- The older 11g standard only uses the 2.4GHz frequency, majority of the world is on it. 2.4 GHz has fewer channel options withonly three of them non-overlapping, while 5GHz has 23 non-overlapping channels.
- A lot of other devices are also on the 2.4 GHz frequencies, the biggest offenders are microwaves and cordless phones. These devices add noise to the medium that can further decrease the speed of wireless networks.
- 2.4GHz has a longer range compared with others.
- The 2.4GHz frequency is way more crowded than 5GHz, devices on 2.4GHz suffer much more interference than the ones on 5GHz.
The 2.4 GHz wireless frequency is able to reach farther.
This is a result of the basic characteristics that waves attenuate much faster at higher frequencies.
So if you are more concerned with the coverage, you should select 2.4GHz.
The second quality is the number of devices on the frequencies. 2.4GHz suffers more interference than 5GHz.
2.4GHz frequency is the much better option as you have more channels to use to isolate yourself from other networks and there are far
fewer interference sources.