RG188 Coaxial Cable – Specifications, Features & Applications

Introduction

RG188 coaxial wire is a 50-ohm, high-temperature, silver-plated coaxial cable that is commonly used in radio frequency transmission, military systems, aircraft electronics, and test equipment. RG188, known for its PTFE dielectric insulation and outstanding heat resistance, ensures robust signal transmission in challenging conditions.

It is often used in applications that require high frequency performance, thermal stability, and chemical resistance.

What is RG188 Coaxial Cable?

RG188 is a thin, flexible 50-ohm coaxial wire made from:

• Silver-plated copper center conductor.

• PTFE (Teflon) dielectric.

• Silver-plated copper braided shield.

• High-temperature-resistant outer jacket

Because of its PTFE insulation, RG188 operates reliably in conditions where PVC-based cables may fail.

Types of RG188 Coaxial Cables :

RG188 cables are available in a variety of configurations based on construction and application requirements.

1. Standard RG188 Cable :

• A single braided shield.

• PTFE dielectric

• General RF and communication use.

2. Double-Shielded RG188 Cable : 

• Enhanced EMI shielding.

• Improved signal integrity.

• Suitable for high frequency systems.

3. RG188 with FEP Jacket :

• Chemically resistant.

• Suitable for aerospace and defense applications.

4. RG188 Cable Assemblies :

• Pre-terminated with SMA, BNC, TNC, and N-type connections.

• Custom lengths are available.

• Used in RF testing and antenna systems.

Key Features of the RG188 Coaxial Cable

• 50 Ohm impedance.

• High temperature resistance (PTFE insulation)

• Silver-plated conductors for increased conductivity.

• Excellent chemical resistance.

• Low dielectric loss.

• Good flexibility.

• Ideal for high-frequency applications.

• Strong shielding effectiveness.

Technical Specifications

Parameter	Specification
Impedance	50 Ohm
Outer Diameter	Approx. 2.95 mm
Conductor	Silver-Plated Copper
Dielectric	PTFE (Teflon)
Shielding	Silver-Plated Copper Braid
Capacitance	~95 pF/m (Typical)
Maximum Frequency	Up to 5 GHz (Typical)
Operating Temperature	-55°C to +200°C

Applications for RG188 Coaxial Cable : 

1. RF Communication Systems

• Base Stations

• Antenna connectivity

• RF modules

2. Aerospace and Defense

• Avionics systems

• Radar Equipment

• Military communication systems

3. Test and Measurement Equipment

• Signal Generators

• Spectrum analyzers

• Oscilloscopes

4. Industrial Electronics

• Control systems

• High temperature surroundings

5. Medical Equipment.

• Diagnostic RF systems

• Imaging Electronics

Why should you choose RG188 over other RG cables?

• Compared to PVC-insulated cables such as RG58, RG188 provides:

• Higher temperature tolerance.

• Improved chemical resistance

• Improved performance at high frequencies

• Extended service life in severe situations.

• It is particularly well-suited to applications requiring heat stability and signal reliability.

Conclusion

The RG188 coaxial cable is a high-performance, high-temperature 50-ohm RF wire intended for demanding applications in aircraft, defense, industrial electronics, and test equipment. RG188's PTFE insulation, silver-plated conductors, and superior shielding provide dependable signal transmission even in harsh environments.

For projects that require durability, thermal resistance, and constant RF performance, RG188 offers a reliable and tested solution.

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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