Sennheiser GZL RG 58 - 1M Coaxial cable with BNC connector, 50 Ohm, 1m

Sennheiser GZL RG 58 - 1M Coaxial Cable

The Sennheiser GZL RG 58 - 1M (Article Number: 700160) is a professional-grade, 50-Ohm radio frequency (RF) coaxial antenna cable assembly. Measuring exactly 1 meter (3.3 feet) in length, this short patch cable is designed to build dense, interconnected RF pathways inside your equipment racks. It is the primary jumping connection used to link wireless microphone receivers, antenna splitters (like the Sennheiser ASA 214), active antenna combiners, and internal rack patch-bays together.

Key RF Signal Architecture

True 50-Ohm Impedance Match: Professional wireless audio networks rely entirely on a uniform 50-Ohm impedance architecture. This short 1-meter cable guarantees a solid 50-Ohm profile from end to end, eliminating localized standing wave reflections and phase mismatches that corrupt signal paths and trigger dropouts.

Optimized Back-Rack Patching: Because it spans just 1 meter, this cable minimizes back-of-the-rack cable clutter. Keeping antenna lines short prevents long coils of excess wiring from dangling near electrical power strips, heavily reducing the risk of electromagnetic interference degrading your signal.

Ultra-Low Resistance BNC Connections: Both ends of the cable terminate in heavy-duty, male-to-male BNC connectors. These utilize a standardized twist-and-lock coupling mechanism to safeguard your equipment hooks against mechanical vibration, accidental tugs, or moving rack frames.

Technical Specifications Matrix

RF Signal Loss and Attenuation Metrics

Coaxial lines experience a microscopic amount of signal attenuation over distance. Because this patching segment is kept down to a tight 1 meter, line loss is virtually negligible. At a standard 20 degrees Celsius environment, the attenuation curves for this specific 1-meter run parse as follows:

System Implementation Guidelines

Keep Connections Clean: Because BNC connections operate at very high frequencies, microscopic bits of dust, oil from skin contact, or corrosion inside the barrel can mimic a major signal drop. Keep the internal pin contacts clean. If a rack link has been sitting unused or exposed to outdoor festival dust, blow it clear with compressed air before locking it down.

Protect the Bend Radius: Never pinch, kink, or force this cable into a tight, sharp 90-degree bend to clear a shallow rack lid. Bending the wire too sharply forces the center copper strand out of position relative to the outer foil shield. This localized physical change instantly skews the uniform 50-Ohm impedance shape, creating an RF bottleneck that bounces signal backward and reduces overall reception quality. Use smooth, looping layouts behind your gear.