Description
The UHF series is the standard for high-wattage HF and VHF applications. This male (plug) variant is specialized for RG217, a high-performance cable known for its large 13.8mm (0.545″) outer diameter and double-braided shielding. Because RG217 is significantly thicker than standard RG8 or RG213, this connector features a custom-bored rear entry and a heavy-duty internal structure to accommodate the cable’s expanded dielectric and heavy-gauge center conductor.
This connector utilizes a traditional all-solder termination method, which is the preferred choice for the heavy conductors found in RG217. The center conductor is soldered into the oversized center pin, and the outer shielding is soldered through the body’s access ports, ensuring a low-resistance, high-current electrical path. Manufactured with a nickel or silver-plated brass body and premium PTFE (Teflon) insulation, it provides exceptional thermal stability and voltage breakdown resistance, making it ideal for high-power linear amplifiers and backbone antenna systems.
Key Technical Advantages
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Oversized RG217 Precision Fit: Specifically calibrated for the 14mm-class dimensions of RG217 cable, ensuring a seamless mechanical transition and high pull-off resistance for heavy cable runs.
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Maximum Power Handling: The all-solder design provides a permanent, high-conductivity bond capable of managing the extreme RF power levels typical of maritime transmitters and high-wattage base stations.
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Superior Shielding Integrity: Accommodates the double-braided shield of RG217, allowing for a robust ground connection that minimizes signal leakage and EMI in sensitive environments.
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High-Voltage Reliability: Features high-grade PTFE dielectric to prevent arc-over and maintain electrical stability during high-duty-cycle, high-power transmissions.
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Industrial Grade Durability: The heavy-walled brass construction ensures long-term protection against mechanical stress and environmental oxidation in harsh outdoor or shipboard deployments.
Key Features
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Interface Type: UHF Male (PL-259 Plug) with 5/8-24 UNEF threading.
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Termination Method: All-Solder (Center Pin and Shield) for maximum conductivity.
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Cable Compatibility: Optimized specifically for RG217 and similar large-bore coaxial cables.
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Premium Construction: Features a plated brass body and high-performance PTFE dielectric.
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Common Application: Maritime radio transmitters, high-power HF/VHF amplifiers, and industrial RF distribution.
Technical Summary
| Parameter | Specification |
| Impedance | 50 Ohm (Nominal) |
| Frequency Range | DC – 300 MHz (Performance to 500 MHz) |
| Body Material | Brass (Nickel or Silver Plated) |
| Contact Material | Brass or Phosphor Bronze (Silver/Gold Plated) |
| Dielectric | PTFE (Teflon) |
| Coupling Mechanism | Threaded (5/8-24 UNEF) |
| Operating Temp | -40°C ~ +125°C |







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