JMA JM-GL3 Coaxial Signal Isolator & Surge Protector

Tired of Snow, Hum, or Wavy Lines on Your TV?

It could be interference or a dangerous ground loop from your cable line. Worse, a sudden power surge or lightning strike through the coax cable can instantly destroy your expensive TV or set-top box.

The JMA JM-GL3 Signal Isolator Protector is your simple, all-in-one solution. This compact device installs in seconds, plugging directly into your TV's coaxial line to protect your equipment from damage and instantly clean up your signal.

Key Features & Benefits

• ⚡ Complete Surge & Lightning Protection Safeguards your TV, set-top box, and receiver from high-voltage surges and lightning strikes coming through the CATV/DTMB line.
• 🚫 Eliminates Signal Interference Acts as a powerful ground loop isolator, effectively filtering out AC noise, hum, and potential differences that cause rolling bars, moiré patterns ("網紋"), and "snowflakes" (雪花點) on your screen.
• 📺 Crystal Clear Picture Quality By removing electrical interference, the JM-GL3 restores a stable, clear, and sharp image, ensuring you get the best possible signal quality from your service.
• 📡 Zero Signal Loss Precision-engineered to operate seamlessly up to 1000MHz with no signal attenuation. Your picture quality and channel reception will not be affected.
• 🔌 Plug & Play Installation Installation is effortless. Simply screw the F-type female end onto your incoming cable line and the F-type male end directly into your TV or set-top box. No power required.

Product Specifications

• Brand: JMA
• Model: JM-GL3
• Product: DTMB/CATV Signal Isolator Protector
• Interface: Imperial F-type Male to F-type Female
• Frequency Range: < 1000MHz
• Primary Function: Lightning Protection, Surge Protection, Anti-Interference, Ground Loop Isolation