radar help

[dstich]

dose anyone know where i can get a directional radio transmiter and recever or where i can get schematics and plans to make a small short range radar and do lazers reflect enough off walls and furnature to be picked up by a photo senser and is there any way to make a long range like 20 to 50 feet proxmity detector thanks.

 

[Russlk]

The security lights that you can buy at the hardware store have that kind of range, buy one.