Prestel 4K-A302UH: 4K Video Conferencing Camera User Manual
1. Product Overview
The Prestel 4K-A302UH is a high-performance video conferencing camera designed for professional use. It offers exceptional 4K UHD resolution, advanced PTZ (Pan-Tilt-Zoom) capabilities, and a suite of features for seamless communication.
1.1 Key Features
- 4K UHD Resolution
- 10x Optical Zoom
- ePTZ (Electronic Pan-Tilt-Zoom)
- 6-microphone array with AEC, AGC, ANS
- Bluetooth 5.0 connectivity
- USB 3.0 Type-C and HDMI 2.0 outputs
- Wide Field of View (115° diagonal)
- Auto Framing and Voice Location tracking
1.2 Connections
- USB-C: For data transmission and power (if supported).
- HDMI: For video output.
- RJ45: For network connectivity (if applicable).
- 3.5mm Audio Jack: For audio output (headphone).
- Power Input: HEC3800 (DC12V), compatible with AC110V-AC220V input via adapter, DC12V/2A or 2.5A.
1.3 Interface Description
- USB: USB-C and USB-A ports for connecting to computers or other devices.
- HDMI: HDMI port for connecting to displays or capture devices.
1.4 Audio Output
- Audio Out: Standard audio output port.
- 3.5mm Audio Jack: For connecting headphones or external speakers (audio output).
1.5 Power Input
- Power Port: DC power input.
- 3.5mm Audio Jack: For connecting headphones or external speakers (audio output).
2. Specifications
2.1 General Specifications
The camera is designed for high-quality video conferencing and streaming applications.
2.1.1 Product Type
4K UHD Video Conferencing Camera.
2.1.2 Features
High-quality image capture, advanced audio processing, and versatile connectivity options.
2.2 Main Specifications
Resolution: 4K UHD, high quality, clear image.
Sensor: 8MP CMOS sensor, supporting 4K Ultra HD resolution.
Field of View: 115° (Diagonal), 106° (Horizontal), 72° (Vertical).
Aperture: F2.0.
Optical Zoom: 10x.
Digital Zoom: Up to 6x (or as per menu options).
Minimum Focus Distance: 0.5 meters.
Image Processing: DNR (Digital Noise Reduction), BLC (Backlight Compensation), AE (Auto Exposure).
Video Output: HDMI 4K@30fps, 1080p@60fps; USB 4K@30fps, 1080p@60fps.
Video Compression: MJPEG, YUY2, H.264, H.265, NV12.
Audio: 6 microphones, AEC (Acoustic Echo Cancellation), AGC (Automatic Gain Control), ANS (Automatic Noise Suppression).
Connectivity: Bluetooth 5.0.
Supported Operating Systems: Windows 7, Windows 10, Mac OS X 10.10+, Linux, Android.
2.3 Detailed Specifications
Lens: 115°/106°/72° Field of View, F2.0 Aperture.
Sensor: 8MP CMOS, 16:9 aspect ratio.
Focus: Minimum focus distance 0.5m.
Zoom: 10x Optical Zoom.
PTZ: ePTZ (electronic Pan-Tilt-Zoom) capabilities. Features include Auto Framing and Voice Location tracking.
Image Enhancements: DNR (2D/3D), BLC, AE (Auto Exposure).
SNR (Signal-to-Noise Ratio): 50 dB.
Video Output: HDMI 4K@30fps, 1080p@60fps; USB 4K@30fps, 1080p@60fps.
Video Formats: MJPEG, YUY2, H.264, H.265, NV12.
Audio: 6 microphones + 2 speakers (implied). Audio pickup range up to 8 meters. 2 x 10W speakers.
Power: HEC3800 (DC12V), AC110V-AC220V input, DC12V/2.5A power adapter.
Connectivity: USB 3.0 Type-C (UVC 1.1, UAC 1.0), HDMI 2.0, 3.5mm audio jack, RJ45.
Bluetooth: Bluetooth 5.0.
Supported OS: Windows 7, 8, 10, Mac OS X, Linux, Android.
Operating Environment:
- Temperature: -10°C to 70°C
- Humidity: 20% to 95% (non-condensing)
Storage Environment:
- Temperature: -10°C to 50°C
- Humidity: 20% to 80% (non-condensing)
3. Setup and Menu Operations
3.1 Bluetooth Connection
To connect a Bluetooth device:
- Bluetooth Pairing: Turn on Bluetooth on the camera and the device you wish to connect. Search for available devices on your device and select the camera's Bluetooth name.
- Connection: Follow on-screen prompts to complete the pairing. Once paired, the devices can connect automatically.
- Bluetooth Version: The camera supports Bluetooth 5.0 for stable and fast connections.
Note: Bluetooth connection range is approximately 30 meters.
3.2 Menu System
The camera features an on-screen display (OSD) menu for configuration. Use the navigation buttons (Up, Down, Left, Right, Select) to control the menu.
3.2.1 Menu Options
Navigate the menu using the following options:
- Language: Select the OSD menu language (e.g., English, Chinese).
- Setup: Configure camera settings.
- Image Style: Adjust overall image appearance.
- Auto Framing: Enable/disable automatic framing based on detected subjects.
- Sensitivity: Adjust the sensitivity for Auto Framing.
- Location Sensitivity: Adjust sensitivity for Voice Location tracking.
- Max Framing: Set the maximum zoom level for framing.
- Locate Mode: Choose the subject detection mode (e.g., Smart Mode).
- Prompt Info: Display or hide on-screen prompts.
- Menu Mirror: Flip the OSD menu horizontally.
- Transfers Mode: Select data transfer mode (e.g., BULK).
- Exposure: Control exposure parameters.
- Mode: Auto or Manual exposure.
- EV (Exposure Value): Adjust brightness compensation (-7 to +7).
- BLC (Backlight Compensation): Enable/disable BLC.
- Flicker: Set flicker reduction frequency (50Hz or 60Hz).
- G.Limit: Gain Limit setting (1-15).
- DRC: Dynamic Range Compression setting (1-8).
- Color: Adjust color settings.
- WB Mode: White Balance mode (Auto, Manual).
- RG Tuning: Red/Green color balance adjustment (-10 to +10).
- RW Tuning: Red/White color balance adjustment (-10 to +10).
- Saturation: Adjust color saturation (0% to 100%).
- Hue: Adjust color hue (0-4).
- AWB Sensitivity: Adjust Auto White Balance sensitivity (High, Medium, Low).
- Image: Adjust image properties.
- Brightness: Adjust image brightness (0-14).
- Contrast: Adjust image contrast (0-14).
- Sharpness: Adjust image sharpness (0-15).
- Flip-H: Flip image horizontally.
- Flip-V: Flip image vertically.
- B&W-Mode: Set to Color or Black & White.
- Gamma: Adjust gamma correction (Default, Low, Medium, High).
- Low-Light Mode: Enable/disable low-light enhancement.
- Noise Reduction: Reduce image noise.
- NR-2D: 2D Noise Reduction (0-17).
- NR-3D: 3D Noise Reduction (0-18).
- Video Format: Configure video output format (resolution and frame rate).
- Version: Display camera and audio firmware versions.
- Camera Version: 1.0.0 (2020-12-16)
- Audio Version: 1.0.0 (2022-05-19)
- Restore Default: Reset all settings to factory defaults.
4. Troubleshooting
4.1 Common Issues
- No Image: Ensure the camera is powered on, connected correctly via USB or HDMI, and the input source is selected on the display.
- No Sound: Verify the audio cable connection, check microphone mute status, and ensure the correct audio input device is selected in your conferencing software.
- Image Quality Issues: Adjust focus, check lighting conditions, and configure image settings (brightness, contrast, sharpness) in the menu.
4.2 Power and Connection Problems
- Camera does not power on:
- Check the power adapter connection to the camera and the power outlet.
- Ensure the correct power adapter is used (DC12V/2A or 2.5A).
- Try a different power outlet.
- No video signal via HDMI:
- Ensure the HDMI cable is securely connected at both ends.
- Try a different HDMI cable.
- Confirm the display is set to the correct HDMI input.
- No audio via USB:
- Check USB connection and ensure the camera is recognized as an audio device by the computer.
- Verify audio settings in the conferencing software.
- Bluetooth connection failure:
- Ensure Bluetooth is enabled on both the camera and the connecting device.
- Move devices closer together.
- Restart both devices and try pairing again.
