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  3. PASTERNACK 187-258A-8

PASTERNACK 187-258A-8 Atm Wave Female Connector Grooved WR-187 Flange

187-258a-8 Pasternack Atm Wr-187 Wave Guide To Female Sc Connector Grooved Flange

( Brand: Pasternack ), ( Manufacturer Part Number: 187-258A-8 ), ( Type: Adapter )

Review PASTERNACK Atm Wave Guide To Female Sc Connector Grooved Flange

The **Pasternack 187-258A-8ATM WR-187 Waveguide Female Connector with Grooved Flange** is a high-performance, precision-engineered RF/microwave component designed for demanding applications in telecommunications, satellite communications, radar systems, and test equipment. This robust connector is specifically tailored for use with WR-187 waveguide, a standard dimension in the X-band frequency range (8.0 to 12.4 GHz), offering exceptional signal integrity and minimal insertion loss while maintaining a secure, repeatable connection. The grooved flange design ensures a tight, leak-proof seal, making it ideal for environments where reliability and durability are critical, such as outdoor installations, aerospace, or high-power transmission scenarios. Constructed from high-quality materials, including a durable metal housing and a corrosion-resistant finish, this connector is built to withstand harsh conditions, including temperature fluctuations, vibration, and exposure to moisture or contaminants. Its female thread interface allows for easy integration with male connectors, flanges, or waveguide assemblies, providing flexibility in system design. The 8ATM pressure rating indicates its ability to operate under significant environmental pressures, further enhancing its suitability for rugged applications. Whether used in military communications, satellite uplinks, or laboratory testing, the Pasternack 187-258A-8ATM delivers consistent performance, low reflection coefficients, and long-term stability, making it a trusted choice for engineers and technicians seeking precision and reliability in waveguide-based RF systems.

### **Pros and Cons of buying a Pasternack 187-258A-8 (ATM WR-187 Waveguide Female Connector with Grooved Flange)**

#### **Pros:**

1. **High-Frequency Performance** The WR-187 waveguide connector is designed for use in the 3.3 GHz to 5.85 GHz frequency range, making it suitable for applications requiring high-bandwidth signal transmission, such as radar systems, satellite communications, and microwave links.

2. **Durability and Reliability** The grooved flange design ensures a secure, repeatable connection with minimal signal loss, reducing the risk of misalignment or poor contact over time. This is particularly important in harsh or high-vibration environments.

3. **Low Insertion Loss** Waveguide connectors like this one are engineered to minimize signal attenuation, ensuring efficient power transfer with minimal energy loss.

4. **Compatibility with Existing Systems** The WR-187 standard is widely used in military, aerospace, and industrial applications, meaning it is likely to integrate seamlessly with other compatible equipment.

5. **Corrosion Resistance** Many waveguide connectors in this series are made from materials like brass with gold plating or stainless steel, which resist oxidation and environmental degradation, extending the component s lifespan.

6. **Precision Engineering** The tight tolerances in waveguide connectors ensure consistent performance, which is critical in applications where signal integrity is paramount.

7. **Easy Installation** The grooved flange design simplifies alignment and mounting, reducing installation time and potential errors compared to traditional threaded connectors.

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#### **Cons:**

1. **High Cost** Waveguide connectors, especially high-quality ones from reputable manufacturers like Pasternack, are significantly more expensive than coaxial connectors. This may be a barrier for budget-conscious projects.

2. **Specialized Knowledge Required** Working with waveguide systems often demands expertise in RF engineering, as improper handling or installation can lead to signal degradation or mechanical failure.

3. **Bulkiness and Weight** Waveguide components are larger and heavier than coaxial connectors, which may complicate integration into space-constrained or portable systems.

4. **Limited Availability of Replacement Parts** Unlike common coaxial connectors, finding replacement or compatible parts for waveguide connectors can be challenging, especially for niche applications.

5. **Potential for Misalignment** Despite the grooved flange, improper handling during installation or disconnection can still lead to misalignment, causing signal loss or damage.

6. **Higher Maintenance Requirements** Waveguide systems may require periodic inspections to ensure cleanliness and proper sealing, as dust or debris can affect performance.

7. **Not Suitable for Low-Frequency Applications** The WR-187 is optimized for mid-to-high microwave frequencies; for lower-frequency applications, other connector types (e.g., coaxial) would be more appropriate.

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### **Conclusion**

The **Pasternack 187-258A-8 (WR-187 waveguide female connector with grooved flange)** is an excellent choice for applications demanding high-frequency performance, reliability, and low signal loss. Its precision engineering and durability make it ideal for military, aerospace, and industrial RF systems where signal integrity is critical. However, its high cost, specialized requirements, and physical limitations may make it impractical for smaller-scale or low-frequency projects.

### **Recommendation**

**Buy this connector if:**

- You are working on a **high-frequency RF system** (3.3 GHz 5.85 GHz) where waveguide performance is necessary.

- Your application requires **durability, low insertion loss, and secure connections** in demanding environments.

- You have access to **RF engineering expertise** for proper installation and maintenance.

- Budget constraints are not a major concern, as the cost is justified by performance.

**Avoid this connector if:**

- Your project operates at **lower frequencies** where coaxial connectors would suffice.

- You are working with **tight budget constraints** and can use a more cost-effective alternative.

- Your system has **space or weight limitations** that make waveguide components impractical.

- You lack **experience with waveguide systems**, as improper handling could lead to performance issues.

For most **high-end RF applications**, this connector is a strong investment. For simpler or lower-frequency needs, consider coaxial connectors or other waveguide alternatives (e.g., WR-28 for higher frequencies or WR-90 for lower ones). Always verify compatibility with your broader system requirements before purchasing.

Details:

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part #: 187258a8 price

  • $79.99

specifications coaxcabl:

  • brand: Pasternack
  • mpn: 187-258a-8
  • type: Adapter

general coaxcabl:

  • Radio Communication > Parts Accessories > Coax Cables Connectors
  • condition: Used

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  • started: March 2, 2026

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type: adapter,
category: electronics > radio communication > coax cables connectors, sku: 13543476900337604,
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