UHF male PL259 to UHF male Plug double straight Long RF Coax adapter connector

A UHF male PL259 to UHF male Plug double straight Long RF Coax adapter connector is a type of coaxial adapter used to connect two devices or cables that both have a UHF female (SO-239) connector. The adapter has a male UHF PL-259 connector on both ends, which allows it to join two female connectors.

This type of adapter is commonly used in RF (radio frequency) systems, particularly in amateur (ham) radio, citizens’ band (CB) radio, and marine VHF radio applications. Its primary function is to extend a coaxial cable or to provide a simple, direct connection between two pieces of equipment.

Technical Specification

Connector Type: UHF Male (PL-259) on both ends.
Impedance: Typically 50 ohms. It’s important to note that the UHF connector is considered to have a non-constant impedance due to its design, which can cause signal reflections and loss at higher frequencies (above 100-300 MHz).
Frequency Range: While the name suggests UHF, these connectors are most reliable for HF (High Frequency) and VHF (Very High Frequency) applications, generally up to 100 MHz, although some manufacturers claim functionality up to 3 GHz or 6 GHz.
Working Voltage: Rated for up to 500 volts peak, with some products capable of handling up to 4 kV peak voltage.
Material:
- Body: Usually nickel-plated brass.
- Center Pin/Conductor: Often brass, with plating such as gold or silver for improved conductivity.
- Insulator: PTFE (Teflon) is common for higher-quality connectors due to its excellent dielectric properties. Less expensive connectors may use a phenolic insulator.
Dimensions: These vary depending on the manufacturer and the specific product. A typical PL-259 connector has an outside diameter of about 18 mm (0.71 inches).
Environmental:
- Operating Temperature: A common range is -40°C to +85°C or even up to +165°C.
- Weatherproofing: The UHF connector is generally not weatherproof.