1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of the Fracarro 223392 4-Input 30dB Amplifier. This device is designed to amplify Digital Terrestrial Television (DTT) signals, ensuring optimal reception quality. It features four inputs for various frequency bands and offers separate amplification for VHF and UHF signals, with internal adjustments to prevent accidental tampering. Please read this manual thoroughly before installation and use.
2. Safety Information
Always observe the following safety precautions to prevent injury and damage to the device:
- Ensure the power supply is disconnected before making any connections or adjustments.
- Do not expose the amplifier to moisture or extreme temperatures outside its specified operating range.
- Only use the specified 12VDC power supply.
- Avoid placing the amplifier near heat sources or in direct sunlight.
- Do not attempt to open or repair the device yourself. Refer all servicing to qualified personnel.
3. Product Overview
The Fracarro 223392 is a mast-mounted amplifier designed for enhancing DTT signals. It features a robust, shielded design for reliable performance.
Figure 1: Fracarro 223392 4-Input 30dB Amplifier with its protective cover partially open, revealing four F-type input connectors and corresponding gain adjustment dials. Labels such as 'DVB-T' and '30dB' are visible, indicating its function and capabilities.
Key Features:
- 4 Inputs for various frequency bands.
- Separate amplification for VHF and UHF bands.
- Internal gain adjustments to prevent accidental changes.
- Low noise figure for clear signal reception.
- Fully shielded for interference protection.
- Easy and quick installation with a pole mounting collar.
- Telepowering available on each input (100 mA total).
4. Setup and Installation
Follow these steps for proper installation of your Fracarro 223392 amplifier:
- Mounting: Secure the amplifier to a mast or pole using the provided mounting collar. The collar is suitable for poles up to 60 mm in diameter. Ensure the amplifier is positioned to minimize cable length to the antenna.
- Antenna Connections: Connect your antennas to the appropriate F-type input connectors on the amplifier. The amplifier has four inputs:
- Input 1: Band III + DAB (174 ÷ 240 MHz)
- Input 2: Band IV (470 ÷ 558 MHz)
- Input 3: Band V (566 ÷ 862 MHz)
- Input 4: UHF (470 ÷ 862 MHz)
- Output Connection: Connect the amplifier's single output to your TV or distribution system using a high-quality coaxial cable with F-type connectors.
- Power Supply: The amplifier requires a 12VDC power supply. This power is typically supplied via the output coaxial cable (telepowering) from a compatible power inserter or TV. Ensure the power supply provides 12VDC and up to 100mA total for telepowering.
- Gain Adjustment: Once powered, carefully open the amplifier's cover to access the internal gain adjustment dials. Adjust the gain for each input band as needed to achieve optimal signal strength without overdriving the signal. Start with lower gain settings and gradually increase if necessary.
5. Operating Instructions
The Fracarro 223392 amplifier operates automatically once properly installed and powered. Its primary function is to boost weak DTT signals from your antennas. No further user interaction is typically required after initial setup and gain adjustment.
- Ensure all connections are secure and the power supply is active.
- Monitor your TV's signal quality. If signal issues arise, re-check connections and gain settings.
6. Maintenance
The Fracarro 223392 amplifier is designed for minimal maintenance.
- Cleaning: Periodically inspect the amplifier for dirt or debris. Clean the exterior with a soft, dry cloth. Do not use liquid cleaners or solvents.
- Connections: Annually check all F-type connections to ensure they are tight and free from corrosion. Loose connections can lead to signal loss or interference.
- Environmental Protection: Ensure the amplifier's cover is securely closed to maintain its IP20 protection rating against dust and moisture.
7. Troubleshooting
If you experience issues with your amplifier, refer to the following troubleshooting guide:
| Problem | Possible Cause | Solution |
|---|---|---|
| No signal or weak signal | No power to amplifier | Check 12VDC power supply and telepowering connection. Ensure power inserter is active. |
| No signal or weak signal | Loose or incorrect cable connections | Verify all F-type connectors are securely tightened to the correct inputs/output. |
| No signal or weak signal | Incorrect gain settings | Adjust the internal gain dials. Avoid setting gain too high, which can cause signal distortion. |
| Interference or pixelation | Over-amplification (signal too strong) | Reduce the gain settings for the affected input band. |
| Interference or pixelation | External interference | Ensure all cables are shielded and properly routed away from power lines or other electronic devices. |
8. Specifications
| Feature | Specification |
|---|---|
| Model Number | 223392 |
| Manufacturer | Fracarro |
| Number of Inputs | 4 |
| Number of Outputs | 1 |
| Input 1 (Band III + DAB) Bandwidth | 174 ÷ 240 MHz |
| Input 1 (Band III + DAB) Gain | 30 dB |
| Input 1 (Band III + DAB) Noise Figure | 4 dB |
| Input 2 (Band IV) Bandwidth | 470 ÷ 558 MHz |
| Input 2 (Band IV) Gain | 30 dB |
| Input 2 (Band IV) Noise Figure | 8 dB |
| Input 3 (Band V) Bandwidth | 566 ÷ 862 MHz |
| Input 3 (Band V) Gain | 22 dB |
| Input 3 (Band V) Noise Figure | 8 dB |
| Input 4 (UHF) Bandwidth | 470 ÷ 862 MHz |
| Input 4 (UHF) Gain | 22 dB |
| Input 4 (UHF) Noise Figure | 8 dB |
| Gain Adjustment Range | 20 dB |
| Max Output Level (IM3 -35 dBc, 2 tones, DTT signals) | 116 dBuV (Band III+DAB), 121 dBuV (Band IV, V, UHF) |
| Power Supply | 12 VDC |
| Telepowering | 12V, 100 mA max (total) |
| Connectors | F-female |
| Working Temperature | -10 °C to +55 °C |
| Protection Rating | IP20 |
| Compliance Standard | EN 50083-2 (89/336/EEC-EMC) |
9. Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or contact Fracarro customer service. Keep your proof of purchase for warranty claims.
