Inverted Frequency
• T: Simplex Mode
• SC: Encryption Indicator
• AM: AM Modulation Indicator
• SCR: Scrambler Function
• VOX: VOX (Voice-Operated Transmission)
• DW: Dual Standby
• MO: Monitor Function Enabled
• STE: Side Tone Enabled
• [Keypad Lock Icon]: Keypad Lock Indicator
• RSSI: Signal Strength Indicator
• A/B: A/B Band Indicator
• VOL: Transmit Audio Volume Indicator
• [Battery Icon]: Battery Status Indicator

Menu Function Operation Instructions

1. Press the [=ok] key and use the UP/DOWN keys to select the desired menu.
2. Press the [=ok] key again to enter the selected menu.
3. Use the UP/DOWN keys or the channel knob to choose menu options, or input keypad number to enter the function quickly.
4. Press the [=ok] key to confirm and return to the main menu.
5. Press [EXIT] to exit the menu and return to normal operation mode.

Note: Frequency step, repeater shift direction, and frequency shift can only be set in frequency mode.

Basic Operations

Main Frequency Band Selection (A Band or B Band)

Press the A/B key to select the main frequency. The larger display indicates the currently active main frequency band.

Zone Selection

Go to Menu 10 to select a zone number, or long-press the '#' key for quick access.

PTT Function

When operating on the A band, press the PTT key to transmit on the A band frequency. When operating on the B band, press the PTT key to transmit on the B band frequency.

AM Air Band Mode

Press VFO/MR to switch to frequency mode. Directly input the air band frequency within the range of 108 MHz to 136 MHz. The radio will automatically enter AM reception mode, and the channel status will display AM. This mode is primarily used to receive AM modulated signals.

Scanning Mode

Assign the scanning function to the side keys PF2/PF3. Or long press button 1 to start frequency or channel scanning. You can choose one of the following modes from Menu 23:

• Time Operation Mode (TO): Stops scanning and stays at the same frequency for 5 seconds after detecting a signal, then resumes scanning.
• Carrier Operation Mode (CO): Stops scanning and remains at the same frequency until the signal disappears, with a 2-second delay before resuming.
• Search Operation Mode (SE): Exits the scan and stays on the frequency upon detecting a signal.

Commercial FM Radio Broadcast Reception Functions

(Long Press Button 0)

1. Long press the button 0 to turn on the FM RADIO.
2. Use the UP/DOWN keys or the channel knob to adjust the frequency. You can also input a frequency directly via the keypad. Press the OK button to switch the FM RADIO band between 65-76 MHz and 76-108 MHz.
3. Simultaneously press the '#' key to enter automatic channel search mode. Long press the button 0 again to turn off the FM RADIO.

Frequency Sweep Function / Copy Frequency

(Define PF2/PF3 buttons as SEARCH from Menu 24-26)

This function is used to seek the frequencies and sub-tones of nearby radios for immediate communication.

After defining the side keys (PF buttons) as SEARCH, press the button until the LCD displays "SEARCH/SEEK...". Press the OK button to select the frequency band from UHF/VHF/200M/300M. After capturing a frequency, it will continue to seek sub-tone CTCSS/DCS. If no sub-tone is found, the LCD will display "NONE." At this point, you can press the [MENU] key to save the frequency to a specified channel, or press the UP or DOWN key to start the next frequency scan.

Weather Forecast NOAA Function

(Define PF button as NOAA from Menu 24-26)

Press the designated side key to activate this function. The radio has 10 built-in fixed frequencies. You can press the UP/DOWN keys to select the frequency you want to listen to.

Note: The NOAA weather forecast function is available only in countries and regions that support the NOAA channels.

Channel Mode and Frequency Mode Switch

Press VFO/MR button to switch channel mode and frequency mode.

DTMF Encode Sending

Fast Operation: Press and hold the PTT button while entering the number keys 0-9, MENU, UP, DOWN, EXIT, *, and #. The radio will transmit DTMF codes 0-9, A, B, C, D, *, and #. Release the button to stop sending codes.

Editing DTMF Code: In standby mode, long press the DTMF button to enter the DTMF code editing interface. You can enter codes 0-9, OK, UP, DOWN, Exit, *, and # via the keypad. Press PTT to send the DTMF code.

PTT-ID Function

Transmit identity codes or call codes via DTMF. There are 15 sets of call codes, configurable through "Programming Software → Edit → DTMF". Each signal or A/B band can independently select the call code group to be sent. Configure identity code parameters via "Programming Software → Edit → DTMF → Local ID Code". There are three transmission methods:

• Send on Press: After pressing the PTT, the call code/identity code is sent first, followed by the voice signal.
• Send on Release: After releasing the PTT, the call code/identity code is sent, then the transmission ends.
• Send Both: The call code/identity code is sent both when the PTT is pressed and released.

Note: Since the identity code operation is independent of the call code, if there is a conflict between the identity code and the call code settings, the identity code will be sent.

Menu Function List

The menu system allows for detailed configuration of the radio's functions. Key menu items include:

• SQL (0): Squelch level adjustment.
• STEP (1): Frequency step setting.
• TXP (2): Transmit power selection (High, Middle, Low).
• SAVE (3): Power save settings (Normal, Super, Deep).
• VOX (4): Voice-Operated Transmission activation and sensitivity.
• W/N (5): Wideband/Narrowband selection.
• ABR (6): Backlight auto switch-off time.
• TDR (7): Dual frequency standby ON/OFF.
• BEEP (8): Operate beep ON/OFF.
• PROMPT (9): Allows audible confirmation of a key press.
• TOT (10): Time out timer for transmit.
• ZONE (10): Operation to change ZONE.
• MEMCH (11): Used to create new channels.
• DELCH (12): Delete a stored channel.
• R-CTCSS (13): Receive Standard CTCSS.
• R-DCS (14): Receive Standard DCS.
• T-CTCSS (15): Transmit Standard CTCSS.
• T-DCS (16): Transmit Standard DCS.
• VOICEPRI (17): Subtone encryption settings.
• CH-NAME (18): Input channel name.
• ROGER BEEP (19): Sends an end-of-transmission tone.
• VOICE (20): Voice prompts ON/OFF.
• LANGUAGE (21): Select voice guide language (English, Russian).
• BCL (22): Busy channel lockout ON/OFF.
• SC-REV (23): Scanning modes (TO, CO, SE).
• PF2/PF3 (24, 26): Assign functions to side keys (short press).
• LONG PRESS PF2 (25): Assign functions to PF2 key (long press).
• OFFSET (27): Frequency difference between radio transmission and reception.
• SFT-D (28): Enable access of repeater mode.
• POWER VOLTAGE (29): Power on show LOGO or voltage.
• S-CODE (30): DTMF Signal codes.
• DTMF CODE (31): DTMF transmission settings (BOT, EOT, BOTH).
• DTMFST (32): DTMF auto sending code settings.
• AUTOLOCK (33): Time to auto keypad lock.
• SCAN ADD (34): Add or delete channels into scan list.
• TONE (35): Send out a burst tone.
• PTT-LT (36): Delay time before automatic DTMF transmitting.
• MENU EXIT TIME (37): Delay time for exiting menu due to no operation.
• VOX DELAY (38): VOX delay time.
• RP-STE (39): Eliminate squelch tail noise when communicating through a repeater.
• RPT-RL (40): Delay the tail tone of repeater.
• MDF-A (41): A BAND display settings (frequency, channel number, name).
• MDF-B (42): B BAND display settings (frequency, channel number, name).
• STE (43): Eliminate squelch tail noise between handhelds.
• AL-MOD (44): Alarm mode settings (ON SITE, SEND SOUND, SEND CODE, Field alarm).
• SCRAMBLE (45): Voice scrambler function ON/OFF.
• NOISE REDUCTION (46): Noise Reduction/Cancellation ON/OFF.
• BLUETOOTH (47): Bluetooth ON/OFF for mobile app connection (RT-910B only).
• RESET (48): Menu initialization (VFO, RX, FM, ALL).
• Modulation (49): Switch between AM modulation or FM modulation.
• MicGain (50): Adjust Microphone Gain levels.
• VERSION (51): Show firmware or hardware version number.

Technical Specification

Safety & General Information

Environmental Protection: Dispose of electronic equipment responsibly at specialized waste disposal centers.

RF Exposure Standards: This two-way radio operates within the radio frequency (RF) spectrum. It is designed and tested to meet government-established RF exposure levels. Users are advised to follow specific operating instructions to control RF energy exposure.

Local Government Regulations: Users must be aware of and comply with local government regulations regarding two-way radio usage and RF exposure.

Radio License: Some countries require a license for operating two-way radios. Check local government radio management departments for classification and licensing requirements. FRS, CB, and PMR446 are generally license-free in their respective regions.

CE Marking: Indicates compliance with EU directives (RED, ROHS, WEEE).

Introduction: Thank you for choosing Radtel. This manual provides instructions for the safe and effective use of the equipment. Read the manual completely before use.

Important Safety Precautions:

• Use the equipment only for its intended purpose.
• Do not attempt to repair the equipment yourself; consult authorized service personnel.
• Turn the equipment off before installing or removing the battery pack.
• Install batteries and accessories correctly.
• Never transmit with a damaged antenna.
• Avoid transmitting for extended periods.
• Do not touch the antenna while transmitting.
• In case of malfunction (e.g., burning smell, smoke), turn off the device immediately and consult technical service.
• Do not insert objects into any openings of the transceiver.
• If using external headphones, keep the volume at a moderate level.
• Avoid exposing the equipment to water, direct sunlight, heat sources, dust, fire, or explosive conditions.
• Do not leave the transceiver in a parked vehicle in direct sunlight.
• Avoid humidity condensation. If condensation occurs, dry the equipment with a cloth before use.
• Do not place objects on the transceiver that could spill onto it.
• If the transceiver causes interference with other electronic equipment, move it away from the affected devices.
• Do not use the transceiver near medical equipment, as it may cause interference.
• Turn off the equipment in restricted areas (e.g., areas with flammable gases, potential for explosion, or where it may interfere with other equipment or operations).
• Do not operate the transceiver while driving; use hands-free systems and obey traffic laws.
• Clean the equipment with a dry, anti-static cloth or a slightly damp cloth. Do not use cleaning agents, alcohol, or solvents.
• Use only compatible accessories. Incompatible accessories may limit operation or damage the unit, voiding the warranty.
• Risk of explosion if the battery pack is replaced with an incompatible type.

FCC WARNING: Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This device complies with Part 15 of the FCC Rules.

ISEDC WARNING: This product meets applicable Industry Canada technical specifications. Operation is subject to two conditions: no harmful interference, and acceptance of any interference received.

WARNING: MODIFICATION OF THIS DEVICE TO RECEIVE CELLULAR RADIOTELEPHONE SERVICE SIGNALS IS PROHIBITED UNDER FCC RULES AND FEDERAL LAW.