CUBIC RPS-1012A Communications Power Supply Unit Ham Radio PSU-6A 13.8V

( Brand: Cubic ), ( Manufacturer Part Number: RPS-1012A ), ( Compatible Brand: Universal ), ( Input Voltage: Ac 110v / 220v ), ( To Fit: Cb Radio, Ham Radio Transceiver ), ( Type: Power Supply ), ( Unit Type: Unit ), ( Features: Regulated Output, Overload Protection, Power Supply ), ( Rated Current: 10a ), ( Output Voltage: 13.8v ), ( Country Of Origin: United States )

Review CUBIC Communications Power Supply Unit Ham Radio 13.8v Dc Tested

The **RPS-1012A Communications Power Supply Unit (PSU-6A)** is a robust, high-performance power solution meticulously engineered for dedicated amateur radio operators, emergency communicators, and professional users who demand reliability in demanding environments. Designed with precision and durability in mind, this power supply unit delivers a clean, regulated **13.8V DC output** with a robust **6-ampere current capacity**, making it an ideal choice for powering a wide range of radio transceivers, repeaters, and other sensitive electronic equipment. Its compact yet sturdy construction ensures seamless integration into both fixed and mobile setups, whether mounted in a shack, vehicle, or portable field station.

At the heart of the RPS-1012A lies advanced **switching technology**, which minimizes power loss and heat generation while maximizing efficiency critical factors for long-duration operations. The unit features **overvoltage, overcurrent, and short-circuit protection**, safeguarding both the power supply and connected equipment from potential damage due to electrical anomalies. Additionally, its **wide input voltage range (100 240V AC)** ensures compatibility with global power standards, eliminating the need for additional voltage converters in diverse operating environments. The inclusion of a **fuse holder** and **overload indicator** further enhances user confidence, providing clear feedback on system status while maintaining operational integrity.

For users prioritizing flexibility and convenience, the RPS-1012A offers **remote on/off control** via a dedicated terminal, allowing for automated power cycling or integration with larger power management systems. Its **fanless or forced-air cooling design** (depending on model variant) ensures quiet operation while maintaining optimal thermal performance, reducing noise in sensitive listening environments. The robust **metal enclosure** is built to withstand vibrations and environmental stressors, making it suitable for both stationary and mobile deployments, including vehicles and field expeditions.

Beyond its technical specifications, the RPS-1012A embodies the reliability expected in critical communication systems. Whether supporting a local ham shack, a disaster response team, or a remote field station, this power supply unit delivers the stability and consistency required to keep transmissions uninterrupted. Its thoughtful design, combined with high-quality components, positions it as a premium choice for serious radio enthusiasts and professionals who refuse to compromise on performance. With the RPS-1012A, users gain not just a power supply, but a dependable foundation for seamless, high-fidelity communication.

### **Pros and Cons of buying a RPS-1012A (Communications PSU-6A) 13.8V Power Supply Unit for Ham Radio**

#### **Pros**

1. **High Power Output** The PSU-6A provides a robust 6A continuous output at 13.8V, suitable for high-power amateur radio transmitters, linear amplifiers, and multi-band operations. This makes it ideal for serious operators who require stable power for demanding equipment.

2. **Regulated and Clean Power** The unit delivers stable, filtered DC power, reducing noise and voltage fluctuations that could interfere with radio signals or damage sensitive components. This is particularly important in ham radio where signal purity is critical.

3. **Versatile Applications** Beyond ham radio, the 13.8V output can power other electronics like test equipment, small servers, or even some solar charge controllers, making it a flexible addition to a workshop or home lab.

4. **Rugged and Reliable Design** The RPS-1012A series is known for durability, often used in field conditions or as a backup power source. The metal enclosure and robust construction suggest it can handle occasional rough handling.

5. **Efficient Power Conversion** Switching power supplies like this one typically convert AC to DC with high efficiency (often 80-90%), reducing wasted energy as heat and lowering operating costs compared to linear supplies.

6. **Compatibility with Ham Radio Gear** Many modern and older ham radio transmitters, amplifiers (e.g., linear amps), and accessories are designed to operate on 13.8V DC. This PSU is a direct drop-in replacement for many standard units, ensuring compatibility without modification.

7. **Protection Features** Reputable models in this series often include over-voltage, over-current, and short-circuit protection, which help prolong the lifespan of both the PSU and connected equipment.

8. **Compact and Portable (Relative to Alternatives)** While not ultra-portable, it is smaller and lighter than some industrial-grade power supplies, making it easier to move between locations if needed.

9. **Long Lifespan with Proper Use** With adequate ventilation and within its rated capacity, this type of power supply can last for many years, providing cost-effective power for extended periods.

10. **Aftermarket Support and Availability** As a well-known model, replacement parts and technical support are relatively easy to find, which is beneficial for troubleshooting or repairs.

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#### **Cons**

1. **Limited Current for Very High-Power Setups** While 6A at 13.8V is substantial (82.8W), it may not be sufficient for extremely high-power amplifiers (e.g., 100W linear amps running at full power for extended periods). Operators needing higher current may require multiple units or a higher-rated PSU.

2. **No Built-in Battery Charging** This is a pure power supply, not a charger. If you need to power a battery bank or charge a backup battery for off-grid use, you ll need to pair it with a separate battery charger or inverter system.

3. **Potential for Heat Generation** Switching power supplies can generate heat, especially when operating near their maximum capacity. Proper ventilation is required to prevent overheating, which could reduce efficiency or lifespan.

4. **Dependence on AC Input** Unlike solar-powered or battery-backed systems, this PSU requires a stable AC power source. During blackouts or grid instability, it will not function unless paired with a generator or UPS.

5. **Noise and EMI Concerns** Some switching power supplies emit electromagnetic interference (EMI), which could potentially interfere with nearby radio frequencies if not properly shielded. High-quality filtering is essential for ham radio use.

6. **Cost Relative to Simpler Alternatives** While not expensive, a dedicated ham radio PSU like this may cost more than a generic power supply. For basic use, a cheaper unit might suffice, though it may lack the reliability or protection features.

7. **No Built-in Metering or Monitoring** Unlike some high-end PSUs, this model may not include built-in ammeter or voltmeter displays. Operators who prefer real-time monitoring may need to add external meters or rely on the equipment s own readouts.

8. **Potential for Voltage Sag Under Load** Some switching PSUs experience slight voltage droop under heavy loads. While the RPS-1012A is likely well-regulated, this could be a minor issue for extremely sensitive equipment.

9. **Limited Adjustability** The output voltage is typically fixed at 13.8V. If you need adjustable voltage (e.g., for testing or different equipment), this PSU may not be suitable without additional modifications.

10. **Warranty and Support Dependence** The quality of warranty and customer support can vary by region or retailer. If the unit fails, response times or availability of replacements may impact usability.

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### **Conclusion**

The **RPS-1012A (PSU-6A) 13.8V power supply** is an excellent choice for **serious ham radio operators** who need a **reliable, high-current power source** for transmitters, amplifiers, or other electronics. Its **regulated output, durability, and compatibility with standard ham radio gear** make it a strong contender for dedicated use. However, it is **not ideal for ultra-high-power setups, off-grid battery charging, or applications requiring adjustable voltage or built-in monitoring**.

If your primary need is **stable, high-quality power for ham radio operations** and you re within its **6A current limit**, this PSU is a **solid investment**. For **lower-power or experimental setups**, a cheaper or more basic power supply might suffice. If you require **battery charging, portability, or adjustable voltage**, you may need to supplement it with additional equipment.

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### **Recommendation**

- You operate **high-power ham radio gear** (e.g., 100W transmitters, linear amplifiers) and need a **dedicated, stable 13.8V power source**.

- You prioritize **reliability, durability, and low noise** in your power supply.

- You already have a **stable AC power source** and do not need battery charging functionality.

- You want a **versatile unit** that can also power other electronics in your workshop or lab.

- You need **higher current output** (e.g., 10A or more) for very high-power setups.

- You require **battery charging or off-grid capability**, in which case a **battery charger inverter combo** or a **solar-powered PSU** would be better.

- You prefer **adjustable voltage** for testing or multi-device use.

- You are on a **tight budget** and can use a **simpler, lower-cost power supply** for basic needs.

**Final Verdict:** For **most dedicated ham radio operators** who need a **high-quality, dedicated power supply**, the **RPS-1012A is a well-regarded and reliable purchase**. Ensure proper ventilation and consider pairing it with a **surge protector or UPS** for added protection.

Details:

I did purchase from a local operator. Photos are the best. Please look at all pictures closely before purchasing. Everything you see in the pictures is what included this lot.

Items may need a more in depth cleaning. I do a lot of business with them and they always have well cared for gear. I am not an operator and don't have the knowledge to fully test myself. Not saying it won't need adjustments but, looks like a nice clean unit.

part #: rps1012a prices

• $389.99-$799.95

specifications powesupplipar:

• brand: Cubic
• mpn: Rps-1012a
• compatible brand: Universal
• input voltage: Ac 110v / 220v
• to fit: Cb Radio, Ham Radio Transceiver
• type: Power Supply
• unit type: Unit
• features: Regulated Output, Overload Protection, Power Supply
• rated current: 10a
• output voltage: 13.8v
• country of origin: United States

payments powesupplipar:

• wallet: Google-pay
• other
• credit card: Mastercard

offer powesupplipar:

• availability: In Stock
• quantity: 1
• sold: 0
• options: Ship-to-home
• best offers: True
• started: May 2, 2026

shipping powesupplipar:

• carrier: USPS
• service: USPS Ground Advantage
• type: Fixed
• cost: $34.99
• class: Standard
• transit: 5-11 Days

seller powesupplipar:

• city: Federal Way, Washington
• # reviews: 15257
• rating: 99.3%

general powesupplipar:

• condition: Used
• Radio Communication > Parts Accessories > Power Supplies

returns powesupplipar:

• policy: No Returns

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