Signal Processing Systems : Video Processors : RDL, Radio Design Labs - EZ-HK3

Audio/Video Hum Killer

Series:

Model: EZ-HK3

Audio and Video Ground-Loop Hum Elimination
Unbalanced Stereo Galvanic Isolation
75 Ohm Composite Video Galvanic Isolation
Input and Output RCA Jacks
Switch-Selectable Ground Lift for Output Jacks

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The EZ-HK3 is a superior-quality stereo audio and composite video transformer isolation module for use with unbalanced, high impedance audio inputs and standard 75 ohm composite video. Input and output connections are provided on gold-plated RCA jacks. The shield connection of each INPUT jack is electrically isolated from the case and from the output ground. The shield connection of each OUTPUT jack is connected to the case shield through a rear-panel ground-lift switch. The EZ-HK3 eliminates hum due to ground loops when it is installed between an unbalanced audio/video source, such as a computer or DVD player, and the input of a grounded amplifier and video monitor or projector in an A/V system.

Audio and Video Ground-Loop Hum Elimination
Unbalanced Stereo Galvanic Isolation
75 Ohm Composite Video Galvanic Isolation
Input and Output RCA Jacks
Switch-Selectable Ground Lift for Output Jacks
Portable Use or Permanent Installation
Portable Use or Permanent Installation
Ground-Lift Switch
Excellent low and high video frequency response

Video Output:: Composite Video, 1 V p-p nominal
Output Impedance:: 75 Ω
Video Bandwidth:: 40 Hz to >5 MHz
Audio Input:: Stereo on RCA Phono jacks, -10 dBV nominal, ground-isolated
Audio Input Impedance:: 10 kΩ
Audio Output:: Stereo on RCA Phono jacks, -10 dBV nominal
Audio Output Impedance:: 10 kΩ
audio frequency response:: 20 Hz to 20 kHz (+/- 1 dB)
Audio Total Harmonic Distortion:: <0.05% (1 kHz)
Crosstalk (channel to channel):: <-75 dB (20 Hz to 10 kHz), <-65 dB (10 kHz to 20 kHz)
Crosstalk (video to audio):: <-80 dB (referred to -10 dBV)
Crosstalk (audio to video):: <-85 dB (referred to 1 V p-p)
Output Ground Isolation:: Switch-selectable (lifts audio and video grounds)
Gain (audio and video):: Unity nominal (passive circuit)
Case dimensions:: 2.9" (7.4 cm)W x 3" (7.6 cm)D
Mounting size:: 1/6 rack width
Number of Inputs: 1
Number of Outputs: 1
Output Impedance: 75 ohm
Depth: 3 in
Width: 2.90 in
Shipping Weight: 0.45 lbs

AV-HK1X - HUM KILLER Audio Isolation Module XLR input and output

EZ-HK1 - Stereo Audio Hum Killer

EZ-HK2 - Composite Video Hum Killer

Installation and Operation Manual 827 kb - Instructions

Project List

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Audio/Video Hum Killer

Series:

Model: EZ-HK3

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