what does the antenna relay do?

[doodaa617@aol.com]

i need to know if the antenna relay in my 1993 lexus sc300 is good.what is its function and what does it control?any help would be appreciated.

[autotoys]

It usually takes a signal from the head unit, whether it be the audio signal (low voltage) or a dedicated low voltage output and then converts it to 12 volt which the antenna can use. It can also supply voltage when needed to raise the antenna and to keep it raised and remove it to lower the antenna.

See http://www.autotoys.com/New_Tech/DIY...er_antenna.htm