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Choosing between RG58 and RG59 coaxial cables might seem technical, but it’s pretty straightforward once you get the hang of it. These cables might look similar on the outside, but they each have their sweet spots where they shine. Let’s dive into what makes each tick so you can make the best pick for your setup.
RG58: The Flexible All-Rounder
- Impedance: 50 ohms
- Core: Stranded conductor
- Flexibility: Very flexible
Why It’s Great For:
- Amateur Radio: It’s super flexible and can handle the signal boosts needed for radio setups.
- Older Ethernet Networks: If you’ve got an older network that needs a bendable cable for tight spaces, RG58 is your buddy.
Key Features:
- Flexibility: Think of it as a bendable straw. It’s great when you need to snake your cable around tight corners.
- Signal Boost: Works well for shorter distances where you need a bit of signal amplification.
RG59: The Tough Performer
- Impedance: 75 ohms
- Core: Solid conductor
- Shielding: Extra protection with dual shielding (braid and foil)
Why It’s Great For:
- CCTV Systems: Keeps your security camera feeds crisp and clear, even if you’re running the cable over long distances.
- Cable TV: Ensures your TV signal stays strong and reliable, even if the cable stretches a bit.
Key Features:
- Durability: Built like a tank with a solid core and dual shielding, it’s tough and keeps interference at bay.
- Long Runs: Excellent for long cable runs where maintaining signal quality is crucial.
What Sets Them Apart?
| Model | Wire Gauge | Insulation diameter (mm) | Weaving coverage (%) | Overall diameter (mm) | Impedance |
|---|---|---|---|---|---|
| RG58 | 20 AWG | 2.95 | 80%-95% | 4.95 | 50 ohms |
| RG59 | 22 AWG | 3.7 | 80%-95% | 6.1 | 75 ohms |
Impedance Matters
- RG58 (50 ohms): Better for applications that need a boost, like radio setups.
- RG59 (75 ohms): Better for preserving signal quality over longer distances, making it ideal for video and TV.
Build Quality: Flexibility vs. Strength
- RG58: It’s like the cable version of a flexible friend. It bends easily and fits into tight spaces.
- RG59: Sturdier with its solid core and extra shielding, it’s built to last and perform well over long stretches.
Signal Performance
Signal Loss
- RG58: Can experience more signal loss over long distances. It might not be the best choice if you’re running cable across a big area.
- RG59: Handles long distances better, keeping your signal strong and clear.
Frequency Handling
- RG58: Good for frequencies up to around 1 GHz. Perfect for radio and some network tasks.
- RG59: Handles frequencies up to 2 GHz, making it ideal for high-quality video applications.
So, Which One to Choose?
- RG58: This is the best option for flexibility and signal boosting, especially for radio setups or older network configurations.
- RG59: This is your pick for long-distance runs and high-frequency needs, like for CCTV systems or cable TV.
Choosing the right cable depends on what you need. By understanding what each one excels at, you’ll ensure your setup performs precisely how you want it. Whether setting up a new network, improving your security system, or upgrading your TV, picking the right coaxial cable will make all the difference.
Sam Wu is the Marketing Manager at Romtronic, holding a degree in Mechatronics. With 12 years of experience in sales within the electronic wiring harness industry, he manages marketing efforts across Europe. An expert in cable assembly, wiring harnesses, and advanced connectivity solutions, Sam simplifies complex technologies, offering clear, actionable advice to help you confidently navigate your electrical projects.
