Question

How do signals from a router differ from AM or FM radio?

An AM or FM radio signal can be picked up by hundreds of radios in a home without affecting signal strength for each radio.. But, as per my local ISP's TV commercial, if a home has a router and then multiple devices (PC, smartphones, tablets, etc. etc.) receiving signal from the router, somehow data for each device uses up the bandwith. My question... how is this different from a radio signal (unlimited) while wireless devices seem to "suck up" and slow down wireless data coming from a router? .

Discussion is locked

Follow
Reply to: How do signals from a router differ from AM or FM radio?
PLEASE NOTE: Do not post advertisements, offensive materials, profanity, or personal attacks. Please remember to be considerate of other members. If you are new to the CNET Forums, please read our CNET Forums FAQ. All submitted content is subject to our Terms of Use.
Reporting: How do signals from a router differ from AM or FM radio?
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.
Comments
- Collapse -
Answer
Re: wireless data

That's basic physics.

The AM and FM radio is tuned to a frequency that's present and the everywhere, and can be picked up by as many devices (1000's and 1000's across the country).

The frequency of the router is everywhere (in house) also, but the contents at any moment are meant for only one device. And when that's being sent, all other devices don't receive anything (or better said: they do receive it, but they skip it because they are not the receiver that is addressed).

Signal strength is something else than the number of bits the signal contains. The radios all use the same waves at the same moment), the WiFi device has to wait till for bits. And the more devices are using the router, the smaller part of the bits it sent are for you.

- Collapse -
Answer
They are just different frequencies.

Wi-Fi is, in fact, a set of radio frequencies. The particular bandwidth wi-fi devices uses has been purchased by the Wi-Fi alliance specifically for those devices. In theory, there is no difference.

CNET Forums

Forum Info