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Seco-Larm VG-1C12YQ 4-in-1 HD Ground Loop Isolator

Seco-LarmSKU: VG-1C12YQ

Sale price$15.51
Usually ships within 3-5 business days

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The ENFORCER 4-in-1 HD Ground Loop Isolator is a passive device that helps to reduce ground loop interference caused by a difference in ground potential. Ground loop isolators can be deployed in new installations or added to existing installations.

Compatible with TVI, CVI, AHD, and Analog signals, reduces ground loop interference, built-in surge protection, BNC terminals, passive operation.

  • TVI / CVI / AHD / Analog compatible
  • Reduces ground loop interference
  • BNC terminals for easy installation
  • Built-in surge protection
  • Prevents video-signal distortion, picture tearing, cross talk, and other picture quality problems
  • Passive operation – No external power required
  • Use with standard BNC coax cables or with 4-in-1 HD video baluns



Bandwidth Video DC to 40MHz
Insertion Loss ≤0.5dB
Frequency Response 5Hz~10MHz
Isolation Voltage 800VDC (min.)
Insulation Resistance ≥100MΩ
Surge Protection 4kV, 10/700μs IEC 61000-4-5/1955
Connector- In BNC Male
Connector- Out BNC Female
Impedance 75Ω (BNC-to-BNC)
Cable Length 7-7/8″ (200mm) each side
Material ABS Plastic
Operating Humidity 0~95% non-condensing
Operating Temperature -4°~140° F (-20°~60° C)
Dimensions 1-11/16″x1-1/8″x1-3/16″ (43x28x21 mm)
Weight 2.0-oz (57g)



Wavy or ghost image if
connected to image processor
(e.g., multiplexer or DVR), but
not if directly to monitor
  • Move the cable away from possible sources of interference
  • Ensure that the same twisted pair connects to a balun at both ends of the cable
  • Replace the cable with a new cable
Image background flutters between dark and light
  • Remove a local power source, or adjust the monitor’s brightness and contrast
Image is wavy and shakes
  • Try reversing the polarity of the two wires at one end of the cable
Image is weak or faded
  • Reduce the cable length
  • Replace with a higher-grade cable. CAT5 cable meets the specifications in the manual. CAT6 cable allows longer range.
No image
  • Double-check that the cables were connected properly
  • Run a continuity test on all wires in the cable

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