measure distance btwn 2 arduino dues using an x b radio..

im trying to determine the distance between arduino dues using an x b radio. What would be the best way to measure it?

Are you able to measure the distance between two mobile phones, while talking? Ofcourse you can use a measuring tape, I dont think any other option exist to measure the distance two device using Radio.

The only way is to time a pulse being sent and replied then take away the processing time.

Weedpharma

But if it's a radio pulse, and your Arduino can measure 4us, then the shortest distance you can measure is over a kilometer if I've done the math right. Is a way of beating this?

sarouje:
Are you able to measure the distance between two mobile phones, while talking? Of course you can use a measuring tape, I don't think any other option exist to measure the distance two device using Radio.

Ah! I was going to suggest the tape measure too!