====== Attenuator (ATT) ======

At high signal levels coming from the antenna, overloading can occur. A poorly dimensioned RF preamplifier can be completely overloaded or mirror frequencies occur at a distance of the double intermediate frequency, i.e. a station falsely appears a second time on the dial and can even mask a weak desired signal.

With high quality receivers, the radio frequency amplification can be reduced using the [[RF Gain]] control, but additionally an **attenuator** can often be activated, which attenuates the signal by 10 - 20 dB close to the antenna input.

More simple sets have a LOCAL / DX switch, often near an external antenna input; in the LOCAL position, the attenuator is effective.

In case of a questionable mirror frequency reception, the attenuator can be switched on or the LOCAL position selected, if the station then disappears, you receive a "ghost signal".