Introduction
The SOCOTRAN T90 is a robust FRS (Family Radio Service) two-way radio designed for reliable communication in various environments. Featuring IP67 waterproofing, NOAA weather alerts, and an integrated SOS function, this device is suitable for outdoor activities and general use. This manual provides essential information for the proper setup, operation, and maintenance of your T90 walkie-talkie.

Image: SOCOTRAN T90 Walkie Talkie partially submerged in water, illustrating its IP67 waterproof capability.
Package Contents
Before using your SOCOTRAN T90, please verify that all items are present in the package:
- 2 x SOCOTRAN T90 Walkie Talkies
- 1 x Seat Charger Base
- 2 x Belt Clips
- 2 x Lanyards
- 1 x USB Charging Line
- 6 x AA Ni-MH Rechargeable Batteries (1200 mAh)
- 1 x User's Manual (this document)

Image: A visual representation of the SOCOTRAN T90 package contents, showing two walkie-talkies, a charger base, batteries, belt clips, lanyards, and a USB cable.
Setup
1. Battery Installation
- Locate the battery compartment cover on the back of the walkie-talkie.
- Slide the cover downwards or unclip it to open the compartment.
- Insert the 6 AA Ni-MH rechargeable batteries, ensuring correct polarity (+/-) as indicated inside the compartment.
- Close the battery compartment cover securely until it clicks into place.
2. Charging the Batteries
The SOCOTRAN T90 offers two charging methods:
- Using the Seat Charger Base: Place the walkie-talkie into the seat charger base. Ensure the charging contacts align. The charging indicator light on the base will illuminate to confirm charging.
- Using the USB Charging Line: Connect the micro-USB end of the charging cable to the USB port on the side of the walkie-talkie. Connect the other end to a compatible USB power source (e.g., wall adapter, computer USB port).
A full charge typically takes several hours. The battery icon on the display will indicate charging status.

Image: The SOCOTRAN T90 walkie-talkie demonstrating its two charging methods: via the seat charger base and directly through a USB cable. The battery compartment is also shown.
3. Attaching Accessories
- Belt Clip: Slide the belt clip onto the designated slot on the back of the radio until it locks.
- Lanyard: Thread the lanyard through the loop located on the top or side of the radio.
Operating Instructions
1. Power On/Off
- To power on, press and hold the Power/Menu button until the display illuminates.
- To power off, press and hold the Power/Menu button until the display turns off.
2. Channel Selection
The T90 operates on 22 FRS channels.
- Press the Menu button once. The channel number will flash on the display.
- Use the Up or Down arrow buttons to select your desired channel (1-22).
- Press the Menu button again or wait a few seconds for the selection to be confirmed.
3. Privacy Codes (CTCSS/DCS)
To ensure private and interference-free communication, you can set privacy codes (CTCSS/DCS tones). Refer to the on-screen menu options for detailed instructions on setting these codes. Both radios must be on the same channel and privacy code to communicate.
4. Transmitting and Receiving
- To transmit, press and hold the PTT (Push-to-Talk) button located on the side of the radio. Speak clearly into the microphone.
- Release the PTT button to receive messages.
5. NOAA Weather Scan & Alert
The T90 can scan 11 NOAA weather channels and provide alerts for severe weather conditions.
- To activate NOAA Weather Scan, press the dedicated Mon/Scan button until the NOAA icon appears. The radio will automatically scan for the strongest weather channel.
- When an alert is issued, the radio will sound an alarm and display the alert information.
- To exit NOAA Weather Scan, press the Mon/Scan button again.
Note: NOAA radio service availability may vary by location.

Image: The SOCOTRAN T90 walkie-talkie with its display showing the NOAA Weather Alert function, set against a cloudy, mountainous landscape.
6. SOS Emergency Function
The T90 includes an SOS emergency button for critical situations.
- With the walkie-talkie powered on, press and hold the red SOS button for 3 seconds.
- The red LED light will activate, emitting an SOS signal.

Image: The SOCOTRAN T90 walkie-talkie with its red SOS light activated, held by a person in firefighter gear, indicating its emergency signaling capability.
7. Flashlight
The integrated flashlight provides illumination in low-light conditions.
- Press the LAMP button to turn the flashlight on.
- Press the LAMP button again to turn it off.

Image: The SOCOTRAN T90 walkie-talkie with its flashlight beam visible, illuminating a dark outdoor camping scene.
8. VOX (Voice Operated Exchange)
The VOX feature allows for hands-free operation. When activated, the radio will transmit automatically when it detects your voice.
- Access the menu and navigate to the VOX setting.
- Select the desired VOX sensitivity level (higher levels require less voice input to activate).
- Exit the menu to enable VOX.
Waterproof and Floating Feature
The SOCOTRAN T90 is rated IP67, providing complete protection against dust and allowing for immersion in 1 meter of water for up to 30 minutes. Additionally, the walkie-talkie is designed to float if dropped in water, and a white LED light will automatically activate to help locate it in dark conditions.

Image: A SOCOTRAN T90 walkie-talkie floating on the surface of water, with its LED light illuminated, demonstrating its floating and water-activated light features.
Product Overview Video
Video: An official product video showcasing the SOCOTRAN T90 walkie-talkie, highlighting its features and design, including its FCC ID compliance.
Maintenance
1. Cleaning
- Wipe the radio with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Ensure the charging port and battery compartment are free of dirt and debris.
2. Battery Care and Storage
- Always use the provided rechargeable Ni-MH batteries and charging accessories.
- For long-term storage, remove the batteries from the radio.
- Store the radio and batteries in a cool, dry place away from direct sunlight and extreme temperatures.
3. Water Exposure Guidelines
- While IP67 rated, avoid prolonged submersion beyond specified limits.
- Ensure the battery compartment cover and USB port cover are securely closed before exposing the radio to water.
- After exposure to saltwater, rinse the radio with fresh water and dry thoroughly.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Radio does not power on | Low or depleted batteries; Incorrect battery installation | Charge batteries; Reinstall batteries with correct polarity |
| Cannot communicate with other radios | Different channels or privacy codes; Out of range | Ensure all radios are on the same channel and privacy code; Move closer to the other radio |
| Poor audio quality or static | Weak signal; Interference; Out of range | Move to an open area; Avoid obstacles; Reduce distance between radios |
| NOAA Weather Alert not working | Not in an area with NOAA service; Feature not activated | Check local NOAA service availability; Activate NOAA scan feature |
| Limited communication range | Environmental factors (buildings, terrain); Battery level | Range is affected by line of sight and obstacles. Optimal range is achieved in open areas. Ensure batteries are fully charged. |

Image: An illustration depicting the typical communication range of the SOCOTRAN T90 walkie-talkie in various environments: 1-1.5 miles in neighborhoods, 2-3 miles in urban areas, and 3-5 miles in mountainous regions.
Specifications
| Feature | Detail |
|---|---|
| Brand | SOCOTRAN |
| Model Number | T90 |
| Color | GREEN |
| Number of Channels | 22 (FRS) |
| Frequency Range | FRS |
| Water Resistance Level | IP67 Waterproof |
| Talking Range Maximum | 5 Miles (under optimal conditions) |
| Batteries | 6 AA Ni-MH rechargeable batteries (included) |
| Voltage | 5 Volts |
| Item Weight | 1.9 Pounds |
| Special Features | NOAA Weather Alert, SOS Emergency Button, Floating, Flashlight |
Warranty and Support
The SOCOTRAN T90 FRS Two-Way Radio comes with a standard manufacturer's warranty. For specific warranty details, please refer to the warranty card included in your package or contact SOCOTRAN customer support.
If you encounter any issues or have questions not covered in this manual, please contact SOCOTRAN customer support through their official website or the retailer where you purchased the product. Please have your model number (T90) and purchase information ready when contacting support.




