Blonder Tongue – HDA-12-860-18 – Headend Distribution Amplfier 860 MHz 12 Port Equalized Combiner w/ 18 dB Total Gain

  • Fully Integrated Digital and Analog Combiner and Distribution Amplifier
  • Front Panel Accessible Gain and Slope Controls
  • Combiner Attenuator for Adjustment Control of Digital Signals
  • State of the Art Hybrid IC Circuitry for High Output with Low Distortion
  • Can Be Used As A Combiner and Amplifier or Amplifier and Splitter


The HDA Series of 19″ rack mount headend distribution amplifiers are completely self-contained broadband devices, specifically designed for the distribution of digital and analog CATV signals in the frequency range from 47 to 860 MHz. The HDA is unique in the fact that it integrates the abilities of a passive combiner and a distribution amplifier into a single high performance unit. State of the art hybrid power doubling amplifier modules enable the unit to operate at high output levels while maintaining low distortion characteristics. Four combiner configurations of 16, 12, 8 and 4 ports are available. A -30 dB low-level back matched test port is externally accessible enabling easy in-service testing and adjustment. The chassis design affords excellent heat dissipation allowing operation at high ambient temperatures without sacrificing reliability. Plus, the HDA has a built-in standby power supply with automatic switching capabilities.

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