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A Guide to the Different Types of Coaxial Cables

 
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PostWysłany: Wto Mar 29, 2022 11:52 pm    Temat postu: A Guide to the Different Types of Coaxial Cables Odpowiedz z cytatem

A Guide to the Different Types of Coaxial Cables



Coaxial cables are a type of transmission cable used to transmit radio frequency (RF) signals. They generally consist of four layers—the inner conductor layer, the inner conductor insulating layer, the conductive shield layer, and the insulating outer jacket layer. This shielded design enables signal carrying voltage to flow through the central conductor with minimal interference from outside electrical and/or magnetic fields. Get more news about bnc coaxial cable connectors,you can vist our website!

There are many types of coaxial cables available—varying in design and size—to suit different applications. One of the key design elements by which coaxial cables can be categorized is connector type—i.e., the mechanism that connects the cable to other devices. Below, we highlight the advantages and disadvantages of several common types of coaxial cable, based on connector, as well as their typical applications.
Bayonet Neill-Concelman (BNC) coaxial cable connectors are one of the most commonly used connector types. They feature a twist and snap bayonet connection design that requires a quarter-turn to form a connection.

Typical applications include commercial audio/video transmission systems and RF test equipment (e.g., frequency generators, network analyzers, and oscilloscopes).

Threaded Neill-Concelman (TNC) connectors are a miniature threaded variation of BNC connectors. However, they are waterproof and more rugged.

Subminiature Version A (SMA) connectors are 50 Ω connectors. They are available in several formats, including male vs. female, straight-through vs. right-angled, and more.

Key advantages of SMA connectors include:

Small size, light weight. They are smaller and lighter than TNC connectors, making them suitable for applications where size and weight are a concern.
High frequency capacities. They can operate with frequencies up to 18 GHz.
Some of the disadvantages include:

Less robustness. They are less suitable for use in harsh environments than larger connectors.
Unsuitable for frequent connection/disconnection. They are not designed for applications that require frequent connection and disconnection.
QMA connectors are similar to SMA connectors. However, they have a snap-lock design that allows for faster and easier connection/disconnection and 360° rotational capabilities after connection that allows for better installation flexibility.

Other key advantages of QMA connectors include:

High power capacities. They can handle higher power levels than some of the other connector types.
High frequency capacities. They can operate with frequencies up to 18 GHz.
Their primary disadvantage is the lack of waterproofing. They are not suitable for use in environments where exposure to moisture is expected. However, they are ideal for use in industrial and communications applications that require the maintenance of the shielding barrier.
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