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Blonder Tongue

Blonder Tongue OC-8d Output Combiner

$42.95

The Blonder Tongue OC-8d is an 8-port passive output combiner designed for combining multiple RF signals into a single output. It is commonly used in headends to combine signals from various modulators and processors. The OC-8d features high isolation between ports and low insertion loss across a frequency range of 5-1000 MHz. It also includes a -20dB test port for monitoring the output signal without disrupting service.

View Product Features
  • Passive Output Combiner: The OC-8d is a passive device, meaning it doesn't require external power for its operation.
  • 8 Input Ports: It accepts up to 8 individual RF signals.
  • Single Output: The combined signal is output through a single port.
  • Frequency Range: Designed to combine signals within the 5-1000 MHz frequency range.
  • High Isolation: Provides good isolation between input ports, minimizing interference between combined signals.
  • Low Insertion Loss: Minimizes signal degradation when combining signals.
  • Test Port: Includes a -20dB test port for signal monitoring and troubleshooting.
  • Impedance: Typically has a 75-ohm impedance for both input and output ports.
  • Applications: Widely used in cable television headends, digital signage, and other applications requiring signal combining.
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About the Blonder Tongue OC-8d Output Combiner

The Blonder Tongue OC-8d is a professional-grade RF output combiner designed for use in broadband cable television (CATV) and multimedia distribution systems. Its primary function is to merge multiple RF signals from different sources—such as modulators, satellite receivers, or off-air antennas—onto a single coaxial cable for distribution across a building or campus. This device is essential in headend and hub locations of MATV (Master Antenna Television) and SMATV (Satellite Master Antenna Television) systems, hotels, hospitals, multi-dwelling units (MDUs), and educational facilities where centralized signal management is required.

The combiner features eight input ports, each with adjustable attenuation to balance signal levels from various sources, ensuring a uniform and optimized output signal. It is engineered to maintain signal integrity across a broad frequency range, typically covering the standard CATV spectrum. The unit provides high isolation between input ports to prevent interference and cross-modulation, which is critical for maintaining clear picture quality across all channels. Constructed with a robust metal housing, it is designed for rackmount installation in equipment closets or headend rooms, ensuring reliable performance in continuous operation environments.

By consolidating multiple signal paths into one, the Blonder Tongue OC-8d simplifies system design, reduces cable clutter, and enhances the efficiency of RF distribution networks. Its professional build and precise control over signal levels make it a trusted component for system integrators and engineers deploying and maintaining commercial-grade video distribution infrastructure.

Key Features

  • Passive Output Combiner: The OC-8d is a passive device, meaning it doesn't require external power for its operation.
  • 8 Input Ports: It accepts up to 8 individual RF signals.
  • Single Output: The combined signal is output through a single port.
  • Frequency Range: Designed to combine signals within the 5-1000 MHz frequency range.
  • High Isolation: Provides good isolation between input ports, minimizing interference between combined signals.
  • Low Insertion Loss: Minimizes signal degradation when combining signals.
  • Test Port: Includes a -20dB test port for signal monitoring and troubleshooting.
  • Impedance: Typically has a 75-ohm impedance for both input and output ports.
  • Applications: Widely used in cable television headends, digital signage, and other applications requiring signal combining.

Blonder Tongue OC-8d Output Combiner Specs

RF Performance
Input Ports
8 (F-type connectors)
Output Ports
1 (F-type connector)
Frequency Range
Typically covers standard CATV range (e.g., 5-1002 MHz)
Insertion Loss
Low, specific value per model (e.g., <15 dB)
Isolation
High isolation between input ports (e.g., >30 dB)
Attenuation
Adjustable per input for signal level balancing
Impedance
75 ohms
Physical & Installation
Housing
Metal enclosure
Mounting
Standard 19-inch rackmount (1RU typical)
Power
Passive device (does not require external power)
Dimensions
Rackmount size (approx. 44 mm H x 483 mm W x depth varies)
Connectors
F-type (compression or twist-on, model dependent)
General
Intended Use
Combining multiple RF sources (modulators, satellite receivers, antennas) into a single distribution line
Applications
MATV/SMATV headends, hotels, hospitals, MDUs, educational facilities, corporate campuses
Manufacturer
Blonder Tongue

Key Features

  • Passive Output Combiner: The OC-8d is a passive device, meaning it doesn't require external power for its operation.
  • 8 Input Ports: It accepts up to 8 individual RF signals.
  • Single Output: The combined signal is output through a single port.
  • Frequency Range: Designed to combine signals within the 5-1000 MHz frequency range.
  • High Isolation: Provides good isolation between input ports, minimizing interference between combined signals.
  • Low Insertion Loss: Minimizes signal degradation when combining signals.
  • Test Port: Includes a -20dB test port for signal monitoring and troubleshooting.
  • Impedance: Typically has a 75-ohm impedance for both input and output ports.
  • Applications: Widely used in cable television headends, digital signage, and other applications requiring signal combining.
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