Radio waves for two way communication?

In summary, the conversation discusses the possibility of using radio waves to communicate between two people in close proximity, similar to how cell phones use radio waves. The conversation also touches on the limitations of radio wave communication at longer distances and the use of radio waves in a science project.
  • #1
Govind_Balaji
83
0
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?
 
Science news on Phys.org
  • #2
Govind_Balaji said:
I know we can't talk if he is several miles apart.
Why not?
 
  • #3
Hi, Govind_Balaji, I will reply by asking a couple of questions :smile::

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

Govind_Balaji said:
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?

Govind_Balaji said:
I know we can't talk if he is several miles apart.
How do you know this? :smile: . If you can communicate or not depends (partly) on the power of the transmitters.

Govind_Balaji said:
But if he is just in the next room, can we communicate?
What do you think? :smile:
 
  • #4
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.
 
  • #5
How were you intending to produce and receive your "Radio Waves"? What will the Science Project be saying and what is the planned audience?
 

1. What are radio waves and how are they used for two-way communication?

Radio waves are a type of electromagnetic radiation that can travel through the air. They are used for two-way communication by transmitting and receiving signals between two devices, such as a radio transmitter and receiver, or a cell phone tower and a cell phone.

2. How do radio waves travel and how far can they reach?

Radio waves travel through the air in a straight line, but can also be reflected or diffracted by objects. The distance they can reach depends on various factors such as the power of the transmitter, the frequency of the wave, and any obstacles in the way.

3. What types of devices use radio waves for two-way communication?

A wide range of devices use radio waves for two-way communication, including cell phones, walkie-talkies, CB radios, police and fire radios, and satellite communication systems.

4. How do radio waves differ from other types of electromagnetic radiation?

Radio waves have longer wavelengths and lower frequencies compared to other types of electromagnetic radiation such as visible light or X-rays. They are also able to travel longer distances and can pass through some objects that block other types of radiation.

5. Are there any potential health risks associated with using radio waves for two-way communication?

The use of radio waves for communication has been extensively studied and is considered safe by regulatory bodies. However, devices that emit high levels of radio waves, such as cell phones, should be used with caution and according to manufacturer guidelines to minimize potential health risks.

Similar threads

Replies
17
Views
2K
Replies
4
Views
2K
  • Other Physics Topics
2
Replies
39
Views
3K
  • Optics
Replies
4
Views
4K
  • Introductory Physics Homework Help
Replies
11
Views
991
Replies
12
Views
9K
  • Optics
Replies
4
Views
2K
  • Sci-Fi Writing and World Building
Replies
6
Views
667
Replies
24
Views
1K
Replies
1
Views
784
Back
Top