Introduction
RG213 Coaxial Cable is a high-performance 50-ohm RF wire that is commonly used in high-power RF transmission, antenna feeders, radio communication, and industrial RF applications. RG213 is a popular choice for signal stability and longevity due to its low loss, superior shielding, and great power handling capacity.
Compared to thinner cables such as RG58, RG213 has lower attenuation, better shielding efficacy, and stronger power handling, making it suited for HF, VHF, and UHF use.
What is RG213 Coaxial Cable ?
RG213 is a large-diameter, flexible coaxial cable with a solid copper inner conductor, solid polyethylene dielectric, and double braided copper shielding. This design ensures a steady impedance, little signal loss, and high resistance to external electromagnetic interference.
RG213 is typically terminated with PL-259, N-Type, BNC, or TNC connectors, depending on the application.
Features of RG 213 Coaxial Cable
- Low signal attenuation.
- Excellent performance for medium-long RF wire runs.
- High Power Handling Capability
- Ideal for transmitters and base stations.
- Superior Shielding Effectiveness
- Double copper braid reduces EMI/RFI.
- Stable 50-Ohm Impedance
- Consistent signal transmission
- High mechanical strength.
- Thick jacket and strong construction
- Broad Frequency Range Support
- Performs effectively from HF to UHF bands.
- Excellent VSWR performance.
- Low reflection loss.
Technical Specifications of RG213 Coaxial Cable
| Parameter | Specification |
|---|---|
| Cable Type | RG213 Coaxial Cable |
| Impedance | 50 Ohm |
| Inner Conductor | Solid Bare Copper |
| Conductor Diameter | ~2.25 mm |
| Dielectric | Solid Polyethylene (PE) |
| Shielding | Double Copper Braid |
| Shield Coverage | ≥ 95% |
| Outer Jacket | PVC / PE (UV Resistant) |
| Overall Diameter | ~10.3 mm |
| Velocity of Propagation | ~66% |
| Capacitance | ~101 pF/m |
| Frequency Range | DC to 1 GHz (usable higher) |
| Attenuation @ 100 MHz | ~6.6 dB / 100 m |
| Attenuation @ 1000 MHz | ~22 dB / 100 m |
| Operating Temperature | -40°C to +80°C |
Types and Variants of RG 213 Coaxial Cable
RG213 is available in many variations to suit different situations and performance requirements:1. Standard RG-213/U
- Solid, bare copper center conductor
- Solid PE dielectric
- Double-braided copper shield.
- General RF and antenna usage
2. RG213 Low-Loss Variant
- Optimized dielectric
- Lower attenuation at higher frequencies
- Suitable for lengthy antenna feeder runs.
3. RG213 Military/MIL-C-17 Grade
- Manufactured to military specs.
- Improved electrical and mechanical consistency.
- Used in defence and aerospace systems.
4. RG213, High-Temperature Variant
- Heat-resistant jacket materials
- Ideal for industrial RF settings.
5. RG213 Outdoor and UV-Resistant Cable
- Black PE jacket.
- Resistant to sunlight, moisture, and weather.
6. RG213 Flexible Variant.
- Improved bending radius
- Used in situations where routing flexibility is essential.
Applications for RG213 Coaxial Cable:
1. RF Antenna Feeder Lines
- HF, VHF, and UHF base station antennas
- Amateur (HAM) radio antennas
2. Radio Communication Systems.
- Two-way radios.
- Maritime communication
- Emergency Communication Networks
3. Military and Defense Systems.
- Tactical Radio Systems
- Secure RF communication
4. Broadcasting and Transmitter Systems
- RF transmitters
- Signal distribution systems
5. Industrial RF Equipment
- RF generators
- High-power radiofrequency testing systems
6. Test and Measurement
- RF Signal Routing
- Laboratory RF setups
Comparison Between RG213 Cable and RG58 Cable
| Parameter | RG213 Coaxial Cable | RG58 Coaxial Cable |
|---|---|---|
| Impedance | 50 Ohm | 50 Ohm |
| Inner Conductor | Solid Bare Copper | Solid / Stranded Copper |
| Dielectric | Solid Polyethylene (PE) | Solid PE / Foam PE |
| Shielding | Double Copper Braid | Single Copper Braid |
| Shield Coverage | ≥ 95% | ~70–90% |
| Overall Diameter | ~10.3 mm | ~4.95 mm |
| Signal Loss (Attenuation) | Low | High |
| Attenuation @ 100 MHz | ~6.6 dB / 100 m | ~11 dB / 100 m |
| Power Handling | High | Low to Medium |
| Flexibility | Moderate | High |
| Typical Frequency Use | HF / VHF / UHF | HF / VHF |
Conclusion
RG213 coaxial cable remains a reliable choice for RF transmission, antenna feeder lines, military communication, and industrial RF applications. With many versions available and proven performance across frequency bands, RG213 provides consistent signal quality even in challenging situations.
Contact Us
Eteily Technologies India Pvt. Ltd.
📫 Address: B28 Vidhya Nagar, Near SBI Bank,
📍 District: Bhopal, PIN: 462026, Madhya Pradesh
🌐 Website: https://eteily.com
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