Radio waves for two way communication?

[Govind_Balaji]

Suppose I have a transmitter and receiver and my friend in the next room also has it. Can we both talk with each other with radio waves as we do in cell phone. I know we can't talk if he is several miles apart. But if he is just in the next room, can we communicate?

 

[A.T.]

I know we can't talk if he is several miles apart.

Why not?

 

[DennisN]

Hi, Govind_Balaji, I will reply by asking a couple of questions :

Suppose I have a transmitter and receiver and my friend in the next room also has it.

Yes...

Can we both talk with each other with radio waves as we do in cell phone.

Question 1: How do you think cell phones communicate?
Question 2: Have you heard about walkie-talkies?

I know we can't talk if he is several miles apart.

How do you know this? . If you can communicate or not depends (partly) on the power of the transmitters.

But if he is just in the next room, can we communicate?

What do you think?

 

[Govind_Balaji]

I am actually doing a science project for an exhibition. It's tomorrow and I think of substituting cell phone microwaves with radio waves along with some wires and conductors. It's a bit difficult to explain here. I just had a doubt whether it's a flaw. So I just made sure it's complete.

 

[sophiecentaur]

How were you intending to produce and receive your "Radio Waves"? What will the Science Project be saying and what is the planned audience?