NWSA Telecommunications Tower Technician 1 (TTT-1)

A measure of the signal reflected back towards the transmitter due to an impedance mismatch. Unwanted interference signals generated when two or more carrier frequencies mix at a non-linear junction, such as a corroded or loose connector. The loss of signal strength (attenuation) as it travels along the length of a coaxial cable. External radio frequency interference from nearby broadcast towers or other cell sites.