0
There are two main types of electric car aerial; automatic and semi-automatic. Automatic ones raise or lower when the ignition and/or the radio is turned on. Semi-automatic ones have a selector switch on the dashboard. When either of the conditions shown above exist, a relay turns ON and passes power to a motor at the base of the aerial. The motor then raises the aerial until it reaches its upper position where a limit switch breaks the circuit. The relay remains in the ON position and the aerial remains in the raised position until the ignition and/or the radio is turned off. When the ignition and/or the radio is turned off, the relay goes into the OFF condition. Power now flows through a second circuit in the relay and also through a second circuit in the aerial motor to reverse the drive and lower the aerial until a second, lower limit switch is broken. The relay is a single-throw, double-pole unit. The aerial motor is a three-wire unit and often incorporates a circuit breaker.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoThey collect radio waves from the air and feed them to the radio.
Add your answer:
Earn +20 pts
What is the song aerials about?
this song is about the children, who did not want to sleep
What is the tempo for system of a down aerials?
163 bpm
What key is aerials by system of a down in?
C minor
Who is the kid in the aerials music video?
He's not real.. he's implemented in the video with advanced computer animation.
Is there any song you can play without a g string on acoustic guitar?
Aerials by System of a Down, drop C tuning
How are digital aerials different from analog ones?
Digital aerials get a better quality of picture than do analog aerials. in addition, digital aerials can get high definition signals over the air,where analog aerials cannot.
Where can you work in Colorado Springs at 16?
You are able to work at Aerials Gymnastics, Plato's Closet, and Hollywood Video
Is swat better than aerials all-stars?
Nope, Aerials All-stars are the best :)
Who were the winners in women's aerials at the Pyeongchang 2018 Olympics?
Hanna Huskova of Belarus won the gold medal in women's aerials. Zhang Xin of China won the silver medal in women's aerials. Kong Fanyu of China won the bronze medal in women's aerials.
What is the plural of aerial?
aerials
Do wireless laptops have aerials?
no. :)
Where can one shop for car aerials?
Car Aerials can be bought at many typical online stores such as Amazon and eBay. BestBuy offers popular car aerials at a price ranging from 18 USD and up.
Why do satellites have different aerials and positional orbits?
Satellies have different aerials and positional orbits due to the molecular gravitional pull of the moon and the Earth's surface. The use of the aerials in the satellites assist in the communication between the microwave fields of the transmission towers.
Who won the gold medal in women's aerials at the Pyeongchang 2018 Olympics?
Hanna Huskova of Belarus won the gold medal in women's aerials.
Who won the silver medal in women's aerials at the Pyeongchang 2018 Olympics?
Zhang Xin of China won the silver medal in women's aerials.
Who won the bronze medal in women's aerials at the Pyeongchang 2018 Olympics?
Kong Fanyu of China won the bronze medal in women's aerials.
What are radio and television aerials called?
Antennas
