1. Introduction
The Radtel RT-910 is a versatile 5W multi-band two-way radio designed for a wide range of communication needs. Featuring 960 programmable channels, AM/FM reception, and a broad frequency range including a 6-meter band and aviation band reception, this portable device offers robust performance and customizable functions. Its integrated spectrum analyzer and NOAA weather broadcast reception capabilities enhance its utility for various users.
Figure 1: Radtel RT-910 main features overview, highlighting multi-band TX/RX, 5W power, 960 channels, AM/FM RX, Spectrum Analyzer, and Frequency Copy.
2. Package Contents
Please check the box for the following items:
- 1x RT-910 Radio
- 1x 1800mAh Li-ion Battery Pack with Type-C charging port
- 1x Dual Band Antenna
- 1x Belt Clip
- 1x USB-C Charging Cable
- 1x Wall Charger (US Plug)
- 1x English User Manual
Figure 2: Package contents of the Radtel RT-910, including the radio, battery, antenna, belt clip, charger, USB-C cable, and manual.
Unboxing and Assembly Video
Video 1: A demonstration of unboxing the Radtel RT-910 and assembling its components, including battery and antenna installation.
3. Product Overview
Key Features
- Multi-band Operation: Supports a wide range of frequencies for transmission and reception.
- High Power Output: 5W for effective communication.
- Extensive Channel Capacity: 960 storage channels.
- AM/FM Reception: Includes aviation band AM reception and analog FM radio module (65-108MHz).
- Spectrum Analyzer: For examining interference and compliance checks.
- NOAA Weather Broadcast: Capable of receiving NOAA weather broadcasts.
- Customizable Side Keys: Multiple functional options for convenient operation.
- Type-C Charging: Modern and convenient charging interface.
Figure 3: Front view of the Radtel RT-910 walkie talkie, showing the display, keypad, and control buttons.
Figure 4: Illustration of customizable side key functions on the Radtel RT-910, including Spectrum, TX Power, NOAA, Radio, Scan, SOS, and Search.
Figure 5: Details on NOAA weather broadcast reception and the Analog FM Radio Module (65 to 108 MHz) of the RT-910.
Figure 6: Explanation of the Spectrum Analyzer feature, used for examining interference, compliance checks, and optimizing antennas.
4. Setup
4.1 Battery Installation
- Ensure the radio is powered off.
- Align the battery pack with the back of the radio.
- Slide the battery into place until it clicks securely.
4.2 Antenna Attachment
- Locate the antenna connector on the top of the radio.
- Screw the dual-band antenna clockwise onto the connector until it is finger-tight. Do not overtighten.
4.3 Charging the Battery
- Connect the USB-C charging cable to the Type-C port on the battery pack or directly to the radio.
- Plug the other end of the USB-C cable into the wall charger.
- Plug the wall charger into a power outlet.
- The charging indicator on the radio (if available) or battery will show charging status. A full charge typically takes several hours.
4.4 Initial Power On
- Rotate the power/volume knob clockwise until you hear a click and the display illuminates.
- Adjust the volume to a comfortable level.
5. Operating Instructions
5.1 Power On/Off and Volume Control
- Power On: Rotate the top-right knob clockwise.
- Power Off: Rotate the top-right knob counter-clockwise until it clicks.
- Volume Adjustment: Rotate the same knob clockwise to increase volume, counter-clockwise to decrease.
5.2 Frequency and Channel Selection
- VFO Mode (Frequency Mode): Press the VFO/MR button to switch to VFO mode. Use the keypad to enter desired frequencies or the UP/DOWN keys to adjust.
- MR Mode (Memory Channel Mode): Press the VFO/MR button to switch to MR mode. Use the UP/DOWN keys to scroll through stored channels.
- A/B Band Selection: Press the A/B button to switch between the upper (A) and lower (B) display bands.
5.3 Transmitting and Receiving
- Receiving: The radio will automatically receive signals on the selected frequency/channel.
- Transmitting: Press and hold the Push-To-Talk (PTT) button on the left side of the radio to transmit. Release to receive.
5.4 Menu Navigation
- Access Menu: Press the EQK button to enter the menu.
- Navigate: Use the UP/DOWN arrow keys to scroll through menu options.
- Select/Confirm: Press EQK to select an option or confirm a setting.
- Exit: Press the EXIT button to exit the current menu level or return to the main screen.
5.5 Customizable Side Keys (PF2, PF3)
The RT-910 features customizable side keys (PF2, PF3) that can be assigned various functions for quick access. Refer to the 'Menu Function List' (items 24-26) for available assignments like SOS, Spectrum, TX Power, Scan, Search, or NOAA.
6. Menu Functions
The following tables detail the available menu functions and their settings:
Menu Functions 0-5
| No | Menu | Second Menu | Setting |
|---|---|---|---|
| 0 | SQL | 0,...,9 | Setting the squelch to off will open up the squelch entirely. Squelch silences the receiver when there is no signal. The lower level is easier to interfere, and in the higher level, the sensitivity is not as good as lower level, so it is best to set it to middle. |
| 1 | STEP | 2.50K, 5.00K, 6.25K, 10.00K, 12.50K, 20.00K, 25.00K, 50.00K | In the frequency mode, press the up and down keys to change the step of the frequency. Selects the amount of frequency change in VFO/frequency mode when scan or press UP/DOWN keys. |
| 2 | TXP | HIGH, Middle, LOW, OFF | Transmit at High power, Middle power, Low power. Power save disable. |
| 3 | SAVE | Normal Mode, Super Mode, Deep Mode | Selects the ratio of sleep cycles to awake cycles (1:1, 2:1, 3:1). The higher the number the longer battery lasts. The higher number increase the RX sleep cycle, but you may miss the first few syllables before the RX opens. |
| 4 | VOX | OFF, 1,2,...,9 | Disable Voice Transmit function. Activate the VOX function, level 1 is most sensitivity. When enabled, it is not necessary to push the PTT button. |
| 5 | W/N | WIDE, NARROW | Wideband (25Khz bandwidth), Narrowband (12.5Khz bandwidth). |
Figure 7: Menu Function List for settings 0-5, covering Squelch, Frequency Step, Transmit Power, Power Save, VOX, and Bandwidth.
Menu Functions 6-15
| No | Menu | Second Menu | Setting |
|---|---|---|---|
| 6 | ABR | ON, 5s/10s...3min | Background light is always on. Backlight auto switch off time. |
| 7 | TDR | OFF, ON | Dual frequency standby OFF/ON. |
| 8 | BEEP PROMPT | OFF, ON | Operate beep OFF/ON. Allows audible confirmation of a key press. |
| 9 | TOT | 15s,...,755 | Time out timer for transmit. This feature provides a safety switch that limits transmission time to a programmed value. This will promote battery conservation and prevent interference to other users as well as battery depletion. |
| 10 | ZONE | ZONE1 ... ZONE15 | Used to create new channels (0 through 256) so that they can be accessed from MR/Channel mode. If the icon "CH-" is displayed, the channel already stored. |
| 11 | MEMCH | 001,...,256 | Operation to change ZONE. |
| 12 | DELCH | 001,...,256 | Delete a stored channel. If there is no CH in the front, the channel has no parameters and the operation is invalid. |
| 13 | R-CTCSS | OFF, 67.0Hz,...,254.1Hz | None CTCSS. Receive Standard CTCSS. Select standard tone or input non-standard tone via keypad. |
| 14 | R-DCS | OFF, D023N,...,D754I | None DCS. Receive Standard DCS. Select standard tone or input non-standard tone via keypad. |
| 15 | T-CTCSS | OFF, 67.0Hz,...,254.1Hz | None CTCSS. Transmit Standard CTCSS. Select standard tone or input non-standard tone via keypad. |
Figure 8: Menu Function List for settings 6-15, covering Backlight, Dual Frequency Standby, Beep Prompt, Time Out Timer, Zone, Memory Channel, Delete Channel, and CTCSS/DCS settings.
Menu Functions 16-23
| No | Menu | Second Menu | Setting |
|---|---|---|---|
| 16 | T-DCS | OFF, D023N,...,D754I | None DCS. Transmit Standard DCS. Select standard tone or input non-standard tone via keypad. |
| 17 | VOICEPRI | Encryption 1, Encryption 2, Encryption 3 | Subtone encryption, if enabled, others can't hear if their frequency and CTCSS/DCS is same as yours. |
| 18 | CH-NAME | Input channel name, press # to switch input method. | |
| 19 | ROGER | BEEP, TONE1200 | Enable, Sends an end-of-transmission tone to indicate to other stations that the transmission have ended. Send the frog sound. |
| 20 | VOICE | OFF, ON | Voice prompts OFF/ON. Allow audible voice confirmation of a key press. |
| 21 | LANGUAGE | ENGLISH, русский | Voice guide in English. Voice guide in русский. |
| 22 | BCL | OFF, ON | Busy channel lockout OFF/ON. Disable the PTT button on a channel that is already in use. |
| 23 | SC-REV | TO, CO, SE | Time scanning: When the radio detects a signal, it pauses scanning and remains for about 5 seconds. Even if the signal is still present, the radio will continue scanning. Carrier scanning: When it detects a signal The Radio stop scanning and remains at the scanned frequency; it continues scan when the signal disappears. Search scanning: When the walkie talkie detects a signal, it exits the scan and remains at this frequency. |
Figure 9: Menu Function List for settings 16-23, covering Transmit DCS, Voice Privacy, Channel Naming, Roger Beep, Voice Prompts, Language, Busy Channel Lockout, and Scan Resume methods.
Menu Functions 24-29
| No | Menu | Second Menu | Setting |
|---|---|---|---|
| 24 | PF2 | SOS/SPECTRUM/PTTB/RADIO/TX POWER/SCAN/SEARCH/NOAA | Allows you to assign the function you want as a shortcut to the radio PF2 keys. This corresponds to short press. |
| 25 | PF2 LONG PRESS | SOS/SPECTRUM/RADIO/TX POWER/SCAN/SEARCH/NOAA | Allows you to assign the function you want as a shortcut to the radio PF2 keys. This corresponds to long press. |
| 26 | PF3 | SOS/SPECTRUM/RADIO/TX POWER/SCAN/SEARCH/NOAA | Allows you to assign the function you want as a shortcut to the radio PF3 keys. This corresponds to short press. |
| 27 | OFFSET | 0.0000 | Frequency difference between radio transmission and reception. |
| 28 | SFT-D | +, - | In frequency mode, the TX frequency equals the RX frequency plus the frequency difference. In frequency mode, the TX frequency equals the RX frequency minus the frequency difference. |
| 29 | POWER ON MSG | LOGO, VOLTAGE | Power on show LOGO. Show voltage. |
Figure 10: Menu Function List for settings 24-29, covering customizable PF2/PF3 keys (short and long press), Frequency Offset, Shift Direction, and Power On Message.
Menu Functions 30-38
| No | Menu | Second Menu | Setting |
|---|---|---|---|
| 30 | S-CODE | 1,2,3...15 | DTMF Signal codes. |
| 31 | DTMF CODE | OFF, BOT, EOT, BOTH | Disable. Transmit DTMF code when press PTT. Transmit DTMF code when release PTT. Transmit DTMF code both when press PTT and release. |
| 32 | DTMFST | OFF, DT-ST, ANI-ST, DT+ANI | When transmitting (press PTT), Type DTMF code, radio will not emit the sound code. When transmitting (press PTT), DTMF code, radio will emit the sound code. DTMF auto sending code, radio will emit the sound code. When transmitting (press PTT), DTMF auto sending code or type DTMF code via keypad, radio will emit the sound code. |
| 33 | AUTOLOCK | OFF, 5S, 10S, 15S | Keypad lock turn off. Time to auto keypad lock. |
| 34 | SCAN ADD | ADD/Delete | Add or delete the channels into scan list. |
| 35 | TONE | 1000Hz, 1450Hz, 1750Hz, 2100Hz | To send out a burst tone, you simultaneously press PF2 key while holding down the PTT. |
| 36 | PTT-LT | 0,100,...,1000Ms | Delay time before automatic DTMF transmitting. |
| 37 | MENU EXIT TIME | 5,10,...,60S | During the menu operation, the delay time for exiting due to no operation. |
| 38 | VOX DELAY | 0.5SEC...2.0SEC | VOX delay time. |
Figure 11: Menu Function List for settings 30-38, covering DTMF Signal Codes, DTMF Transmit options, Keypad Lock, Scan List management, Burst Tone, PTT Delay, Menu Exit Time, and VOX Delay.
Menu Functions 39-43
| No | Menu | Second Menu | Setting |
|---|---|---|---|
| 39 | RP-STE | OFF, 1,2,3,4,5...10S | This function is used to eliminate squelch tail noise when communicating through a repeater (1-10 sec). |
| 40 | RPT-RL | OFF, 1,2,3,4,5...10S | Delay the tail tone of repeater (1-10s). |
| 41 | MDF-A | FREQ, CH, NAME | A BAND show frequency. A BAND show channel number. A BAND show channel name. |
| 42 | MDF-B | FREQ, CH, NAME | B BAND show frequency. B BAND show channel number. B BAND show channel name. |
| 43 | STE | OFF, ON | Squelch tail noise eliminate set OFF. This function is used to eliminate squelch tail noise between our handhelds that are communicating directly (no via repeater). |
Figure 12: Menu Function List for settings 39-43, covering Repeater Squelch Tail Elimination, Repeater Tail Tone Delay, Main Display Format for Band A and B, and Squelch Tail Elimination for direct communication.
Menu Functions 44-51
| No | Menu | Second Menu | Setting |
|---|---|---|---|
| 44 | AL-MOD | SEND SOUND, SEND CODE | Field alarm. Send alarm sound. Send alarm tone. |
| 45 | SCRAMBLE | OFF/ON | Voice scrambler function. Provide two scrambler frequency. Prevent parties on other radios at same frequency from hearing and understand your voice. |
| 46 | NOISE REDUCTION | ON/OFF | Option function, Turn on Noise Reduction/Cancellation (RT-910B Bluetooth version only). |
| 47 | BLUETOOTH | ON/OFF | Option function, Turn on Bluetooth connect with mobile app (RT-910B Bluetooth version only). |
| 48 | RESET | VFO, ALL | Menu initialization. |
| 49 | RX Modulation | FM, AM | Switch between AM modulation or FM modulation. |
| 50 | MicGain | LOW, Middle, HIGH | Adjust Microphone Gain levels. |
| 51 | VERSION | Firmware, Hardware | Show firmware version number. Show Hardware version number. |
Figure 13: Menu Function List for settings 44-51, covering Alarm Mode, Scrambler, Noise Reduction (RT-910B only), Bluetooth (RT-910B only), Reset, RX Modulation, Mic Gain, and Version Information.
7. Specifications
| Category | Parameter | Value |
|---|---|---|
| General | Store channels | 960 (64*15 Zone U/V) |
| Antenna | Dual Band U/V Antenna | |
| Frequency Stability | ±2.5ppm | |
| Dimension | 13cm*6cm*5cm (11×5×4cm from image) | |
| Weight | 280g | |
| Operating Temperature | -20 °C - +60 °C | |
| Antenna Impedance | 50Ω | |
| Receiving | Sensitivity | FM(12dB SINAD) -121 dBm, WFM(20dB SINAD) -110 dBm, AM (10dB S/N) -113 dBm |
| Audio Frequency | ≥0.5W | |
| Audio Distortion | ≤5% | |
| Transmitting | Output Power | ≤5W |
| Emission Current | ≤2A | |
| Max Freq Deviation | ≤5KHz@25KHz/≤2.5KHz@12.5KHz | |
| Modulation Distortion | ≤5% | |
| Stray Power | ≤7.5uW | |
| Battery | Capacity | 1800mAh |
| Range | Maximum Range | 3km-5km |
| Waterproof | Waterproof / Water-Resistant | No |
| Material | Housing Material | Plastic |
| Display | Is_Display | Yes |
| Origin | Country of Origin | Mainland China |
Figure 14: Detailed technical specifications for the Radtel RT-910, including general, receiving, and transmitting parameters.
Frequency Range Details
- 45-59Mhz: FM TX/RX (6 Meter Band)
- 65-108Mhz: FM RX (Analog FM Radio Module)
- 108-136Mhz: AM RX (Aviation Band)
- 136-260Mhz: TX/RX
- 260-299Mhz: RX only
- 300-520Mhz: TX/RX
8. Maintenance
- Cleaning: Use a soft, damp cloth to clean the radio's exterior. Avoid harsh chemicals or abrasive cleaners.
- Battery Care: To prolong battery life, avoid overcharging and fully discharging the battery frequently. Store the radio and battery in a cool, dry place when not in use for extended periods.
- Antenna: Ensure the antenna is securely attached. Do not operate the radio without an antenna connected, as this can damage the transmitter.
- Storage: When storing the radio for long periods, remove the battery.
9. Troubleshooting
- Radio does not power on: Check if the battery is correctly installed and charged. Ensure the power/volume knob is rotated clockwise past the 'off' click.
- No signal reception: Verify the antenna is properly attached. Check the selected frequency/channel and ensure it is active. Adjust the squelch level (Menu 0).
- Poor audio quality: Ensure the volume is set appropriately. Check for obstructions around the speaker and microphone.
- Cannot transmit: Ensure the PTT button is fully pressed. Check if the channel is busy (BCL function, Menu 22). Verify transmit power settings (Menu 2).
- Keypad locked: If the keypad is unresponsive, check the AUTOLOCK setting (Menu 33) and unlock it if necessary.
10. User Tips
- Antenna for 45-59MHz: The included dual-band antenna is generally designed for a broad range of frequencies. However, for optimal performance on specific bands like 45-59MHz, a specialized antenna tuned for that frequency range may provide improved transmission and reception. Consult with an amateur radio expert for specific antenna recommendations.
- Spare Batteries: For extended use, consider purchasing additional 1800mAh Li-ion battery packs. Ensure they are genuine Radtel accessories to guarantee compatibility and safety.
11. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your original point of purchase or the manufacturer directly. Keep your purchase receipt as proof of purchase.