Triax MFA 617 Masthead Amplifier User Manual

1. Product Overview

The Triax MFA 617 is a high-performance masthead amplifier designed for signal amplification in antenna systems. It features one input and two outputs, providing a gain of 10 to 25 dB. This amplifier is specifically engineered to support LTE 700 and 800 MHz frequencies, ensuring robust signal reception and distribution.

Key features include:

• Single input, dual output configuration.
• Adjustable gain from 10 to 25 dB.
• LTE 700 and 800 MHz protection.
• Operates on 24 VDC power supply.
• High output stage for strong signal delivery.
• High shielding for interference reduction.
• Corrosion-resistant and weather-resistant housing.
• Easy installation with a turn/lock mechanism and F-connectors.
• RF shielded and CE certified (EN50083).

Figure 1: Triax MFA 617 Masthead Amplifier with its protective cover open, revealing the F-type coaxial connectors for input and outputs, and the internal circuit board with labeling for power and signal flow. The device is housed in a durable, dark grey casing.

2. Installation and Setup

This section provides instructions for the proper installation of your Triax MFA 617 Masthead Amplifier. Ensure all power is disconnected before beginning installation.

2.1. Safety Precautions

• Always disconnect power to all associated equipment before installation or maintenance.
• Ensure proper grounding to prevent electrical hazards.
• Avoid installing the amplifier in locations exposed to extreme temperatures or direct moisture beyond its weather-resistant design.
• Use appropriate tools and follow local electrical codes.

2.2. Mounting the Amplifier

1. Select a suitable mounting location on the mast, ensuring it is easily accessible for connections but protected from physical damage.
2. Utilize the amplifier's integrated turn/lock mechanism for secure attachment to the mast.
3. Ensure the amplifier is mounted vertically with the cable entry points facing downwards to prevent water ingress.

2.3. Connecting Cables

The MFA 617 uses F-type connectors for all signal connections. A specialized F-connector tool is included for ease of installation.

1. Connect the antenna cable to the input port labeled "IN" on the amplifier. Ensure the F-connector is securely tightened.
2. Connect the output cables to the ports labeled "OUT 1" and "OUT 2". These cables will lead to your distribution system or receiving devices.
3. Ensure the 24 VDC power supply is connected to the designated DC IN port. This amplifier requires a 24 Volt DC power source for operation.
4. Use the provided Neoprene soft cable grip to secure cables and provide additional weather protection at the entry points.

3. Operation

Once installed and powered, the Triax MFA 617 Masthead Amplifier operates automatically to amplify incoming signals. No user intervention is typically required for its basic function.

3.1. Gain Adjustment

The amplifier provides an adjustable gain. Refer to the markings on the amplifier unit for specific gain adjustment controls, if available. Adjust the gain to achieve optimal signal strength without overdriving your receiving equipment. Overdriving can lead to signal distortion.

3.2. LTE Protection

The MFA 617 is designed with integrated LTE protection for 700 and 800 MHz bands. This feature helps filter out interference from LTE mobile signals, ensuring a cleaner television signal.

4. Maintenance

The Triax MFA 617 Masthead Amplifier is designed for minimal maintenance due to its robust and weather-resistant construction. However, periodic checks can ensure optimal performance and longevity.

• Visual Inspection: Periodically inspect the amplifier and its connections for any signs of physical damage, corrosion, or loose cables.
• Cable Integrity: Ensure all F-connectors are tight and that the coaxial cables are not kinked or damaged.
• Weather Sealing: Verify that the weather-resistant housing is properly closed and sealed to prevent moisture ingress.
• Cleaning: If necessary, gently clean the exterior of the amplifier with a soft, damp cloth. Do not use harsh chemicals or abrasive materials.

5. Troubleshooting

If you experience issues with your Triax MFA 617 Masthead Amplifier, refer to the following common troubleshooting steps:

6. Technical Specifications

7. Warranty and Support

Triax products are manufactured to high standards and are designed for reliable performance. For specific warranty information, please refer to the documentation provided with your purchase or visit the official Triax website.

For technical support, troubleshooting assistance beyond this manual, or inquiries regarding spare parts, please contact Triax customer service or your authorized dealer. When contacting support, please have your product model number (340517) and purchase details ready.

Note: This manual provides general guidelines. Specific installation and operational requirements may vary based on local regulations and system configurations.