Cabo coaxial sem fios Belden H155A02 50 Ohm (H155, dupla blindagem, bainha PE, 500 m)

For RF and wireless installations where signal integrity is critical, the Belden H155A02 coaxial cable delivers consistent 50 Ohm performance across a wide frequency range. Its double shielding and low-loss construction make it a reliable backbone for WLAN, GSM, GPS, and other wireless communication systems, even in environments with high electromagnetic interference.

Who is it for

This cable is intended for professional installers, system integrators, and network engineers who need a dependable transmission line for antennas, access points, and RF equipment. It is suitable for both indoor and outdoor deployments where a flexible yet durable coaxial cable is required.

Main features

• 50 Ohm impedance precisely matched for wireless applications
• Double shielding: aluminium foil plus tinned copper braid for superior EMI rejection
• Copper-clad aluminium inner conductor (1.4 mm) balances performance and cost
• Foamed polyethylene dielectric (3.9 mm) ensures low attenuation and high velocity of propagation (80%)
• Polyethylene jacket (5.4 mm OD) offers good weather resistance and flexibility
• Supports frequencies up to 3 GHz, covering most wireless bands
• Supplied in a 500 m master reel for bulk installations

Specifications

• Impedance: 50 Ω
• Cable type: Coaxial (H155 standard)
• Inner conductor: Copper-clad aluminium, 1.4 mm diameter
• Dielectric: Foamed polyethylene, 3.9 mm diameter
• Shielding: Aluminium foil + tinned copper braid (double shielded)
• Jacket: Polyethylene, 5.4 mm outer diameter
• Velocity of propagation: 80%
• Capacitance: 80 pF/m
• Max operating frequency: 3 GHz
• Attenuation: 20 dB/100m @ 1 GHz, 32 dB/100m @ 2.4 GHz
• Operating temperature: -40°C to +85°C
• Minimum bending radius: 25 mm (single bend)
• Max voltage rating: 1000 V
• Length: 500 m per reel

Tips

For best performance, use connectors designed for H155 cables and ensure proper weatherproofing for outdoor connections. Avoid exceeding the minimum bending radius to prevent signal degradation. This cable is ideal for long runs where low loss is essential, such as connecting outdoor antennas to indoor equipment.