1. Ham, Amateur Radio Communication For Sale
  2. sku: 13510281345056632
  3. MAGNAVOX WRR-3

MAGNAVOX Coast Guard Vlf Communications Receiver U.s. AN/WRR-3 14-600KHZ

Wrr-3 Magnavox U.s. Coast Guard An/wrr-3 Vlf Communications Receiver 14-600khz Mfg By

( Brand: Magnavox ), ( Manufacturer Part Number: WRR-3 ), ( Model: AN/WRR-3 ), ( Type: Base Station ), ( Country Of Origin: United States )

Review MAGNAVOX Us.s. Coast Guard An/wrr-3 Vlf Communications Receiver 14-600khz Mfg By

The **Magnavox AN/WRR-3** is a rugged, high-performance Very Low Frequency (VLF) communications receiver designed and manufactured for the United States Coast Guard, serving as a critical asset in long-range, over-the-horizon navigation, search-and-rescue, and maritime communications. Built to withstand the harshest environmental conditions including extreme temperatures, saltwater corrosion, and mechanical stress the AN/WRR-3 operates within the 14 to 600 kHz frequency range, making it ideal for receiving signals from VLF navigation beacons, distress transmissions, and other low-frequency maritime communications systems. Its robust construction features a durable metal chassis with reinforced mounting points, ensuring stability on ships, cutters, or stationary coastal installations. The receiver incorporates a precision-tuned front-end circuit to minimize interference from atmospheric noise, engine hum, or other electromagnetic disturbances, delivering clear and reliable signal reception even in high-sea environments. With its ability to lock onto weak, long-distance transmissions, the AN/WRR-3 was instrumental in supporting Coast Guard operations across vast oceanic expanses, providing essential navigation aids and emergency coordination capabilities. Featuring a robust power supply compatible with both AC and DC inputs, the unit is designed for seamless integration into existing maritime systems, offering operators a dependable tool for monitoring VLF signals with minimal maintenance. Its historical significance lies in its role as a cornerstone of Cold War-era naval communications, as well as its enduring utility in modern search-and-rescue missions, where reliable long-range reception remains paramount. Whether deployed aboard a patrol vessel or stationed ashore, the AN/WRR-3 exemplifies the precision engineering and durability required for frontline military and maritime applications.

The **Magnavox WRR-3 (U.S. Coast Guard AN/WRR-3)** is a vintage Very Low Frequency (VLF) communications receiver designed for maritime and aviation navigation, primarily operating in the 14 600 kHz range. Below is a detailed analysis of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the Magnavox WRR-3**

1. **Historical and Military Significance**

The WRR-3 was widely used by the U.S. Coast Guard and military during the Cold War for VLF navigation and communications, particularly for receiving signals from navigational beacons like the **Omega Navigation System** and **Navy/Navy (NN) transmitters**. Its legacy makes it a desirable collector s item for ham radio operators, historians, and enthusiasts of vintage electronics.

2. **Reliable VLF Reception**

VLF signals (14 600 kHz) are known for their ability to propagate globally, making this receiver useful for long-distance navigation and emergency communications. The WRR-3 was designed to pick up weak signals, which can be valuable for amateur radio operators experimenting with low-frequency propagation.

3. **Robust Construction**

The unit is built with durable components typical of military-grade equipment from the mid-20th century. This includes solid-state tubes (if still using them) and robust circuitry, which can make it more resilient than modern consumer electronics in some cases.

4. **Compatibility with Vintage Systems**

If you are working with older navigation or communication systems that rely on VLF, the WRR-3 may integrate well with other vintage equipment, such as **Omega navigation receivers** or **military radio networks** from the same era.

5. **Potential for Restoration and Modification**

The WRR-3 s design is well-documented, and parts may still be available through surplus markets or military electronics dealers. Restoring or modifying it can be a rewarding project for those with electronics expertise.

6. **Unique Learning Opportunity**

Studying the WRR-3 provides insight into early radio technology, modulation techniques, and VLF propagation. It can be an educational tool for understanding how radio navigation worked before GPS.

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### **Cons of the Magnavox WRR-3**

1. **Age and Wear**

The WRR-3 is likely several decades old, which means components such as tubes, capacitors, resistors, and wiring may be degraded or failing. Without proper restoration, the unit could be non-functional or prone to intermittent issues.

2. **Lack of Modern Features**

Unlike contemporary receivers, the WRR-3 lacks digital tuning, automatic frequency control (AFC), and modern signal processing. Tuning may require manual adjustments, and performance could be inconsistent without skilled maintenance.

3. **Parts Availability and Repair Challenges**

While some parts may still be available, others such as specific tubes or military-grade components could be difficult or expensive to source. Restoring the unit may require sourcing parts from surplus auctions, eBay, or specialized dealers, adding to the cost and complexity.

4. **Power Requirements**

The WRR-3 likely requires a stable power supply, possibly 115V AC or DC, depending on the model variant. Modern power sources may not be compatible without modifications, and power surges could damage the unit.

5. **Limited Use Case for Modern Applications**

While the WRR-3 is excellent for historical or educational purposes, its primary use case VLF navigation is largely obsolete. Modern GPS and satellite-based systems have rendered VLF navigation redundant for most applications. As a result, its practical utility is limited unless you are specifically working with vintage systems.

6. **Potential for Electrical Hazards**

Older military equipment often contains high-voltage components (e.g., tubes, transformers) that pose a risk of electric shock if not handled properly. Restoration should be done by someone experienced with high-voltage electronics.

7. **Cost of Restoration**

If the unit is not already functional, restoring it to working order could be costly. This includes replacing tubes, cleaning contacts, recalibrating circuits, and potentially rewiring sections. For a collector, the restored value may not always justify the investment.

8. **Legal and Export Restrictions**

If the WRR-3 is military surplus, it may be subject to export controls or require proper documentation for ownership. Some countries have restrictions on acquiring or exporting vintage military electronics.

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### **Conclusion**

The **Magnavox WRR-3** is a fascinating piece of radio history with strong appeal for collectors, enthusiasts, and those interested in vintage electronics. Its primary strengths lie in its historical significance, robust construction, and reliability in VLF reception qualities that make it valuable for educational and nostalgic purposes. However, its age, lack of modern features, and the challenges of restoration and maintenance make it less practical for contemporary use unless you are specifically working with legacy systems.

If you are acquiring the WRR-3 primarily for **collection, restoration, or educational purposes**, it can be a rewarding project with proper care. However, if you are looking for a **functional, modern receiver**, there are far more practical alternatives available today.

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### **Recommendation**

1. **If you are a collector or enthusiast:**

Purchase the WRR-3 if you are prepared to invest time and effort into restoring it. Consider joining vintage radio forums or ham radio groups for guidance on restoration techniques and parts sourcing. If you lack experience with electronics, consult a professional before attempting repairs.

2. **If you are seeking a functional VLF receiver:**

While the WRR-3 is historically significant, modern alternatives like the **Ten-Tec VLF-1** or **Icom R-75** (with VLF capabilities) may offer better performance and ease of use. If you specifically need VLF for amateur radio experimentation, these newer units provide digital tuning and better reliability.

3. **If you are working with vintage navigation systems:**

The WRR-3 could be useful in a museum or educational setting where its historical context is valued. Pair it with other compatible vintage equipment (e.g., Omega navigation receivers) to create a functional demonstration system.

4. **If you are unsure about restoration:**

Consider purchasing a **restored or fully functional** WRR-3 from a trusted seller to avoid the hassle of repairs. Alternatively, look for modern VLF receivers that offer similar functionality with modern conveniences.

Ultimately, the WRR-3 is best suited for those who appreciate its historical value and are willing to engage with the challenges of maintaining vintage technology. For most practical purposes today, newer receivers will serve better.

Details:

Mechanical digital frequency tuning control and mechanical band switch work. I am a one person operation and will answer all inquiries in as timely manner possibly can. Unit is in a slide out mount the cabinet. These radios are not often found on the civilian market.

Interior is very clean. Both worked with good volume. I am an extra class amateur operator. I powered the radio up and with longest antenna have an 80 meter dipole was able to receive an AM broadcast station on 550Khz as well several weak unknown type of signals lower frequencies.

I am not very well versed in VLF listening so that is the extent of my testing used front phone jacks for checking out audio on headphones and with a speaker. Covers 14Khz-600Khz. I test and describe the items sell to best of my ability. Slides operate smoothly.

All controls are operational and appear to be working correctly. Includes a short power cord with 4 pin connector. The receiver output and signal strength meters both work. Case has some scuffs and scratches however the face plate is clean with strong legible markings on all controls.

This is an/WRR-3 VLF communications receiver mfg by Magnavox for the USA Coast Guard.

specifications hamamateuradio:

  • brand: Magnavox
  • mpn: Wrr-3
  • model: An/wrr-3
  • type: Base Station
  • country of origin: United States

general hamamateuradio:

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

shipping hamamateuradio:

  • service: FedEx Ground / FedEx Home Delivery
  • carrier: FedEx
  • transit: 3-5 Days
  • class: Standard
  • cost: $109.66
  • type: Calculated

payments hamamateuradio:

  • credit card: Discover
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  • wallet: Google-pay

seller hamamateuradio:

  • city: Divide, Colorado
  • # reviews: 19310
  • rating: 99.9%

offer hamamateuradio:

  • availability: In Stock
  • sold: 0
  • quantity: 1
  • started: February 22, 2026
  • best offers: True
  • options: Ship-to-home

returns hamamateuradio:

  • policy: Returns Accepted
  • time: 14 Days
  • method: Money back
  • paid by: Buyer
type: base station, country of origin: united states,
category: electronics > radio communication > ham, amateur radio > ham radio receivers, sku: 13510281345056632,
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