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Connectors are a vital component of electronic devices and systems, providing a secure and stable connection between different components. They are available in a variety of shapes and sizes, and each connector type has specific characteristics that make it suitable for particular applications. But what are these connectors? Antenna connectors, jack connectors, microphone connectors, RCA connectors and RJ connectors fall into this category.

What types of antenna connectors exist?

Antenna connectors are used to connect antennas to electronic devices such as radios, televisions and routers. There are two main types: 50 ohm and 75 ohm connectors.

How does the quality of the antenna connector affect the strength and stability of the signal?

In all cases, good quality connectors should be used. They do not need to be gold plated, but the connection should be stable and the contact should be secure. It is important to take care of the cable during installation, not to break it, preferably bend it in a large arc so that the internal structure is not damaged, as this can cause signal loss. Also make sure to use the shortest possible antenna cable.

Which type of connector is most compatible with your device?

In order to return home with the right connector, we must first determine the type of connector! The most common is the F connector, which has a rabbeted or threaded attachment. This version is used for satellite systems and distributors. The best known is the coaxial plug, also known as KODU. This is the connector that plugs into the television or set top box. Last but not least, let's talk about the coaxial sleeve, also known as the KODU. This version is used for radios and wall sockets. Of course, there are countless other types and varieties of connectors, but for now we have mentioned the most commonly used ones. Once we have chosen the type of connector we need, we need to decide what kind of device we can or can't mount it on. With this in mind, we distinguish between ratchet, crimp, compression and self-compression connectors.

What you need to know about the 50 ohm connector

50 ohm connectors are primarily used in radio frequency (RF) applications such as mobile networks, Wi-Fi and Bluetooth. The most common 50 ohm connectors are BNC, TNC, N-type and SMA connectors. BNC connectors are typically used in applications requiring fast connection and disconnection. TNC connectors are similar to BNC connectors, providing a threaded connection that results in a more secure connection. N-type connectors are larger and provide a wider frequency range than BNC and TNC connectors. SMA versions are smaller and are generally used in high frequency applications.

Features of the 75 ohm connector

75 ohm connectors are primarily used in video and audio applications. The most common 75 ohm connectors are the F-type and BNC versions. F-type models are used in cable TV and satellite systems, while BNC connectors are used in CCTV and video surveillance systems.

When to use a jack connector?

Jack connectors are used to connect audio and video devices. They come in different sizes and shapes, including 3.5mm, 6.35mm and 2.5mm. Jack connectors are classified into both mono and stereo types, with mono versions having a single ring and stereo types having two rings.

When to use microphone jacks?

Microphone jacks are used for amplifying microphones, connecting to mixers and recording devices. The DND webshop has 4, 5, 6 and 8-pole microphone connectors for CB microphones.

What are the different types of RCA connectors?

RCA connectors are used to connect audio and video devices such as televisions, DVD players and amplifiers. They are designed to provide a high quality analogue connection. RCA models are available in two types: male and female. Male connectors have a metal collar around the centre pin, while female connectors have a metal ring around the centre hole.

RJ connectors

RJ connectors, also known as Registered Jack connectors, are used to connect telecommunications equipment such as telephones, modems and Ethernet cables. They come in a variety of sizes and shapes, including RJ-11, RJ-12 and RJ-45 models. RJ-11 and RJ-12 connectors are typically used in telephone systems, while RJ-45 versions are used in Ethernet networks.

What types of cables or devices can these connectors be combined with?

With coaxial cables, the most important parameters being impedance, loss or attenuation, load capacity and propagation speed. To achieve maximum data transmission efficiency, this cable must be perfectly connected at one end to the antenna and at the other end to the transmitter or receiver. Most coaxial cables have an impedance of 50 Ohm or 75 Ohm. The attenuation characteristics of the cable are given in dB by the manufacturers, which indicate how much of the received signal is lost along the length of the cable.

The resistance and dielectric characteristics of the cable have a significant effect on the attenuation properties. The maximum power output of a coaxial cable depends on several factors, such as the peak operating voltage that the dielectric can withstand, the resistive loss, and the loss of insertion of the antenna. In coaxial cable, capacitive and inductive properties reduce the data propagation speed. This in turn affects the phase of the transmitted and received signals.

In recent years, a number of standards have been developed that apply to coaxial cables. Examples are RG58, RG59 and RG174.The characteristics of RG58 are: it is a 50 Ohm cable, has an outer diameter of 5 mm, a copper braid shielding, a speed factor of 0.66, an attenuation of 15.2 dB at 100 m and 100 MHz, which increases to 34.4 dB/100 m at 500 MHz. RG59 is a 75 Ohm impedance coaxial cable. This cable has an outer diameter of 6,1 mm and a maximum voltage tolerance of 2000 V. The attenuation characteristics are 15,7 dB/100 m at 200 MHz and 33,6 dB/100 m at 800 MHz. The RG174 coaxial cable has a diameter of 2,8 mm, an impedance of 50 Ohm like the RG58 cable, but a maximum voltage rating of 1100 V. Its attenuation is 41.5 dB/100 m at 200 MHz and 68 dB/100 m at 500 MHz.

We offer hundreds of RF connectors in 50 and 75 ohm versions. Amphenol (also known as UHF connector), mini UHF, BNC, TNC, RPTNC, N, SMA, RPSMA, FME connectors, suitable for cables of different thickness. The brands sold by DND webshop include SSB, Draka, Telegartner and more. The 75 ohm connectors and adapters include BNC, TV coax connectors and F connectors, but also the cables for these can be purchased by our customers in our webshop. Our company undertakes custom cable production in both small and large series, if required, please let us know in advance the requested quantity and type of connector.