selecting a rf cable

When selecting a rf cable, consider its characteristic impedance, rated power, attenuation, and maximum operating voltage. In the rf transmission of radio communication and broadcast television, the rf impedance of the transmitter, the output power, and the possible peak voltage should be combined, and a certain margin should be left. In combination with the environmental conditions used, the appropriate cable should be selected. It is important to note that when using rf cables, it is important to match the cable plug, cable socket and coaxial transfer switch with the same characteristic impedance, not to mix them so as not to cause a large wave reflection and form standing waves in the cable.