long range remote control

[dsesmg]

Hi, I've seen a remote control used for cranes.
Could you teach me how they works? I believe there are lots of different method doing this.
I want to know the principle of how this works, because, I want to make something phisically happen remotelyby controlling such remote controls like a microcontroller.
hopefully, I want to have 100m range even in the complex buildings.
Car's door lock system mechanism is just what I need. I hope to have longer control range than such car door lock system.

[corrado33]

First hit on google for "long range RF"

http://www.linxtechnologies.com/Products/RF-Modules/LR-Series-Long-Range-Wireless-Communication-Modules/

Works 2000 to 3000 feet. 

Incorporate that into some circuit that controls a solenoid to unlock and lock your car door and you should be good.

Basically, just look for some long range RF chips.

[dsesmg]

Hi, thank you very much for letting know that.
3000feet control range is just what I need.
Hopefully, I want to flash some LED before controlling solenoids.
When a button(like this one http://www.eleparts.co.kr/pdf/jps2285.pdf) on the transmitter is pushed, I need LEDs on the receiver to be flashed. Could you advise me how to set up such functionality using the RF modules like the one you mentioned? http://www.linxtechnologies.com/Products/RF-Modules/LR-Series-Long-Range-Wireless-Communication-Modules/
I've seen the module data guide of both transmitter and receiver but frankly, I need more help and advise to simplify the circuit for only the functionality I mentioned.