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    Cabletronix CTHDA-1P/2P/1A — 1GHz Drop Amplifier Installation Manual

    August 31, 2026 3 min read

    Installation manual for the Cabletronix CTHDA-1P, CTHDA-2P, and CTHDA-1A wall-mounted 1GHz multi-media drop amplifiers for CATV systems.

    💾 Download Original PDF 🛒 View Product
    Full text manual (for reference)

    Overview

    The Cabletronix CTHDA-1P, CTHDA-2P, and CTHDA-1A are wall-mounted 1GHz multi-media drop amplifiers for CATV systems requiring two-way multi-media networking. They're low-noise amplifiers with high port-to-port isolation, 6KV surge protection on all ports, electrostatic discharge protection, and a zinc die-cast housing to prevent RFI. They can be remotely powered over coax, line-powered through an RF port, or externally powered through a dedicated "power-in" port.

    Package Contents

    • One CTHDA-1P, CTHDA-2P, or CTHDA-1A drop amplifier
    • One CTHDA power supply
    • One CTHDA installation manual

    Specifications

    Parameter CTHDA-1P CTHDA-2P CTHDA-1A
    Input ports 1 1 1
    Output ports 1 2 1
    Forward path 54–1,000 MHz 54–1,000 MHz 54–1,000 MHz
    Reverse path 5–42 MHz 5–42 MHz 5–42 MHz
    Forward gain 13.5dB 10dB 14dB
    Reverse gain (loss) -1.6dB -5dB 10dB
    Isolation (out-out) N/A 18dB minimum N/A
    Noise figure 3dB typical, 4dB max 3dB typical, 4dB max 3dB typical, 4dB max
    Return loss (in-out) 18dB typical 18dB typical 18dB typical
    Power supply voltage 12–16V, 200mA 12–16V, 200mA 12VDC, 300mA
    Surge protection (all ports) 6KV 6KV 6KV
    Connections F Type Female F Type Female F Type Female
    Impedance 75 Ohms 75 Ohms 75 Ohms
    Operating temperature -40°C to +60°C -40°C to +60°C -40°C to +60°C

    ⚠ Note to System Installer

    System installer must adhere to Article 820-40 of the NEC, which provides guidelines for proper grounding and specifies that the cable ground shall be connected to the grounding system of the building, as close to the point of cable entry as practical.

    Installation

    1. Unpacking & Handling

    Each unit ships fully assembled and factory tested. Ensure all accessories are removed from the container before discarding packing material.

    2. Mechanical Inspection

    Inspect front and rear for shipping damage. Confirm the equipment is clean and no connectors are broken, damaged, or loose. Contact 1-610-429-1511 if damage is found.

    3. Product Diagram / Ports

    • Input — coaxial RF input from CATV or satellite drop
    • Power In — direct power input from the power supply for local powering
    • Power In / RF Out — power input when using the RF distribution network as the power source

    4. Hardware Connections

    1. Mount the CTHDA securely to a wall or equipment rack using screws or bolts through the mounting tabs.
    2. Connect a 75-ohm coaxial cable with F-connectors from the RF source (CATV or satellite antenna) to the CTHDA's RF In port.
    3. Connect a 75-ohm coaxial cable with F-connectors from the CTHDA's Output port to the RF distribution network.
    4. Power the CTHDA using one of two methods:
      • Local AC outlet: run an appropriate length of RG-6 coax with quality male F connectors on each end, connect one end to the CTHDA's Power In port and the other to the included power supply, then plug the power supply into an AC outlet.
      • Remote powering via RF network: install a two-way power-passing splitter (e.g. Cabletronix HSU-2PP) in the RF distribution network near an AC outlet; connect the coax from the splitter's power-passing port to the CTHDA's Power In/RF Out port; connect the splitter's non-power-passing port to the TV/entertainment device; connect the splitter and power supply to AC power.

    5. Troubleshooting

    • Use quality multiple-shielded cables with quality radial or compression F-connectors.
    • Ensure F-connector center conductors make solid contact with the CTHDA's input, output, and power ports.
    • Further support: www.northamericancable.com, www.cabletronix.com, or Cabletronix sales engineers at 1-610-429-1511.