Belden 1855A

Belden 1855A is a high-quality, miniature coaxial cable commonly used in broadcast and video applications. It is part of Belden’s Brilliance series and is designed for HD-SDI (High-Definition Serial Digital Interface) and 3G-SDI video transmission.

It is widely used in broadcast studios, sports production, mobile video production, and professional AV installations where space is at a premium but high signal integrity is required.

Key Features

• Type: Miniature Coaxial Cable (RG59 Type)

• Impedance: 75 ohms

• Bandwidth: Supports HD-SDI (1.5Gbps) and 3G-SDI (3Gbps)

• Centre Conductor: Solid bare copper, 23 AWG

• Dielectric: Gas-injected foam polyethylene (ensuring low attenuation)

• Shielding: Dual shield (tinned copper braid and aluminum foil) for low signal loss and protection against interference

• Jacket: Black PVC

• Applications: Used for high-definition video transmission, camera connections, and broadcast environments

Performance & Distance Capabilities

• 3G-SDI (2.97 Gbps): Up to 70 meters (230 feet)

• HD-SDI (1.485 Gbps): Up to 115 meters (377 feet)

• SD-SDI (270 Mbps): Up to 285 meters (935 feet)