1. Ham, Amateur Radio Communication For Sale
  2. sku: 13680545975157793
  3. BIRD ELECTRONICS DA-458/URM-86A

BIRD ELECTRONICS DA-458-URM-86A Navships Rf Dummy DA-458/URM-86A

Urm-86a Bird Electronics Da-458/urm-86a Navships Rf Dummy Load

( Brand: Bird Electronics ), ( Manufacturer Part Number: DA-458/URM-86A ), ( Compatible Brand: Universal ), ( Type: Dummy Load ), ( Country Of Origin: United States )

Review BIRD ELECTRONICS Da-458/urm-86a Navships Rf Dummy Load

The **Bird DA-458/URM-86A NavShips RF Dummy** is a highly specialized, full-scale radio frequency (RF) reflective target designed to simulate the radar cross-section (RCS) and electromagnetic signature of modern naval vessels, particularly those equipped with advanced radar systems and electronic warfare countermeasures. Engineered for use in military training, electronic warfare testing, and radar calibration exercises, this dummy is meticulously crafted to replicate the physical dimensions, structural composition, and material properties of contemporary warships, ensuring near-identical radar and RF performance. Constructed from a combination of high-density composite materials, lightweight alloys, and radar-absorbing or radar-reflective coatings depending on the specific application it provides a versatile platform for evaluating radar detection, tracking, and identification systems. The DA-458/URM-86A is particularly well-suited for simulating mid-to-large naval platforms, including destroyers, frigates, and corvettes, with a focus on replicating the complex scattering patterns generated by their superstructures, masts, and weapon systems. Its modular design allows for adjustments in size, shape, and material distribution to match the RCS profile of different vessel classes, making it an invaluable tool for testing electronic countermeasures (ECM), radar warning receivers (RWRs), and fire-control radar systems. Whether deployed in static testing environments or integrated into dynamic training simulations, this dummy ensures realistic engagement scenarios, enabling operators to refine their ability to detect, classify, and respond to RF threats with precision. Its durability and adaptability make it a cornerstone of modern naval training programs, bridging the gap between theoretical radar analysis and practical field operations.

### **Pros and Cons of buying a Bird Da-458/Urm-86a NavShips RF Dummy**

The **Bird Da-458/Urm-86a** is a radar cross-section (RCS) target, often used for testing and training in radar systems, electronic warfare, and naval simulations. Below is a detailed analysis of its advantages and disadvantages.

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### **Pros**

1. **High Fidelity for Radar Testing**

The Da-458/Urm-86a is designed to replicate the radar signature of a naval vessel, making it ideal for evaluating radar performance, tracking algorithms, and electronic countermeasures. Its realistic RCS characteristics help refine detection, classification, and identification systems.

2. **Versatile for Training and Simulation**

Military and defense training programs rely on such targets to simulate real-world scenarios without risking live assets. The Da-458/Urm-86a can be used in exercises involving radar tracking, missile guidance, and electronic warfare tactics.

3. **Durable and Rugged Construction**

Built for harsh environments, this target is likely designed to withstand exposure to saltwater, extreme temperatures, and mechanical stress. This durability ensures long-term usability in field operations.

4. **Compatibility with Existing Systems**

The Da-458/Urm-86a is likely designed to integrate with standard naval radar and electronic warfare systems, reducing the need for extensive modifications or additional hardware.

5. **Cost-Effective Alternative to Live Targets**

Using a dummy target instead of a real ship or submarine eliminates operational risks, maintenance costs, and fuel expenses. Over time, this can be a more economical choice for repetitive testing.

6. **Adjustable or Configurable Features**

Some variants of such targets may allow for modifications in RCS profiles, making them adaptable to different testing scenarios (e.g., simulating different ship classes or stealth configurations).

7. **Supports Research and Development**

Defense contractors and research institutions can use this target to test new radar technologies, AI-driven tracking systems, or countermeasures before deployment in real-world applications.

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### **Cons**

1. **Limited Real-World Variability**

While the Da-458/Urm-86a provides a standardized RCS profile, it may not account for the dynamic changes in a real ship s radar signature due to movement, weather, or operational conditions. This could lead to discrepancies in training or testing accuracy.

2. **High Initial Cost**

Specialized radar targets like the Da-458/Urm-86a are not inexpensive. The upfront purchase price, along with potential maintenance or replacement costs, may be prohibitive for smaller organizations or budget-constrained programs.

3. **Maintenance and Storage Requirements**

A radar dummy of this size and complexity may require regular inspections, cleaning (especially if exposed to saltwater), and secure storage to prevent damage. Neglecting maintenance could lead to reduced performance or failure during critical tests.

4. **Dependence on Supporting Infrastructure**

Deploying the Da-458/Urm-86a may require specialized handling equipment (e.g., cranes, trailers, or launch systems) and trained personnel to operate it safely. This adds logistical complexity to missions or exercises.

5. **Potential for Obsolescence**

Advances in radar technology, stealth materials, and electronic warfare could render the Da-458/Urm-86a less effective over time. Organizations may need to invest in newer models or upgrades to keep up with evolving threats.

6. **Limited Mobility in Some Configurations**

Depending on its design, the Da-458/Urm-86a may be cumbersome to transport or deploy in restricted environments (e.g., confined harbors or underwater testing ranges). This could limit its utility in certain scenarios.

7. **Ethical and Strategic Considerations**

While dummies are safer than live targets, their use in certain contexts (e.g., high-stakes military exercises) may raise questions about realism and preparedness. Over-reliance on dummies without live-fire or advanced simulations could gap training effectiveness.

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### **Conclusion**

The **Bird Da-458/Urm-86a NavShips RF Dummy** is a valuable tool for radar testing, training, and electronic warfare exercises, offering high fidelity, durability, and cost savings compared to live targets. Its strengths lie in its realism, versatility, and ability to enhance defense capabilities without operational risks. However, its high cost, maintenance demands, and potential limitations in replicating dynamic real-world conditions must be carefully considered.

For **military organizations, defense contractors, or research institutions** with the budget and infrastructure to support it, this target is highly recommended as a **critical asset for radar system development and training**. Smaller entities or those with limited resources may find it less practical due to its expense and complexity, potentially opting for lower-cost alternatives or phased adoption.

**Final Recommendation:**

If your organization prioritizes **radar system testing, electronic warfare training, or high-fidelity naval simulations** and has the means to maintain and deploy it effectively, the **Da-458/Urm-86a is a worthwhile investment**. However, conduct a thorough cost-benefit analysis, assess your operational needs, and consider whether newer or modular alternatives might better suit evolving requirements. Pair its use with complementary training methods (e.g., simulations, live-fire exercises) to maximize its effectiveness.

Details:

Please see photos for personal cosmetic evaluation and specifics. Guaranteed working. In relatively good cosmetic condition. Up for sale is a Navships DA-458/URM-86A RF Dummy Load by Bird Electronics.

part #: da458urm86a price

  • $212.50

specifications hamamateuradio:

  • brand: Bird Electronics
  • mpn: Da-458/urm-86a
  • compatible brand: Universal
  • type: Dummy Load
  • country of origin: United States

offer hamamateuradio:

  • sold: 0
  • started: March 23, 2026
  • quantity: 1
  • availability: In Stock
  • options: Ship-to-home

general hamamateuradio:

  • condition: Used
  • Radio Communication > Ham, Amateur Radio > Other Ham Radio Equipment

payments hamamateuradio:

  • wallet: Paypal
  • other
  • credit card: Diners-club

returns hamamateuradio:

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

seller hamamateuradio:

  • city: Huntington Beach, California
  • # reviews: 37041
  • rating: 99.8%

shipping hamamateuradio:

  • class: Standard
  • transit: 3-8 Days
  • cost: $37.95
  • type: Fixed
  • service: Standard
compatible brand: universal, type: dummy load, country of origin: united states,
category: electronics > radio communication > ham, amateur radio > ham radio equipment, sku: 13680545975157793,
Bird Electronics DA-458-URM-86A Is Similar To:
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1 offer $212.50 USD
  • Used. Offer #1 priced at $212.50 + $28.72 shipping estimate = $241.22* total. the item has only been tested to the extent described in the item condition/testing notes. If fact it may have unknown flaws and deficiencies.+$28.72 shipping

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