1. Television and Broadcast Systems
75-5 coaxial cables are a staple in analog and digital television signal distribution due to their 75-ohm impedance, which matches the standard for TV tuners and broadcast equipment.
Key Applications:
Cable TV (CATV): Distributes signals from headends to set-top boxes in residential and commercial buildings.
Satellite TV: Connects satellite dishes to receivers.
Broadcast Studios: Links cameras, mixers, and transmitters for live production.
Advantages:
Low cost and easy installation compared to thicker cables like RG-11.
Suitable for frequencies up to 1 GHz, covering most SD/HD TV signals.
2. Surveillance and Security Systems
The flexibility and durability of 75-5 cables make them ideal for CCTV and IP-based security systems.
Key Applications:
Analog CCTV: Transmits video from cameras to DVRs.
HD-over-Coax Systems: Supports HD-TVI, HD-CVI, and AHD formats for 1080p/4K resolution.
Power-over-Coax (PoC): Delivers power and video over a single cable to PTZ cameras.
Advantages:
Shielding: Aluminum foil + braid shields (e.g., 90% coverage) prevent EMI from motors or power lines.
Weather Resistance: PVC or PE jackets protect against moisture in outdoor installations.
3. Medical Imaging and Diagnostic Equipment
In healthcare, 75-5 cables ensure noise-free transmission of high-resolution medical imaging signals.
Key Applications:
Ultrasound Machines: Connects transducers to monitors.
Endoscopy: Transmits video from internal cameras to displays.
Patient Monitoring: Links bedside devices to central systems.
Advantages:
Compliance with ISO 13485 standards for medical devices.
Non-magnetic variants avoid interference with MRI equipment.
4. Industrial Automation and Control Systems
75-5 cables provide stable signal transmission in factories and warehouses with high EMI levels.
Key Applications:
PLC Communication: Connects programmable logic controllers to sensors and actuators.
Video Monitoring: Tracks production lines and robotic arms.
RFID Systems: Links readers to antennas for inventory management.
Advantages:
Temperature Resistance: Withstands -40°C to +80°C ranges.
Abrasion-Resistant Jackets: PU or steel-braided designs for harsh environments.
5. Consumer Electronics and Home Theater
The compact size of 75-5 cables suits space-constrained home entertainment setups.
Key Applications:
DVD/Blu-ray Players: Connects to TVs or AV receivers.
Gaming Consoles: Transmits audio/video to displays.
Home Audio Systems: Links amplifiers to subwoofers or satellite speakers.
Advantages:
Gold-Plated Connectors: Ensure corrosion-free signal transfer.
Flexible Design: Tight bend radii (e.g., 10x diameter) fit behind furniture.
6. Telecommunications and Networking
While fiber optics dominate long-distance telecom, 75-5 cables fill niche roles in legacy and hybrid systems.
Key Applications:
DSL Modems: Backward compatibility with copper-based networks.
Cell Tower Monitoring: Connects sensors to base station controllers.
Hybrid Fiber-Coax (HFC): Last-mile connectivity in fiber-to-the-node (FTTN) networks.
Advantages:
Cost-Effective Upgrades: Extends the lifespan of existing copper infrastructure.
Technical Specifications of 75-5 Coaxial Cables
Parameter Typical Value
Impedance 75 ohms
Outer Diameter 5 mm
Frequency Range 0–1 GHz
Attenuation 0.3 dB/m @ 100 MHz
Shielding Foil + 60–90% braid coverage
Jacket Material PVC, PE, or PUR
Bend Radius 25 mm (minimum)
Comparison with Similar Coaxial Cables
Cable Type Impedance Diameter Frequency Range Primary Use
75-5 75 Ω 5 mm 0–1 GHz CCTV, CATV, consumer AV
RG-6 75 Ω 6.9 mm 0–3 GHz Satellite TV, HDTV
RG-59 75 Ω 6.1 mm 0–50 MHz Legacy analog video
Future Trends and Upgrades
4K/8K Video Support: Enhanced shielding for higher bandwidth demands.
IoT Integration: Bundled with power lines for smart home sensors.
Eco-Friendly Materials: Recyclable jackets to meet sustainability standards.
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