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

Product Overview

The Radtel RT-910/RT-910B is a dual-band two-way radio offering features such as selectable repeater high/low power, 1750Hz tone burst, emergency alert function, and VOX hands-free transmission.

Download for Android: [Get it on Google Play]

Download for App Store: [Download on the App Store]

(App download links are for RT-910B version only)

Buttons and Knobs

The radio features the following controls:

• Antenna: For transmitting and receiving radio waves.
• Power Knob: Controls the power supply to the radio.
• PTT Button: Push-To-Talk button for transmitting.
• PF1, PF2, PF3 Buttons: Programmable function keys.
• Display: Shows frequency, channel, status, and menu information.
• Headphone Jack: For connecting external earphones.
• Microphone Jack: For connecting an external microphone.
• Speaker: Outputs audio.
• Charger Port: For charging the battery.
• Numeric Keypad: For entering frequencies, channel numbers, and menu options.

Keypad Operations

The keypad allows for various operations:

• VFO/MR Button: Switches between Frequency mode (VFO) and Memory Channel mode (MR).
• A/B Button: Selects the primary frequency band (A or B).
• OK Button: Confirms selections or enters menus.
• EXIT Button: Exits menus or returns to the previous screen.
• SCAN Button: Initiates frequency or channel scanning.
• PF2 Button: Short press to turn on FM RADIO; long press to switch between high/medium/low power.
• PF3 Button: Short press to search for nearby radio frequencies; long press to open squelch.
• Frequency Step Modification: Press and hold the [OK] button for over 2 seconds to quickly change the frequency step. In scan mode, it changes the scan direction.
• Band A/B Switching: Use the A/B button to switch between bands.
• DTMF Input: Long press the DTMF key to enter DTMF input mode.
• Quick Selection Button: Long press to access quick selection functions.
• Reverse Frequency / Talk Around / Normal Mode: Short press to switch between these modes.
• FM Radio Activation: Long press the keypad button to activate the FM RADIO.
• Keypad Lock: Activates/deactivates the keypad lock.

Key Combinations

LCD Display and Content

The LCD display shows various indicators and information:

• DW: Dual Watch indicator.
• UFO: Likely a channel or mode indicator.
• Frequency Display: Shows current operating frequencies (e.g., 145.00000, 435.65000).
• ZONE1: Indicates the current zone.
• H: High power indicator.
• Channel Name: Displays the name of the current channel.
• Battery Indicator: Shows remaining battery charge (e.g., 8.4V).
• Channel Number: Displays the current channel number (e.g., 006).
• Signal Strength: Indicates received signal strength (e.g., +60).
• Other Indicators: Various icons may appear for different functions like VOX, Scan, etc.

Icon Descriptions

Understanding the icons on the display:

• CT: Analog sub-audio tone indicator. Appears during transmission if an analog sub-audio signal is being sent.
• DCS: Digital sub-audio tone indicator. Appears during transmission if a digital sub-audio signal is being sent.
• H: High power indicator. Shows transmission power is set to high.
• M: Medium power indicator. Shows transmission power is set to medium.
• L: Low power indicator. Shows transmission power is set to low.
• N: Narrow band mode indicator. Appears when the channel operates in narrow band mode.
• W: Wide band mode indicator. Appears when the channel operates in wide band mode.
• R: Frequency mode (+ frequency offset). Appears in frequency mode, indicating TX frequency is RX frequency plus offset.
• (Reverse Frequency Symbol): Frequency mode (- frequency offset). Appears in frequency mode, indicating TX frequency is RX frequency minus offset.
• (Frequency/Channel Mode, Reverse Frequency): Appears when receiving and transmitting frequencies are reversed.
• AM: AM modulation indicator. Shows the radio is in AM modulation mode.
• SCR: Scrambler function indicator. Shows the scrambler function is active.
• VOX: Voice Activated Transmission indicator. Shows VOX is enabled; transmission starts when microphone sound level reaches the set threshold.
• DH: Dual Standby indicator. Shows dual-band standby is set and active, allowing simultaneous monitoring of two frequencies.
• MO: Monitor function enabled indicator.
• T: Side tone enabled indicator. Produces a tone sound during DTMF transmission.
• BCL: Keypad lock indicator. Appears when the keypad is locked. Long press the # key to unlock.
• RSSI: Signal strength indicator. Shows the strength of the received signal.
• A/B: Indicates if Band A or Band B is active.
• T/R: Transmitted audio volume indicator.
• Battery Status: Displays remaining battery charge. When low, the outer frame blinks and transmission is blocked. When green, the device is in super power-saving mode.

Function Usage Instructions (Menu)

To navigate the menu:

1. Press the [OK] button and use the UP/DOWN keys to select the desired menu item.
2. Press the [OK] button again to enter the selected menu.
3. Use the UP/DOWN keys or the channel knob to choose menu options or enter the keypad number to quickly access a function.
4. Press the [OK] button 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.

Operations

Function Menu

The radio offers a comprehensive menu system for configuring various functions:

List of Functions

• SU: Backlight is always on.
• SPENTO: Automatic backlight timeout.
• TDR: Dual standby OFF.
• SU: Dual standby ON.
• SPENTO: Disables audible signal.
• SU: Enables audible signal for key press confirmation.
• TOT (Time-out Timer): This function provides a safety switch that limits transmission time to a programmed value. It helps save battery by preventing excessively long transmissions and, in case of PTT blockage, can prevent interference with other users and battery depletion.
• MEMCH: Used to create new channels (0 to 256) so they are accessible from MR/Channel Mode. If "CH-" is displayed, the channel is already stored.
• DELCH: Deletes a stored channel. If there is no "CH" prefix, the channel has no parameters and the operation is invalid.
• CTCSS: Receives standard CTCSS. Select standard tone or input non-standard tone via keypad.
• DCS: Receives standard DCS. Select standard tone or input non-standard tone via keypad.
• SPENTO: Receives standard CTCSS.
• SU: Transmits standard CTCSS. Select standard tone or input non-standard tone via keypad.
• SPENTO: Receives standard DCS.
• SU: Transmits standard DCS. Select standard tone or input non-standard tone via keypad.
• T-DCS: Transmits standard DCS. Select standard tone or input non-standard tone via keypad.
• VOICEPRI: Encryption 1, 2, 3. Sub-tone encryption; if enabled, others cannot hear if their frequency and CTCSS/DCS match yours.
• CH-NAME: Channel Name. Input channel name; press # to change input method.
• ROGER: Enables Roger beep, sending an end-of-transmission tone to indicate to other stations that transmission has ended.
• TONE1200: Sends frog sound.
• VOICE: Voice prompt OFF.
• SU: Voice prompt ON. Allows audible confirmation of key presses.
• LANGUAGE: English voice prompt, Chinese voice prompt.
• BCL: Channel busy lock OFF.
• SU: Disables PTT on a channel that is already in use.
• SC-REV: Time Scan: When the radio detects a signal, it stops scanning and remains for approximately 5 seconds. Even if the signal is still present, the radio will continue scanning.
• CO: Carrier Scan: When a signal is detected, the radio stops scanning and remains on the scanned frequency; it resumes scanning when the signal disappears.
• PF2 DIO: Allows assigning a desired function as a shortcut to the radio's PF2 keys. This corresponds to a short press.
• PF2 PROL-IONE: Allows assigning a desired function as a shortcut to the radio's PF2 keys. This corresponds to a long press.
• PF3 DIO: Allows assigning a desired function as a shortcut to the radio's PF3 keys. This corresponds to a short press.
• OFFSET: Frequency difference between transmit and receive.
• SFT-D: Enables repeater mode access. OFF: no repeater shift. In frequency mode, TX frequency equals RX frequency plus frequency difference. In frequency mode, TX frequency equals RX frequency minus frequency difference.
• LOGO VOLTAGGIO: Displays LOGO, displays voltage.
• DTMF Signals: DTMF signal codes 1,2,3...15.
• DTMF: SPENTO (Disable), BOT (Transmit DTMF when PTT pressed), ENTRAMBI (Transmit DTMF when PTT pressed and released).
• DTMFST: SPENTO (During transmission (PTT pressed), enter DTMF, radio does not emit audio code), DT-ST (During transmission (PTT pressed), enter DTMF, radio emits audio code), ANI-ST (During transmission (PTT pressed), automatic DTMF send code, radio emits audio code), DT+ANI (During transmission (PTT pressed), automatic DTMF send code or enter DTMF via keypad, radio emits audio code).
• AUTOBOLC: Keypad lock disable. 5S, 10S, 15S: Auto-lock keypad after specified time.
• SCAN: ADD/Delete channels from the scan list.
• TONE: 1000 Hz, 1450 Hz, 1750 Hz, 2100 Hz. To send a burst tone, press PF2 and hold PTT.
• RP-STE: This function is used to eliminate squelch tail noise when communicating via a repeater (1-10 sec).
• RPT-RL: Delays the repeater tail tone (1-10 s).
• MDF-A: FREQ displays Band A frequency. CH displays Band A channel number. NAME displays Band A channel name.
• MDF-B: FREQ displays Band B frequency. CH displays Band B channel number. NAME displays Band B channel name.
• TX-A/B: SPENTO (In dual standby, press PTT to transmit on main band), UN (In dual standby, press PTT to transmit on Band A), B (In dual standby, press PTT to transmit on Band B).
• STE: Squelch tail elimination OFF.
• SU: Eliminates squelch tail noise between our handhelds communicating directly (not via repeater).
• AL-MOD: Field alarm.
• INVIA SUONO: Send alarm sound.
• INVIA CODICE: Send alarm tone.
• SCAMBLE: SPENTO/ACCESS. Voice scrambler function. Provides two scrambler frequencies, preventing others on the same frequency from hearing and understanding your voice.
• RESET: VFO, ALL. Menu initialization.
• VERSION: Firmware, Hardware. Displays firmware version and hardware version.

Technical Specifications

General

• Channels: 999
• Antenna: Dual band U/V Antenna
• Frequency Stability: ±2.5 ppm
• Dimensions: 11x5x4cm
• Weight: 280g
• Operating Temperature: -20°C to +60°C
• Antenna Impedance: 50Ω

Receiving

• Sensitivity: FM(12dB SINAD) -121dBm, WFM (20 dB SINAD) -110dBm, AM (10 dB) SNR -113 dBm
• Audio Frequency: ≥0.5W
• Audio Distortion: ≤5%

Transmitting

• Output Power: ≤5W
• Current Emission: ≤2A
• Max Frequency Deviation: ≤5Khz@25 kHz / ≤2.5 kHz@12.5 kHz
• Modulation Distortion: ≤5%
• Spurious Emission: ≤7.5uW

Safety and Information

General

Items marked with this symbol [Recycling Symbol] should not be disposed of with normal household waste but taken to specialized collection centers for recycling. This contributes significantly to environmental protection.

(Includes text in German, French, Italian, Spanish, Dutch, Portuguese, English regarding disposal and recycling.)

Conformity to Exposure Standards

This two-way radio uses radio frequency (RF) electromagnetic energy for communication. RF energy is a form of electromagnetic energy. While RF energy is generally safe when used as intended, high levels of certain electromagnetic energies (like X-rays) can cause harm. Experts in science, engineering, medicine, health, and industry collaborate to develop standards for safe RF exposure, including wide safety margins. All RADTEL transceivers are designed, manufactured, and tested to comply with government-established RF exposure levels. Manufacturers recommend specific operating instructions for users to control RF exposure. For more information, visit http://www.who.int/en/.

Local Government Regulations

When using two-way radios in a professional setting, local regulations require users to be fully aware of and control their RF exposure to meet professional requirements. This awareness is facilitated by product labels directing users to specific information. The Radtel two-way radio has a product label for RF exposure. The Radtel user manual or separate safety booklet includes necessary information and operating instructions for controlling RF exposure and meeting compliance requirements.

Radio License

Governments classify walkie-talkies. Most classified walkie-talkies must be surrendered to the local government. For detailed classification and usage, contact local radio management offices. For specific classifications like USA/CA FRS, Australian CB, EU PMR446, an individual license is not required.

CE Mark

Xiamen Radtel Electronics Co.,Ltd hereby declares that this radio equipment is in compliance with Directive RED 2014/53/UE, Directive ROHS 2011/65/UE, and Directive WEEE 2012/19/UE. The full text of the EU declaration of conformity is available in this manual or at www.radtels.com.

Introduction

Xiamen Radtel Electronics Co., Ltd. thanks you for your trust in this product. We are confident you will be satisfied with its quality and features. For safe operation, read this user manual carefully. This transceiver is designed for users requiring easy-to-use, high-quality, high-performance, and excellent reliability communication equipment. The transmitter you have purchased has been manufactured under strict quality control. The equipment is delivered in packaging that cushions shocks and vibrations during transport, ensuring excellent condition upon acquisition. After unpacking, check the equipment and accessories for damage. If in doubt, do not use it and contact Technical Service or your distributor. Packaging materials (plastic bags, etc.) should be kept out of reach of children as they pose a potential hazard. The manufacturer and seller disclaim all responsibility for damages resulting from improper, inadequate, or careless use of the equipment. It is important to note that some functions are explained in relation to information provided in previous or remote chapters; reading only certain parts of this manual may lead to a misunderstanding of the complete functions. Pay attention to notes in boxed sections. Ensure you correctly understand all instructions in this manual. Keep this manual for future reference. Repairs or internal adjustments should always be performed at an Authorized Technical Service Center. Internal tampering, alteration, or modification of technical characteristics by personnel unfamiliar with Technical Service will invalidate the warranty. This equipment left the distributor's warehouses in technically usable condition compliant with the legislation in force in the country where this transceiver is used. Altering these characteristics, making internal adjustments, or unauthorized modifications may result in illegal use of the equipment, punishable as an infraction, as well as generating interference that may compromise other legally established communications. Improper use of this equipment is the sole responsibility of the user. License-free transceivers do not require administrative authorization or licenses for their operation and are intended for use in the following EU countries: [List of EU countries including Austria, Belgium, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Luxembourg, Netherlands, Portugal, Spain, Sweden, Switzerland, United Kingdom, Cyprus, Czech Republic, Estonia, Hungary, Latvia, Lithuania, Malta, Poland, Slovakia, Slovenia, Bulgaria, Romania].

Notes

• The use of the transceiver may be prohibited in certain places or enclosures; adhere to usage limitations.
• Adhere to national legislation regarding the use of radio communication transceivers.

Safety Precautions

• Use this equipment exclusively for its intended purpose. The manufacturer and retailer assume no responsibility, and the warranty is void in case of improper use of the transceiver.
• This equipment has no user-serviceable parts. Always consult Authorized Technical Service for any repair.
• Do not operate, switch off, install, or remove the battery pack while the equipment is in operation. Always use the ON/OFF switch.
• Install the battery pack and accessories (optional) correctly according to the instructions in this manual.
• Never transmit with the transceiver if the antenna is damaged.
• Do not transmit with the transceiver for prolonged periods.
• Do not touch the antenna with your hands or any part of your body while the equipment is transmitting.
• In case of malfunction of the transceiver or its charger (burning smell, smoke, etc.), switch it off immediately, unplug the charger from the AC wall socket, and consult Technical Service.
• Do not insert any objects into the speaker holes or connectors of the transceiver.
• If using external earphones (optional), reduce the volume level as much as possible; avoid very high volume levels.
• Do not expose the equipment or charger directly to water, direct sunlight for prolonged periods, near heat sources (radiators, etc.), impact, excessive dust or dirt, fire, explosions, or other hazardous conditions. Do not store the transceiver inside a vehicle parked in direct sunlight.
• Avoid humidity condensation. Air humidity deposits in the transceiver when moving from a cold to a warm environment, compromising the equipment's proper functioning. If condensation forms in the equipment, wipe it with a dry cloth and wait for it to dry before turning it on.
• Do not place objects on the transceiver that could fall off.
• If the transmitter/receiver causes interference with a VCR, DVD player, radio, television receiver, or any other electronic equipment, move it away from the affected equipment.
• Do not use this transmitter/receiver near other electronic equipment, especially medical equipment, as it may cause interference.
• Switch off and do not use the equipment in areas where its use is restricted or prohibited (e.g., coal gas, explosive atmospheres, areas where it may interfere with the operation of other equipment, on board aircraft).
• Do not use this transceiver while driving a vehicle; use hands-free systems (VOX function) and respect police instructions.
• To clean the equipment and/or charger, use an anti-static cloth (preferably) or a slightly damp cloth (not wet).
• Do not spray any liquid or product directly onto the transceiver, battery, or charger, and never use household polish, detergents, alcohol, or solvents for cleaning them.
• Do not use a dry cloth for cleaning, as it may cause static electricity.
• Using accessories incompatible with the transceiver may limit its operation and even cause damage that voids the warranty.
• Risk of explosion if the battery is replaced with an incompatible type.

General FCC Notice

Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authorization to operate the equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following 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. Note: This equipment has been tested and found to comply with the limits for Class B digital devices, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment causes harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the distance between the equipment and the receiver.
• Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.

Information on Radio Safety

Your wireless portable transceiver contains a low-power transmitter. When you press the conversation button, it sends radio frequency (RF) signals. The device is authorized to operate with a duty factor not exceeding 50%. In August 1996, the Federal Communications Commission (FCC) adopted safety guidelines for RF exposure for portable wireless devices.

Important FCC Requirements for RF Exposure:

For body-worn use, this radio has been tested and meets FCC RF exposure guidelines when used with supplied accessories or accessories designed for this product. Use of other accessories may not ensure compliance with FCC RF exposure guidelines. Use only the supplied antenna. Unauthorized antennas, modifications, or accessories could damage the transmitter and violate FCC regulations.

Normal Position

Hold the transmitter approximately 25 mm from your face and speak in a normal tone of voice, with the antenna pointing up and away.

ISEDC NOTICE

This product complies with applicable Industry Canada technical specifications. This device complies with Industry Canada license-exempt RSS standards. Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.

ISEDC Radiation Exposure Statement

For body-worn operation, this device model has been tested and meets FCC/ISED RF exposure guidelines when used with an accessory designed for this product or when used with an accessory that does not contain metal and whose minimum distance from the face is 25 mm. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's right to operate the equipment.