1. Introduction
The TYT TH-9000D Plus/Pro is a high-power mobile amateur radio transceiver designed for reliable communication in vehicles. It offers multiple frequency band options (VHF: 136-174MHz, 220-260MHz; UHF: 400-490MHz) and adjustable output power up to 60W (VHF) or 45W (UHF). This manual provides essential information for the proper setup, operation, and maintenance of your radio.

Figure 1: TYT TH-9000D Plus Mobile Radio with Microphone
2. Package Contents
Before proceeding with installation, please verify that all items are present in your package:
- TYT TH-9000D Plus/Pro Mobile Radio Unit
- Handheld Microphone
- Mounting Bracket
- DC Power Cable
- User Manual (this document)
- Accessory Bag (screws, etc.)

Figure 2: Included components in the package
3. Setup and Installation
3.1 Mounting the Radio
- Choose a secure and accessible location in your vehicle for the radio unit. Ensure it does not obstruct driving or safety devices.
- Use the provided mounting bracket as a template to mark drilling locations.
- Drill pilot holes and securely attach the mounting bracket using the supplied screws.
- Slide the radio unit into the mounting bracket until it locks into place.
3.2 Power Connection
- Connect the supplied DC power cable to the radio's power input port.
- Connect the red wire of the power cable to the positive (+) terminal of your vehicle's 13.8V DC power source (typically directly to the battery or a fused accessory circuit).
- Connect the black wire of the power cable to the negative (-) terminal or a good chassis ground point.
- Ensure all connections are secure and properly insulated to prevent short circuits.
3.3 Antenna Connection
- Connect a suitable VHF/UHF antenna (not included) to the antenna connector on the rear of the radio.
- Ensure the antenna is properly tuned for the operating frequency band to prevent damage to the radio's transmitter.
3.4 Microphone Connection
- Plug the microphone cable into the microphone jack on the front panel of the radio.

Figure 3: Front panel controls and warning label
Important Note: The radio's surface can become hot during prolonged use. Avoid touching the heat sink area after extended operation.
Firmware Warning: This unit comes with the latest firmware. Do not attempt to update the firmware further, as this may cause irreversible damage or malfunction.
4. Operating Instructions
4.1 Basic Operation
- Power On/Off: Press and hold the power button (usually marked with a ⑂ symbol) on the front panel to turn the radio on or off.
- Volume Control: Rotate the VOL knob to adjust the audio output level.
- Channel/Frequency Selection: Use the Channel knob or the microphone's keypad to select desired channels or input frequencies.
- Squelch Level (SQL): Adjust the SQL setting (0-9 grades) to control the receiver's sensitivity to background noise. A higher setting requires a stronger signal to open the squelch.
- Transmit (TX): Press the PTT (Push-To-Talk) button on the microphone to transmit. Release it to receive.
4.2 Advanced Features
- Output Power Selection: Cycle through High/Mid/Low power settings as needed for your communication range and power consumption requirements.
- CTCSS/DCS: Set CTCSS (Continuous Tone-Coded Squelch System) or DCS (Digital Coded Squelch) tones for private group communication and to filter out unwanted signals.
- 1750Hz Tone: Used for accessing repeaters.
- Frequency/Channel Scanning: Activate scanning to monitor active channels or frequencies within a programmed range.
- Voice Commander: Enables voice-activated transmission (VOX) for hands-free operation.
- Repeater Offset Shift: Configure the frequency offset for repeater operation.
- Keypad Lock: Lock the keypad to prevent accidental changes to settings.
- Contact Book: Store and recall frequently used contacts or frequencies.
- DTMF/2 Tone/5 Tone: Utilize these signaling methods for selective calling or remote control functions.
- ANI ID: Automatic Number Identification for transmitting your radio's unique ID.
- Remote Kill/Stun/Activate/Revive: Functions for remotely disabling, enabling, or reviving another radio.
- Emergency Alarm: Activates an alarm signal in emergency situations.
- Wide/Narrow Band Setting: Select between wide or narrow bandwidth for communication, depending on local regulations and channel spacing.
- TX Inhibit: Prevents accidental transmission.
- Busy Channel Lock-Out (BCLO): Prevents transmission on an occupied channel.
- Channel Name Editing: Customize channel names for easier identification.
- Reverse Frequency: Swaps transmit and receive frequencies, useful for direct communication when a repeater is used.
- Talk Around: Allows direct communication on repeater input frequency, bypassing the repeater.
- Scrambler (Optional): Encrypts voice communication for privacy.
- Voice Prompt: Provides audible feedback for radio operations.
- Time-out Timer (TOT): Limits transmission duration to prevent accidental long transmissions.
- Auto Power Off: Automatically turns off the radio after a period of inactivity.
- VFO Step Setting: Configure frequency tuning steps (5/6.25/10/12.5/20/25/50kHz).
5. Maintenance
- Cleaning: Use a soft, damp cloth to clean the radio's exterior. Do not use harsh chemicals or solvents.
- Environmental Conditions: Avoid exposing the radio to extreme temperatures, direct sunlight for prolonged periods, dust, or moisture.
- Connections: Periodically check all cable connections (power, antenna, microphone) to ensure they are secure and free from damage.
- Heat Dissipation: Ensure the radio's heat sink has adequate ventilation, especially during high-power transmissions.
6. Troubleshooting
If you encounter issues with your TH-9000D Plus/Pro, consider the following basic troubleshooting steps:
- No Power: Check power cable connections, vehicle battery voltage, and inline fuses.
- No Audio: Ensure volume is turned up and squelch is not set too high. Check microphone connection.
- Cannot Transmit: Verify antenna connection, check power output settings, ensure BCLO is not active, and confirm the PTT button is functioning.
- Poor Reception/Transmission: Check antenna SWR (Standing Wave Ratio), antenna connection, and ensure you are within range of the other station or repeater.
- Radio is Hot: Reduce transmit power or allow the radio to cool down. Ensure proper ventilation around the heat sink.
For more complex issues, please refer to the warranty and support section.
7. Specifications

Figure 4: Technical Specifications Overview
| Feature | Specification |
|---|---|
| Frequency Range | VHF: 136-174MHz, 245-246MHz (220-260MHz); UHF: 400-490MHz (Optional bands) |
| Channel Capacity | 200 |
| Channel Spacing | 5/6.25/8.33/10/12.5/15/20/25/30/50KHz |
| Frequency Stability | 2.5ppm |
| Operating Temperature | -20℃ ~ +60℃ |
| Operating Voltage | 13.8V DC ± 15% |
| Dimensions (HxWxD) | 145mm x 190mm x 47mm |
| Weight (with bracket) | 1200g |
| Feature | Specification |
|---|---|
| Reference Sensitivity | 0.2μV @ 12dB SINAD |
| Operating Bandwidth | 60dB@12.5KHz / 70dB@25KHz |
| Adjacent Channel Selectivity | 60dB@12.5KHz / 70dB@25KHz |
| Inter-modulation Rejection | ≥60dB / ≥65dB |
| Spurious Response Rejection | ≥70dB |
| Rated Audio Response | +1 - +3dB |
| Rated Audio Distortion | <5% |
| FM Hum & Noise | ≥40dB@25KHz / ≥45KHz @12.5KHz |
| Feature | Specification |
|---|---|
| RF Power | 45W/25W/10W (UHF) / 60W/25W/10W (VHF) |
| Frequency Modulation | 11kΦF3E / 16kΦF3E |
| Modulation Distortion | <5% |
| FM Noise | ≥36dB@25KHz / ≥40KHz @12.5KHz |
| Adjacent Channel Power | ≥60dB@12.5KHz / ≥70KHz @25KHz |
| Audio Response | +1 - +3dB |
| Audio Distortion | <5% |
8. Warranty and Support
The TYT TH-9000D Plus/Pro Mobile Radio Station comes with a warranty:
- Main Radio Body: One (1) Year Warranty
- Battery, Charger, and other Accessories: Three (3) Months Warranty
For technical support, warranty claims, or service inquiries, please contact your authorized dealer or the manufacturer's customer service. Please have your product model and serial number ready when contacting support.
9. User Tips
- Band Selection: The TH-9000D Plus/Pro is available in different frequency configurations (VHF 136-174MHz, VHF 220-260MHz, UHF 400-490MHz). Ensure you have selected the correct model for your intended operating band. The radio itself does not include all three bands simultaneously unless specified as a tri-band variant.
- Firmware: As noted in the setup section, the device comes with the latest stable firmware. Avoid attempting any further firmware updates to prevent potential issues.
- Power Output: Utilize the High/Mid/Low power settings appropriately. Using lower power when possible can reduce heat generation and extend the lifespan of the radio.
- Antenna Matching: Always use an antenna that is properly matched to the operating frequency band to ensure optimal performance and prevent damage to the radio's final amplifier stage.