LMR-300 Coaxial Cable
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LMR-300 Coaxial Cable: Comprehensive Information
Overview
LMR-300 is a versatile, high-performance coaxial cable designed for a wide range of RF (radio frequency) applications. Known for its low signal loss, flexibility, and durability, LMR-300 is ideal for medium-length cable runs in both indoor and outdoor environments. It is commonly used in wireless communication systems such as cellular, Wi-Fi, satellite, and antenna installations.
Key Features of LMR-300 Coaxial Cable
- Low Signal Loss: LMR-300 provides excellent low-loss characteristics, ensuring efficient signal transmission over medium distances.
- Flexible Design: The cable’s flexibility makes it easier to install in various environments, including tight spaces.
- Broad Frequency Range: Capable of supporting a wide range of frequencies, making it suitable for multiple applications.
- UV-Resistant Jacket: Equipped with a UV-resistant polyethylene jacket, making it durable for outdoor use.
- High Shielding: Features a double shield (foil and braid) for superior protection against EMI/RFI (electromagnetic interference/radio frequency interference).
- Wide Temperature Range: Designed to operate effectively in a broad temperature spectrum.
Technical Specifications
- Impedance: 50 Ohms
- Center Conductor: Solid bare copper, 0.075 inches (1.91 mm) diameter
- Dielectric: Foam polyethylene, 0.190 inches (4.83 mm) diameter
- Outer Conductor: Aluminum tape, bonded to the dielectric
- Shielding: Tinned copper braid, 0.215 inches (5.46 mm) diameter
- Jacket: UV-resistant polyethylene, 0.300 inches (7.62 mm) diameter
- Attenuation:
- 450 MHz: 4.2 dB/100 feet
- 900 MHz: 6.2 dB/100 feet
- 1500 MHz: 8.5 dB/100 feet
- 2400 MHz: 11.3 dB/100 feet
- 5800 MHz: 18.5 dB/100 feet
- Operating Temperature: -40°C to +85°C
- Weight: 0.045 lb/ft (0.067 kg/m)
- Minimum Bend Radius: 1.5 inches (38.1 mm)
Benefits
- Enhanced Signal Integrity: Reduces signal loss, maintaining higher signal quality over medium distances.
- Ease of Installation: Flexible and easy to handle, even in constrained spaces.
- Multi-Purpose: Suitable for a variety of RF applications, from cellular networks to satellite communications.
- Outdoor Durability: The UV-resistant jacket ensures long-term durability when exposed to sunlight.
- High Interference Protection: Effective shielding minimizes interference from external sources.
- Long-Lasting Performance: Durable construction ensures reliable performance in diverse environments.
Applications
- Cellular Network Systems: Connects cell site antennas to base station equipment.
- Wi-Fi Systems: Extends Wi-Fi networks by connecting routers to antennas or other networking devices.
- Satellite Communication: Ideal for satellite dish installations and other satellite communication setups.
- Amateur Radio: Popular for ham radio operators connecting transceivers to antennas.
- Broadcast Systems: Used in various broadcasting applications for clear signal transmission.
- RFID Systems: Suitable for RFID antenna installations.
- Public Safety Communications: Ensures reliable communication for emergency services.
Installation Tips
- Route Planning: Plan the cable path to avoid sharp bends and minimize the number of connectors.
- Connector Compatibility: Use high-quality connectors compatible with LMR-300 to minimize signal loss.
- Weatherproofing: For outdoor installations, ensure all connections are properly weatherproofed to prevent water ingress.
- Secure Mounting: Use appropriate clamps and supports to secure the cable and prevent movement or damage.
- Grounding: Properly ground the cable to protect against lightning strikes and electrical surges.
Example Use Cases
- Residential: Connecting a rooftop TV antenna to an indoor receiver.
- Commercial: Linking outdoor Wi-Fi antennas to network routers in a large office building.
- Industrial: Setting up RF communication systems in manufacturing plants.
- Public Venues: Extending cellular coverage in stadiums, convention centers, and other large public spaces.
- Rural Areas: Improving connectivity in remote locations with weak signal reception.
Maintenance and Care
- Regular Inspection: Periodically inspect the cable for signs of wear, damage, or corrosion.
- Clean Connections: Ensure all connections are clean and secure to maintain optimal performance.
- Replace Damaged Sections: Promptly replace any damaged sections of the cable to prevent signal loss.
- Proper Storage: Store excess cable in a dry, cool place to prevent degradation.
Conclusion
LMR-300 coaxial cable is a robust, flexible, and efficient solution for medium-length RF cable runs. Its low-loss performance, versatility, and durability make it a preferred choice for various applications, including cellular networks, Wi-Fi systems, and satellite communications. Proper installation and maintenance can significantly enhance its performance and longevity, ensuring reliable signal transmission in diverse environments. Whether for residential, commercial, or industrial use, LMR-300 offers a dependable means to maintain high-quality communication links.