Antennikaapeli

Antennikaapeli, often translated as antenna cable or coaxial cable, is a type of electrical cable characterized by an inner conductor surrounded by an insulating layer, then by a conductive shield, and finally by an outer insulating layer. This construction is designed to transmit radio frequency signals with minimal loss and interference. The impedance of the cable, typically 50 or 75 ohms, is a critical characteristic that must match the impedance of the connected devices for optimal signal transfer.

In its most common applications, antennikaapeli connects an antenna to a receiver or transmitter. This includes devices like televisions, radios, and Wi-Fi routers. The cable's shielding is essential for preventing electromagnetic interference from external sources, such as other electronic devices or power lines, from corrupting the signal. Conversely, it also prevents the signal within the cable from radiating outwards and causing interference to other devices.

Different types of antennikaapeli exist, varying in size, shielding effectiveness, and flexibility. Common examples include RG-6, RG-59, and LMR series cables, each suited for specific applications and distances. The quality of the connectors used with antennikaapeli also plays a significant role in signal integrity. Proper installation and maintenance are crucial to ensure reliable performance of the connected equipment.