Description

1. Fundamental Specifications Impedance: 50Ω precision-matched Outer Diameter: 7/8“ (22.2mm) nominal Frequency Range: 0-7.5 GHz (fundamental mode) Power Handling: 25 kW peak @ 30 MHz 5 kW average @ 1 GHz Attenuation: 0.7 dB/100ft @ 100 MHz 2.3 dB/100ft @ 1 GHz 2. Mechanical Construction Layer Material Specification Center Conductor Silver-plated copper 0.375” diameter Dielectric Nitrogen-injected foam PE 0.82 εᵣ Outer Conductor Corrugated copper Seam-welded construction Jacket UV-stabilized LDPE Orange/Black available 3. Electrical Performance Frequency VSWR Power Rating Velocity Factor 500 MHz 1.03:1 15 kW 88% 2 GHz 1.08:1 8 kW 87% 5 GHz 1.15:1 3 kW 85% 4. Standard Connector Options N-Type: Up to 3 GHz operation 7/16 DIN: Preferred for >1kW applications Flange Mount: For waveguide transitions EIA Standard: 3-1/8“ flange models 5. Installation Requirements Minimum Bend Radius: 10” (25cm) Support Interval: Every 4' (1.2m) horizontal Torque Specifications: N-type: 20 ft-lbs 7/16 DIN: 40 Nm Pressurization: 15 psi standard (30 psi max) 6. Comparison to LDF4-50A Parameter Hansen 7/8" LDF4-50A Max Frequency 7.5 GHz 6 GHz Power @ 1GHz 5 kW 3.8 kW Weight 0.9 lb/ft 1.1 lb/ft Flexibility Semi-rigid Flexible 7. Maintenance Procedures Quarterly: Visual inspection for jacket damage VSWR sweep test Connector torque check Annual: TDR analysis Dry air purge (pressurized systems) Insulation resistance test (>1000MΩ) 8. Special Variants HFC-78-P: Pressurized version (0-30 psi) HFC-78-AL: Aluminum outer conductor (lightweight) HFC-78-HV: High-voltage version (50kV DC rating) 9. Ordering Information Standard lengths: 20' or 50' reels Custom pre-terminated assemblies available NEMA 4X rated versions for harsh environments 10. Safety Considerations RF Burn Hazard: 5W threshold for accessible areas Arc Prevention: 2.5x nominal voltage spacing required Grounding: Must comply with IEEE 80-2013