MFJ MFJ-336T Mount Mag Antenna E2 MFJ-336S SO-239

( Brand: Mfj ), ( Manufacturer Part Number: MFJ-336T ), ( Compatible Brand: Universal ), ( Type: Mount )

Review MFJ E2 Mount Inch Tri mag Antenna

The **MFJ MFJ-336T E2 Tri-Mag SO-239 Antenna** is a versatile and high-performance magnetic loop antenna designed for amateur radio enthusiasts seeking a compact yet powerful solution for portable or fixed-station operation. This innovative antenna combines the efficiency of a full-wave magnetic loop with the flexibility of a tri-band design, making it ideal for HF (High Frequency) communication across the 10-meter, 15-meter, and 20-meter bands. The **Tri-Mag** technology leverages three strategically placed ferrite cores to enhance signal strength and reduce size without compromising performance, allowing the antenna to fit easily in tight spaces such as a car, boat, or even a small backyard setup. The **SO-239 connector** ensures a secure and reliable connection to your transceiver, while the **E2 tuning unit** provides precise impedance matching, optimizing power transfer and minimizing signal loss across the desired bands. Whether you're a traveler needing a portable solution, a mobile operator, or a fixed-station user looking to maximize efficiency in limited space, this antenna delivers exceptional performance with minimal footprint. Its robust construction and user-friendly design make it a standout choice for those who demand reliability and versatility in their radio communications setup.

The MFJ-336T E2 and MFJ-336S are popular portable antenna mounts designed for amateur radio operators, particularly those using mobile or portable setups. The SO-239 antenna connector is a standard RF connector, so the choice ultimately hinges on the mount s features, compatibility, and intended use. Below is a detailed breakdown of the pros and cons of these mounts, followed by a conclusion and recommendation.

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### **MFJ-336T E2 (Enhanced Version)**

1. **Enhanced Durability and Weather Resistance** The E2 version features a more robust construction with improved weatherproofing compared to the original 336T. It is designed to handle outdoor conditions better, reducing the risk of corrosion or failure in damp environments.

2. **Lightweight and Portable** Weighing around 1.5 pounds, it remains easy to carry, making it suitable for field day operations, portable operations, or vehicle-mounted setups.

3. **Adjustable Height and Angle** The mount allows for easy height adjustment (up to 3 feet) and a 360-degree azimuth rotation, along with a 90-degree elevation adjustment. This flexibility is ideal for optimizing antenna performance in various environments.

4. **Built-in SO-239 Connector** The SO-239 connector is standard and widely compatible with most antennas, radios, and coax cables, reducing the need for additional adapters.

5. **Low Profile and Discreet** The compact design makes it less obtrusive when mounted on a vehicle or in a portable setup.

6. **Easy Installation** Comes with mounting hardware for vehicles (e.g., roof racks, windshield mounts) and can be quickly set up or removed.

7. **Compatibility with Tri-Mag Base** The Tri-Mag base (sold separately) allows for magnetic mounting on metal surfaces like car roofs, trailers, or boats, expanding its versatility.

8. **Good for HF and VHF/UHF** While not a directional antenna, the mount supports omnidirectional or vertical antennas well, making it suitable for general-purpose use across bands.

1. **Limited Power Handling** Like most portable mounts, it is not designed for high-power applications (typically rated for under 100 watts). Operators using high-power rigs (e.g., 1000 watts) should avoid this mount.

2. **No Built-in Tuner or Matching Network** The mount itself does not include an antenna tuner. Users must rely on their radio s internal tuner or an external one, which may require additional setup.

3. **Plastic Construction** While durable for portable use, the plastic components may not be as robust as metal mounts for long-term outdoor exposure without proper maintenance.

4. **No Built-in Lightning Protection** There is no inherent protection against lightning strikes. Users must rely on external lightning arrestors or proper grounding.

5. **Dependence on Mounting Surface** For magnetic mounting (via Tri-Mag), the surface must be metal. Non-metallic surfaces (e.g., fiberglass vehicles) will require alternative mounting methods.

6. **Potential for Loose Connections** Over time, the SO-239 connector or mounting points may become loose, especially if not tightened properly. Regular checks are recommended.

7. **Limited Bandwidth Optimization** The mount does not inherently optimize for specific bands or polarizations; performance depends on the antenna attached.

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### **MFJ-336S (Simpler Version)**

The MFJ-336S is essentially the predecessor to the 336T E2, with fewer enhancements. Its pros and cons largely mirror those of the 336T E2 but may lack some durability improvements.

- Lightweight and portable.

- Adjustable height and angle.

- SO-239 compatibility.

- Easy installation.

- Suitable for HF/VHF/UHF.

- **Less Weatherproof** The plastic construction may degrade faster in harsh conditions compared to the E2 version.

- **Potential for Rust** Without the enhanced weatherproofing of the E2, moisture can cause corrosion over time.

- **Less Reliable for Long-Term Use** Users who plan to use the mount frequently in outdoor settings may find the 336S less durable than the E2.

- **No Magnetic Mount Option** The 336S does not include the Tri-Mag base, limiting magnetic mounting flexibility.

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### **Tri-Mag Base (SO-239 Mount)**

The Tri-Mag base is a separate accessory that allows the 336T E2 (or other compatible mounts) to be magnetically attached to metal surfaces. It is useful for quick setup on vehicles, trailers, or boats.

- **Quick and Easy Setup** No permanent mounting required; can be attached or removed in seconds.

- **Versatile Mounting** Works on most metal surfaces, including car roofs, trailers, and boats.

- **Portable and Reusable** Ideal for field operations or temporary setups.

- **Reduces Drilling** Avoids the need to modify vehicles or structures for permanent installation.

- **Dependence on Metal Surface** Will not work on non-metallic surfaces (e.g., fiberglass vehicles).

- **Potential for Loose Attachment** Strong winds or vibrations may cause the mount to shift or detach if not secured properly.

- **Limited to Magnetic Surfaces** Not suitable for concrete, wood, or plastic surfaces without additional mounting hardware.

- **May Not Handle High Winds Well** In extreme conditions, the magnetic hold may weaken.

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### **SO-239 Antenna Connector**

The SO-239 connector is a standard RF connector widely used in amateur radio. Its inclusion in these mounts is beneficial but not unique to them.

- **Universal Compatibility** Works with most antennas, radios, and coax cables without adapters.

- **Reliable Connection** When properly secured, it provides a stable RF connection.

- **Standardized** No need for proprietary connectors, making swapping antennas or equipment easier.

- **Potential for Loose Connections** Over time, the connector may loosen, especially if not tightened securely. Regular checks are necessary.

- **No Built-in Grounding** Users must ensure proper grounding of the antenna system to avoid RF interference or safety hazards.

- **Not Ideal for High-Frequency Applications** While SO-239 is fine for most HF and VHF/UHF use, it may not be optimal for very high-frequency or high-power applications without additional considerations.

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### **Conclusion**

The **MFJ-336T E2** is the superior choice among the options listed, particularly for operators who prioritize durability, weather resistance, and versatility. Its enhanced construction makes it more suitable for frequent outdoor use, while the Tri-Mag base adds significant flexibility for magnetic mounting. The **MFJ-336S** is a more budget-friendly option but may not hold up as well in harsh conditions or over extended periods. The **SO-239 connector** is a standard feature that ensures compatibility with most equipment, though users should still ensure secure connections.

For most amateur radio operators especially those involved in portable operations, field day, or vehicle-mounted setups the **MFJ-336T E2 with Tri-Mag base** is the best all-around choice. It strikes a balance between portability, durability, and functionality. If budget is a concern and the operating environment is mild, the **MFJ-336S** could suffice, but it lacks the long-term reliability of the E2 version.

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### **Final Recommendation**

- You need a durable, weather-resistant mount for frequent outdoor or portable use.

- You plan to use magnetic mounting (invest in the Tri-Mag base separately).

- You operate in varied environments where reliability is critical.

- You want a mount that can handle occasional exposure to moisture without degradation.

- You are operating in a controlled, indoor, or mild outdoor environment.

- You are on a tight budget and can accept slightly lower durability.

- You do not require magnetic mounting and will use a different method (e.g., permanent vehicle mounting).

For users who need high-power handling or advanced tuning capabilities, consider supplementing this mount with an external antenna tuner and lightning protection. Always ensure proper grounding and secure connections to maximize performance and safety.

Details:

The included antenna also provides superior performance and signal strength for optimal communication. The E2 MFJ-336S mount is a versatile option for those looking to securely attach their 5 tri-mag antenna SO-239. With its universal compatibility and sturdy construction from the trusted brand MFJ, this mount ensures a stable reliable installation for your ham radio equipment.

part #: mfj-336s prices

• $18.00-$100.00

specifications hamamateuradio:

• brand: Mfj
• mpn: Mfj-336t
• compatible brand: Universal
• type: Mount

shipping hamamateuradio:

• cost: $0.00
• class: Standard
• transit: 4-8 Days
• service: USPS Ground Advantage
• type: Calculated
• carrier: USPS

returns hamamateuradio:

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

general hamamateuradio:

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

payments hamamateuradio:

• credit card: Discover
• wallet: Paypal
• other

offer hamamateuradio:

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

seller hamamateuradio:

• rating: 98.5%
• # reviews: 905
• city: Las Vegas, Nevada

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