Description

1. Core Electrical Specifications Impedance: 50Ω ±0.25Ω Outer Diameter: 1.25“ (31.75mm) nominal Frequency Range: DC-3.5 GHz (TE11 mode cutoff) Power Handling: 75 kW peak @ 30 MHz 18 kW average @ 1 GHz Attenuation: 0.3 dB/100ft @ 100 MHz 1.0 dB/100ft @ 1 GHz 2.1 dB/100ft @ 3 GHz 2. Mechanical Construction Layer Specification Center Conductor 0.620” OD copper-clad aluminum (CCA) Dielectric Nitrogen-injected foam PE (0.84 εᵣ) Outer Conductor Corrugated copper tube (0.045“ wall) Jacket UV-resistant PVC (black/orange) 3. Performance Data Frequency VSWR Power Rating Velocity Factor 400 MHz 1.02:1 50 kW 88% 900 MHz 1.04:1 30 kW 87% 2 GHz 1.08:1 12 kW 85% 4. Connector Options EIA 3-1/8” Flange (standard for broadcast) 7/16 DIN-AP (50kW+ applications) N-Type (limited to 5 kW) Pressurized Feedthrough (for waveguide interfaces) 5. Installation Parameters Minimum Bend Radius: 18“ (45.7cm) Support Spacing: 6' (1.8m) horizontal 4' (1.2m) vertical Torque Specifications: Flange bolts: 35 ft-lbs 7/16 DIN: 40 Nm Pressurization: 10-15 psi (dry air/nitrogen) 6. Comparison to LDF5-50A Parameter 1-1/4” Hansen Andrews LDF5-50A Max VSWR 1.08:1 1.12:1 Power @ 1GHz 18 kW 15 kW Weight 1.8 lb/ft 2.0 lb/ft Corrosion Resistance MIL-DTL-17 Commercial grade 7. Maintenance Requirements Monthly: Visual inspection for jacket damage Pressure verification (pressurized systems) Bolted connection check Annual: Full VSWR sweep (10MHz-3.5GHz) TDR analysis for impedance anomalies Insulation resistance test (>1000MΩ) 8. Special Application Versions HFC-125-HV: 75kV DC isolation version HFC-125-NAV: Naval-grade saltwater resistant HFC-125-FLEX: Flexible section for seismic zones HFC-125-LL: Low-loss version (0.25dB/100ft @1GHz) 9. Deployment Guidelines Tower Installation: Requires 2-point hoist system Grounding: 4/0 AWG bonding conductors Lightning Protection: Install quarter-wave stubs 10. Ordering Information Standard Lengths: 20' or 50' factory cuts Custom Options: Pre-terminated assemblies NEMA 4X environmental protection FAA-approved aviation markers Custom color jackets