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The M17/RG-142 coaxial cable is a 50-ohm impedance cable widely used in both military and commercial applications due to its robust construction and reliable performance. Below are its key specifications: Electrical Specifications: - Impedance: 50 ohms ± 2
- Capacitance: Approximately 29.4 pF/ft
- Velocity of Propagation: 69.5%
- Maximum Operating Frequency: Up to 12.4 GHz
- Maximum Operating Voltage: 1,400 V RMS
- Shielding Effectiveness: Typically between 40 to 60 dB
Attenuation (Loss) per 100 Feet: | Frequency (MHz) | Attenuation (dB) |
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| 10 | 1.2 | | 30 | 2.1 | | 50 | 2.7 | | 100 | 4.0 | | 400 | 8.0 | | 1,000 | 13.0 | | 1,500 | 16.0 | | 2,000 | 19.0 | | 2,500 | 21.0 | | 3,000 | 24.0 | | 10,000 | 49.0 |
Note: Attenuation values are approximate and can vary based on manufacturer and environmental conditions. Power Handling Capability: | Frequency (MHz) | Power (Watts) |
|---|
| 10 | 5,601 | | 30 | 3,206 | | 50 | 2,468 | | 100 | 1,726 | | 400 | 831 | | 1,000 | 504 | | 1,500 | 401 | | 2,000 | 340 | | 2,500 | 298 | | 3,000 | 267 | | 10,000 | 125 |
Note: Power handling values are approximate and can vary based on manufacturer and environmental conditions. Mechanical Properties: - Center Conductor: Solid silver-coated copper-clad steel (SCCS) with a diameter of 0.037 inches (0.94 mm)
- Dielectric: Solid Polytetrafluoroethylene (PTFE) with a diameter of 0.116 inches (2.95 mm)
- Shields: Double silver-plated copper braids
- Jacket: Fluorinated Ethylene Propylene (FEP) with an overall diameter of 0.195 inches (4.95 mm)
- Weight: Approximately 0.043 pounds per foot (0.064 kg/m)
- Minimum Bend Radius: 1.0 inch (25.4 mm)
- Operating Temperature Range: -55°C to +200°C
These specifications make the M17/RG-142 cable suitable for high-frequency applications requiring low loss, high power handling, and durability in various environmental conditions.
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