1. Introduction
Thank you for purchasing the TYT CB Mini Walkie Talkie. This compact and versatile 11-meter citizen band radio is designed for reliable communication with FM/AM modulation, 4W output power, and 40 channels. This manual provides essential information for the proper setup, operation, and maintenance of your device.
Figure 1: TYT CB Mini radio and microphone
2. Package Contents
Please check the package for the following items:
- 1 × TYT CB Mini Radio Body
- 1 × Speaker Mic
- 1 × Bracket
- 1 × Power Cable
- 1 × Screw Sets
- 1 × Hook for Speaker Mic
- 2 × Fuse
- 1 × English Manual
Figure 2: Package contents
3. Product Features
The TYT CB Mini offers a range of features for enhanced communication:
- Compact mini size and slim design
- Lightweight radio body (350g, microphone speaker not included)
- Modulation Modes: FM/AM
- Noise Reduction capabilities
- Echo function
- Adjustable RF Gain
- Adjustable Microphone Gain
- Adjustable Backlight Brightness
- Adjustable Beep Level
- Roger Beep function
- Dual Watch (DW)
- SCAN function
- Time Out Timer (TOT)
- MUTE function
- Automatic Squelch (ASQ) / Squelch (SQ) Feature
- Voice Operated Exchange (VOX)
- Reset function
Figure 3: Backlight brightness adjustment with various colors
Figure 4: Backlight brightness adjustment and noise cancelling features
Figure 5: VOX feature demonstrated in a car
Figure 6: Adjustable reception sensitivity (RF gain) and Automatic Noise Cancellation (ASQ)
4. Component Identification
Familiarize yourself with the main components of your TYT CB Mini radio:
Figure 7: Front and Rear Panel Diagram
- Microphone Jack
- A/FM MENU Button
- ASQ BEEP Button
- RFG MICG Button
- DW SCAN Button
- NR LOCK Button
- Power On/Off Volume control
- LCD (Liquid Crystal Display)
- External speaker Jack
- Antenna Jack
- DC Power Cable Connector
Figure 8: Detailed views of connectors and microphone
5. Setup
Follow these steps to set up your TYT CB Mini radio:
5.1 Connecting the Microphone
- Locate the Microphone Jack (1) on the front panel of the radio.
- Align the 6-pin connector of the Speaker Mic with the Microphone Jack.
- Gently push and twist the connector clockwise until it is securely fastened.
5.2 Power Connection
- Connect the provided Power Cable to the DC Power Cable Connector (11) on the rear of the radio.
- Ensure the red wire connects to the positive (+) terminal and the black wire to the negative (-) terminal of your 13.8V DC power source.
- Use the included fuses for protection.
5.3 Antenna Connection
- Connect your UHF (SO239) compatible antenna to the Antenna Jack (10) on the rear of the radio.
- Ensure the connection is tight to prevent signal loss.
5.4 Mounting the Radio
Use the provided bracket and screw sets to securely mount the radio in your vehicle or desired location. Ensure it is placed in a position that does not obstruct driving or safety features.
Figure 9: Dimensions of the radio and microphone for mounting reference
6. Operating Instructions
6.1 Power On/Off and Volume Control
Turn the Power On/Off Volume control (7) clockwise to power on the radio and adjust the volume. Turn counter-clockwise to decrease volume and power off.
6.2 Channel Selection
Use the UP/DN buttons on the microphone to select your desired channel. The selected channel will be displayed on the LCD (8).
6.3 Modulation Mode (A/FM MENU)
Press the A/FM MENU button (2) to switch between AM and FM modulation modes.
6.4 Squelch (ASQ BEEP)
Press the ASQ BEEP button (3) to activate or adjust the Automatic Squelch (ASQ) or manual Squelch (SQ) level. This helps to suppress background noise when no signal is present.
6.5 RF Gain and Mic Gain (RFG MICG)
Press the RFG MICG button (4) to adjust the RF Gain (reception sensitivity) or Mic Gain (microphone sensitivity). Use the channel selector or volume knob to change the level.
6.6 Dual Watch (DW SCAN)
Press the DW SCAN button (5) to activate the Dual Watch function, allowing you to monitor two channels simultaneously. Press again to activate the SCAN function, which scans through active channels.
6.7 Noise Reduction Lock (NR LOCK)
Press the NR LOCK button (6) to activate the Noise Reduction feature or to lock the current settings.
6.8 Transmitting
To transmit, press and hold the Push-To-Talk (PTT) button on the microphone. Speak clearly into the microphone. Release the PTT button to listen.
Video 1: Unboxing and demonstration of basic radio functions and settings.
7. Maintenance
To ensure optimal performance and longevity of your TYT CB Mini radio:
- Cleaning: Use a soft, dry cloth to clean the radio's exterior. Do not use harsh chemicals or solvents.
- Storage: Store the radio in a dry, cool place away from direct sunlight and extreme temperatures.
- Connections: Periodically check all connections (antenna, power, microphone) for tightness and corrosion.
- Fuses: If the radio does not power on, check and replace the fuses if necessary. Use only fuses of the specified rating (2A).
8. Troubleshooting
- No Power: Check power cable connection, vehicle's fuse box, and the radio's inline fuses. Ensure the power source is 13.8V DC.
- No Transmission/Reception: Verify antenna connection. Ensure the correct modulation mode (AM/FM) is selected. Check squelch settings.
- Poor Audio Quality: Adjust Mic Gain and RF Gain. Check for loose microphone connection.
- Interference: Adjust Noise Reduction (NR) and Squelch (ASQ/SQ) settings.
9. Specifications
| Category | Specification |
|---|---|
| General | |
| Frequency Range | 26.96500-27.40500MHz |
| Frequency Band | European CB Band (Citizen band) |
| Channels | 40 channels |
| Frequency Control | Phase-locked-loop Synthesizer |
| Frequency Tolerance | ±5.0ppm |
| Temperature Range | -20°C to +50°C |
| Microphone | With push-to-talk UP/DN buttons and coiled cord |
| Input Voltage | 13.8V |
| Dimensions | 145*107*27mm |
| Weight | 350g (Radio body only, speaker microphone excluded) |
| Antenna Connector | UHF, SO239 |
| Transmitter | |
| Power Output | 4W |
| Current Drain | Max. 2A (With modulation) |
| Modulation | FM/AM |
| Unwanted Sideband | 50dB |
| Frequency Response | AM/FM: 450 to 2500Hz |
| Receiver | |
| Sensitivity | AM: 1.0uV for 10dB (S+N)/N at greater than 1/2watt of audio output. FM: 1.0uV for 20dB (S+N)N at greater than 1/2 watt of audio output. |
| Selectivity | AM/FM: 6dB@3kHz, 50dB@9kHz |
| Adjacent-Channel Selectivity | 60dB AM/FM |
| Image Rejection | More than 65dB |
| IF Frequency | AM/FM: 10.695MHz 1stIF, 455KHz 2ndIF |
| RF Gain Control | 45dB adjustable |
| Automatic Gain Control (AGC) | Less than 10dB change in audio output for inputs from 10uV to 100,000uV |
| Squelch | Adjustable, threshold less than 0.5uV. Automatic Squelch control (only AM/FM) 0.5uV |
| Audio Output Power | 2W 16 ohms |
| Frequency Response | AM/FM: 300 to 2800Hz |
Note: Specifications are subject to change without notice due to advancements in technology.
10. User Tips
- Band Switching: To switch bands, remove the 3 jumpers on the internal board. Then, power up the radio while holding the PTT button. Use the channel UP/DOWN buttons on the microphone to select the desired band.
- Frequency Awareness: This radio operates on the 11-meter band (27 MHz), which is common for Citizen Band (CB) radio. It is not designed for the 10-meter band.
- Local Regulations: Always ensure your radio's operation complies with local regulations and certifications (e.g., CE, FCC).
11. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the contact information provided by your retailer or the manufacturer's official website. Keep your purchase receipt as proof of purchase.
