Advantages of HF radio waves

by luitzen
Tags: advantages, radio, waves
luitzen is offline
Aug19-13, 11:14 AM
P: 50
What is the advantage of high frequency radio waves over low frequency radio waves? E.g. Wi-Fi 2.4 GHz over FM radio ~100 MHz.
Phys.Org News Partner Physics news on
Physicists design quantum switches which can be activated by single photons
'Dressed' laser aimed at clouds may be key to inducing rain, lightning
Higher-order nonlinear optical processes observed using the SACLA X-ray free-electron laser
SteamKing is offline
Aug19-13, 11:39 AM
HW Helper
P: 5,554
Well, for one thing, the antenna doesn't have to be quite as large.

And 100 MHz is lower frequency, not low frequency. AM broadcasts between 540 and 1610 kHz in the US and there are long wave broadcasts of 153-279 kHz in Europe, Asia, and Africa.
Drakkith is offline
Aug19-13, 12:42 PM
PF Gold
Drakkith's Avatar
P: 11,047
Higher frequency signals are easier to radiate, require smaller antennas to transmit and receive, and can support higher bandwidths than lower frequency signals.

See the following article for a little bit of info on the very low frequency radio waves used to communicate with submarines:

luitzen is offline
Aug19-13, 03:15 PM
P: 50

Advantages of HF radio waves

The higher bandwidth and smaller antenna make sense and is something I already should've known.

Of course higher frequencies are damped more easily. I was thinking that orange light essentially is Wi-Fi at a 200k times larger frequency.

Register to reply

Related Discussions
FM radio waves and radio stations Electrical Engineering 3
How do Radio Waves work when used for FM or AM Radio transmission? General Physics 6
What is the difference between Sky waves and Space waves (Radio wave transmission)? Introductory Physics Homework 0
Why cant u make radio transmitter that transmit visible light instead of radio waves? Introductory Physics Homework 1
radio waves General Physics 1