Micro Coaxial Cable-Micro Coaxial Cable factory-(FRS)-FRS
文章38.75-5同轴电缆的特点 Characteristics of 75-5 Coaxial Cable
Conductor: A central solid or stranded copper core (typically 1.0–1.2 mm in diameter) ensures efficient signal transmission.
Dielectric Insulation: A foam polyethylene (PE) or solid polyethylene layer surrounds the conductor, providing stable impedance and minimizing signal loss.
Shielding:
Inner Shield: Aluminum foil or copper braid to block electromagnetic interference (EMI).
Outer Shield: Additional braided copper or aluminum for enhanced noise resistance.
Jacket: A durable PVC or weather-resistant outer layer protects against physical damage, moisture, and UV exposure.
2. Key Electrical Characteristics
Impedance: 75 ohms (±3Ω tolerance), optimized for video and RF signal transmission.
Frequency Range: Suitable for frequencies up to 1 GHz, making it ideal for analog video, CCTV, and broadband applications.
Attenuation: Approximately 6.9 dB/100m at 100 MHz and 22 dB/100m at 1 GHz, depending on materials and shielding.
Capacitance: ~54 pF/m, ensuring minimal signal distortion.
Velocity of Propagation: ~85% (for foam dielectric), indicating efficient signal speed.
3. Advantages of 75-5 Coaxial Cable
High Signal Integrity: The dual-layer shielding and 75Ω impedance minimize EMI and signal loss, critical for video and data transmission.
Durability: Robust outer jacket resists wear, moisture, and temperature fluctuations (-40°C to +80°C).
Cost-Effective: Balances performance and affordability compared to higher-grade cables like RG-11.
Flexibility: Suitable for indoor and outdoor installations, including tight spaces and long-distance runs.
4. Common Applications
Broadcast and CCTV Systems: Transmits analog video signals in security cameras, surveillance networks, and TV broadcasting.
Cable TV (CATV): Distributes RF signals for cable television and internet services.
Telecommunications: Used in base stations, antennas, and satellite communication setups.
Industrial Systems: Connects sensors, monitors, and control devices in automation environments.
5. Comparison with Similar Cables
Feature 75-5 (RG-59) RG-6 RG-11
Impedance 75Ω 75Ω 75Ω
Conductor Size 1.0–1.2 mm 1.8–2.2 mm 2.5–3.0 mm
Attenuation Higher at high freq. Lower than RG-59 Lowest
Max Distance ~250 meters (video) ~500 meters (video) ~600 meters (video)
Cost Low Moderate High
6. Limitations
Frequency Limitations: Not ideal for frequencies above 1 GHz.
Signal Loss Over Distance: For runs exceeding 250 meters, consider thicker cables like RG-6 or RG-11.
Bend Radius: Avoid sharp bends to prevent damage to shielding layers.
7. Selection Tips
Environment: Use weatherproof jackets for outdoor installations.
Connectors: Ensure compatibility with BNC, F-type, or RCA connectors.
Certifications: Look for compliance with standards like ISO, UL, or CE.
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IntroductionIn today’s fast-paced digital world, reliable and high-speed data transmission is critical for industries ranging from telecommunications to aerospace. Enter High-Speed Data Micro-Coax—a cutting-edge miniature coaxial cable e.
Micro Coaxial Cable: High-Quality Solutions for Precision Applications Micro coaxial cables are essential components in high-performance electronic applications, providing reliable signal transmission in compact and flexible designs. A.
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