Hi,
I have an ongoing project in school and therefore I need to build sort of a lift..
So luckily I found an old dc powered car antenna which I can make something out.
Now my actual question,
Is it possible to power this antenna or motor every 10 seconds for a second or something? So that the antenna rises a centimeter ever 10 seconds..
Btw I still have no eqquipment (arduino), so advice is always wlecome 
I hope someone can help me out.
Is it possible to power this antenna or motor every 10 seconds for a second or something?
Yes, it is. The Arduino will not provide the power, but it can control the power (through a transistor, turning the power off or on).
Btw I still have no eqquipment (arduino), so advice is always wlecome
And worth every penny...
the typical powered antenna will have a 12VDC motor, but will most likely have internal end switches. these will limit the travel so it does not damage itself.
you should be able to use PWM and control the motor speed.
some antennas are either full up or full down. That means that it would get power on and then go to the maximum with a signal. if that is the case, you may need to bypass the internal circuit and power it direct.
in any event, You will probably need to use an H-Bridge. these allow you to make the motor go in reverse or forward.