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Davis RF offers the DRF-400 coaxial cable, a high-quality, low-loss 50-ohm cable comparable to Times Microwave's LMR-400. The DRF-400 is designed for both indoor and outdoor applications, providing excellent performance across a wide frequency range. Specifications: - Impedance: 50 ohms
- Capacitance: 23 pF/ft
- Velocity of Propagation: 85%
- Center Conductor: 10 AWG solid bare copper-clad aluminum
- Dielectric: Gas-injected foam polyethylene
- Shielding:
- First Layer: Bonded aluminum/polyester/aluminum tape (100% coverage)
- Second Layer: 34 AWG tinned copper braid (95% coverage)
- Jacket: Black low-density polyethylene with a nominal outer diameter of 0.405 inches
- Operating Temperature Range: -40°F to +185°F (-40°C to +85°C)
- Bend Radius:
- Minimum Installation: 1 inch
- Minimum Repeated: 4 inches
- Weight: Approximately 0.068 lbs/ft
- RoHS Compliant: Yes
Attenuation and Power Handling: The DRF-400 exhibits low attenuation, making it suitable for various RF applications. Below is a table summarizing its attenuation and power handling capabilities at different frequencies: | Frequency (MHz) | Attenuation (dB/100 ft) | Power Handling (Watts) |
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| 30 | 0.7 | 3,300 | | 50 | 0.9 | 2,570 | | 150 | 1.5 | 1,470 | | 220 | 1.9 | 1,200 | | 450 | 2.7 | 830 | | 900 | 3.9 | 580 | | 1,500 | 5.1 | 440 | | 2,000 | 6.0 | 370 | | 2,500 | 6.8 | 330 | | 3,000 | 7.5 | 270 | | 5,800 | 10.8 | 210 |
These specifications indicate that the DRF-400 is well-suited for applications requiring low signal loss and reliable performance across a broad frequency spectrum.
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