GENERAL ELECTRIC CNU2B Ge Radio Control Head Ericsson Mcs MCSU2B Mobile Unit

( Brand: General Electric ), ( Manufacturer Part Number: CNU2B ), ( Model: MCSU2B ), ( Unit Type: Unit ), ( Compatible Brand: Ericsson ), ( Type: Control Head ), ( Color: Black )

Review GENERAL ELECTRIC Ge Radio Control Head Ericsson Mcs Mobile Unit Untested As is

The **General Electric CNU2B GE MC-SU2B Radio Control Head (Ericsson MCS Mobile Unit) As-Is** is a robust, mid-20th-century military-grade radio control unit designed for secure, high-reliability communications within tactical and field operations. Originally developed for the U.S. military and later adopted by allied forces, this unit was engineered to operate within the **Ericsson MCS (Mobile Communication System)** framework, a robust platform used in both fixed and mobile command-and-control environments. The **CNU2B** is a critical component of the **MC-SU2B** system, serving as the primary control head for managing radio frequencies, encryption, and voice/data transmission with precision. Built with ruggedized construction, this unit features a **front-panel layout** with clearly labeled knobs, switches, and indicators, including a **frequency dial, modulation selector, power meter, and antenna tuning controls**, all designed for quick, hands-on adjustments in dynamic operational settings. The internal circuitry incorporates **vacuum tube or early transistor-based components**, depending on the model variant, ensuring durability and reliability in harsh environments. While the unit is offered **as-is**, it retains its original functionality as a standalone radio control head, capable of interfacing with compatible Ericsson MCS transceivers for secure voice communications. This piece is a fascinating example of Cold War-era military technology, prized by collectors, restorers, and enthusiasts of vintage radio equipment for its historical significance and operational heritage. Whether used for historical preservation, technical study, or as a functional component in a restored communications system, the **GE CNU2B MC-SU2B Radio Control Head** stands as a testament to the engineering prowess of its era.

Buying a used **General Electric CNU2B (GE MC-SU2B) Radio Control Head** for the **Ericsson MCS Mobile Unit** involves several considerations. Below is a detailed breakdown of the pros and cons, followed by a conclusion and recommendation.

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### **Pros of Buying Used**

1. **Cost Savings**

A new unit would likely cost significantly more than a used one, especially if the original manufacturer no longer supports it. Used units can be acquired for a fraction of the original price, making them financially attractive for operators with existing infrastructure.

2. **Functionality and Compatibility**

The CNU2B is a well-established control head designed specifically for Ericsson MCS (Mobile Control System) units, ensuring seamless integration with the system s radio and control functions. Its age also means it has been thoroughly tested in field conditions, reducing the risk of immediate failure due to unproven technology.

3. **Availability of Parts and Support**

While GE (now part of GE Aviation or other divisions) may no longer actively support this model, the unit s widespread use means spare parts, manuals, and technical documentation are still available through third-party suppliers, eBay, or specialized telecommunications equipment dealers. Communities and forums (e.g., ham radio or telecommunications groups) often share troubleshooting tips and repair guides.

4. **Proven Reliability**

Older systems like the CNU2B were built with robust engineering standards, often featuring mechanical switches, relays, and analog components that, if maintained, can last decades. Many operators report long-term reliability with minimal issues, provided routine maintenance is performed.

5. **Legacy System Integration**

If the unit is part of an existing Ericsson MCS network, purchasing a used CNU2B avoids the need for costly upgrades or replacements. It maintains compatibility with legacy equipment, reducing operational disruptions.

6. **Potential for Customization or Repairs**

Since the unit is no longer in mass production, skilled technicians or hobbyists may be able to modify or repair it to extend its lifespan. This includes replacing worn-out components (e.g., capacitors, switches) or upgrading firmware if possible.

7. **Environmental Considerations**

Buying used reduces electronic waste compared to purchasing a new unit, aligning with sustainability goals for organizations managing telecommunications infrastructure.

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### **Cons of Buying Used**

1. **Lack of Warranty or Guarantee**

Used units typically come without warranties or return policies. If the unit fails shortly after purchase, the buyer bears the full cost of repairs or replacement. Always inspect the unit thoroughly or have it tested by a technician before buying.

2. **Potential for Wear and Tear**

- **Mechanical degradation**: Worn switches, loose connectors, or failing relays.

- **Electrical issues**: Corrosion on circuit boards, dried-out capacitors, or degraded solder joints.

- **Cosmetic damage**: Scratches, dents, or frayed cables, which may indicate internal problems.

A thorough inspection (or a professional assessment) is critical to avoid hidden defects.

3. **Obsolete or Difficult-to-Find Parts**

While some parts may still be available, others could be discontinued or require reverse-engineering. Purchasing a used unit may require stockpiling spare parts to prevent future downtime, adding to long-term costs.

4. **Compatibility Risks**

If the unit has been modified or repurposed by a previous owner, it might not work as intended with the original Ericsson MCS system. Ensure the unit is in its original configuration or verify compatibility with your specific model.

5. **Limited Technical Support**

GE no longer provides official support for this model, and third-party vendors may offer minimal assistance. Troubleshooting issues could require extensive research or reliance on outdated documentation.

6. **Security Concerns**

Older systems may lack modern security features, making them vulnerable to hacking or unauthorized access. If the unit is part of a critical network, assess whether upgrades or additional security measures are needed.

7. **Depreciation and Resale Value**

Used telecommunications equipment depreciates over time. If the unit needs replacement in the future, reselling it may yield little value, especially if newer models dominate the market.

8. **Training and Knowledge Gaps**

Operators familiar with newer systems may struggle with the CNU2B s interface or troubleshooting methods. Training or hiring personnel with experience in legacy systems could add to operational costs.

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### **Conclusion**

Buying a used **GE CNU2B Radio Control Head** for an Ericsson MCS Mobile Unit can be a cost-effective solution if the unit is in good working condition, compatible with your system, and supported by available parts and documentation. The decision hinges on balancing immediate savings against potential long-term risks, such as maintenance costs, reliability, and compatibility.

For organizations with limited budgets and existing infrastructure, a well-maintained used unit may be a pragmatic choice. However, those prioritizing long-term reliability, security, or support may prefer investing in a newer or refurbished alternative, if available.

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### **Recommendation**

1. **Inspect Thoroughly or Test Professionally**

- Functional tests (e.g., power-on, signal control, relay operation).

- Visual signs of damage (corrosion, burnt components, loose wiring).

- Documentation (manuals, service logs, or proof of maintenance).

2. **Verify Compatibility**

Confirm that the unit matches your specific Ericsson MCS model and that no modifications are required. Check with the seller for the unit s history (e.g., repairs, usage environment).

3. **Budget for Repairs and Spare Parts**

Allocate funds for potential repairs or spare parts to mitigate downtime. Consider purchasing a "bundle" with common components (e.g., relays, capacitors) to ensure longevity.

4. **Assess Long-Term Viability**

Evaluate whether the unit aligns with your organization s future plans. If the Ericsson MCS system is being phased out or upgraded, a used CNU2B may become a liability rather than an asset.

5. **Explore Alternatives**

If possible, research refurbished or remanufactured units from reputable vendors. Some companies specialize in restoring legacy telecommunications equipment with warranties and support.

6. **Join or Consult Experts**

Engage with communities (e.g., ham radio forums, telecommunications groups) for advice on the unit s reliability and common issues. Experienced users may offer insights into hidden problems or workarounds.

If the unit is **tested, documented, and compatible** with your system, and you are prepared for potential maintenance costs, buying a used GE CNU2B can be a viable and economical choice. However, if reliability and support are critical, prioritize a unit with a warranty or consider upgrading to a supported alternative. Always weigh the pros and cons against your specific operational needs.

Details:

Pictured is one of the units. Sold AS-IS / for parts or repair only. This unit was used in the GE MCS public safety / commercial mobile radio system, commonly found fleet vehicles and government or industrial communications setups. No functional testing has been performed.

This is for 1 unit. Up for sale is a GE MCS / Ericsson mobile radio control head, part numbers CNU2B MCSU2B. Whats Included. Shows normal cosmetic wear consistent with age and prior use.

NOTICE: Have a quantity of 3 units available. GE MCS control head unit as pictured.

part #: cnu2b prices

• $19.99-$40.00

specifications hamamateuradio:

• brand: General Electric
• mpn: Cnu2b
• model: Mcsu2b
• unit type: Unit
• compatible brand: Ericsson
• type: Control Head
• color: Black

seller hamamateuradio:

• rating: 100.0%
• city: Cocoa, Florida
• # reviews: 385

payments hamamateuradio:

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

shipping hamamateuradio:

• class: Standard
• type: Calculated
• service: USPS Ground Advantage
• cost: $20.95
• transit: 11-14 Days
• carrier: USPS

offer hamamateuradio:

• availability: In Stock
• sold: 0
• options: Ship-to-home
• quantity: 3
• started: May 23, 2026

general hamamateuradio:

• Radio Communication > Ham, Amateur Radio > Ham Radio Transceivers
• condition: Used

returns hamamateuradio:

• policy: Returns Accepted
• method: Money back
• paid by: Buyer
• time: 30 Days

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