PL-259 UHF Connector with UG176 Adapter - Male Plug for RG-8X Coax Cable
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PL-259 UHF Connector with UG176 Adapter - Male Plug for RG-8X Coax Cable

PL-259-8X-G • Solder Type • Gold-Plated Brass for Better Conductivity & Less Signal Loss

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This is a solder-style, gold-plated PL-259 connector with a DooDad® cable strain relief and a UG176 reducing adapter for smaller diameter RG8X cable.

• Gold-plated brass to better withstand the elements and to minimize traditional connector-borne signal loss
• Since the majority of the signal travels on the surface of the connector, with gold's very high conductivity, these connectors ensure the best possible connectivity

How to Install —
Click here for the installation instructions for this connector.

Heavy on the technical side...
The UHF connector is a coaxial RF connector that is used for frequencies in the HF and the bottom end of the VHF spectrum. This RF connector has a rugged construction, and is satisfactory for many applications.

Originally designed to cover frequencies in the range 0.6 to 300 MHz, UHF connectors were marketed for use in the radio industry. However, in view of the fact that the frequency of operation for the connector extended to 300MHz - the bottom of the UHF band of frequencies - it was given the name of UHF connector.

The UHF plug is referred to as a PL-259 coaxial connector, and the socket as an SO-239 connector. These numbers arise from the original military numbers given to the UHF connectors.

These coaxial connectors have a threaded coupling which prevents them from being removed accidentally. It also enables them to be tightened sufficiently to enable a good low resistance connection to be made between the two halves.

The basic RF connector (PL-259) is has a relatively large threaded hole through which the coax cable enters. This is suitable for large, low loss cable, and also makes the connector suitable for relatively high power applications.
Where smaller cable is to be used a reducer sleeve (UG175 or UG176) can be used. This reducer sleeve screws into the threaded coax cable entry hole may be used to make the cable entry diameter suit the size of the cable being used.

A drawback of UHF connectors is that they have a non-constant impedance. This limits their use to frequencies of up to 300 MHz -- suitable for many applications, provided that the frequencies do not rise above 300 MHz.

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