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2.4 GHz Vs 5 GHz WiFi: What is the difference?

2.4 GHz vs 5 GHz

Intro

Hello everyone! Have you ever purchased a new Wireless Video Transmission System and noticed that the Wireless Video Transmission System has both 2.4GHz and 5 GHz frequency bands? Or maybe your existing Wireless Video Transmitter/Receiver has both of them. And did you ever wonder why some transmitters/receivers have these dual bands?

Frequency bands

Now a frequency band is how wireless data is transmitted between devices. These bands are radio waves that carry the data and these bands are either 2.4GHz or 5GHz. Now, a lot of Wireless Video Transmission Systems will only transmit one of these bands, which would be the 2.4 band and that’s because it’s the most common frequency and these are called single band routers. But a lot of newer Wireless Video Transmission Systems will transmit both the 2.4 and 5 GHz bands. And these are called Accsoon Dual-Band Transmissions.

The 2.4 GHz band

Now, the 2.4 band works pretty well. It’s the standard band, but the problem is that it’s not just a standard band that’s used in Wireless Video Transmission Systems. It’s also the standard band that’s used in a lot of other devices things like microwave ovens, cordless phones, Bluetooth devices, Camera Monitors, and wireless cameras all use the 2.4 GHz band and this became a problem because the fact that so many other devices use the 2.4 GHz band, the signal became overcrowded and was causing a lot of interference with Wi-Fi signals. And when this happens, it slows down the Wi-Fi network speed and sometimes could cause you to lose connection to the Wireless Video Transmission System.

The 5 GHz band

So that is why the 5 GHz band was added. The 5 GHz band is a newer band, and so it’s not as commonly used as the 2.4. So it’s used by fewer devices. And because it’s used by fewer devices, the 5 GHz is not as crowded. So there is no interference or minimal interference. So using the 5 GHz would relieve the problem related to slow network speeds and connection drops that would be caused by interference from other devices.

Wireless channels

Another reason why the 2.4 is more vulnerable to interference is because of the difference in wireless channels. Now, if you’re not familiar with what a wireless channel is, a wireless channel is just a way to fine-tune and alter a frequency. Sometimes you might need to change to a different channel. If you are experiencing interference from different wireless devices, and changing to a different channel will give you that ability. The 2.4GHz band has 14 channels to choose from, but of these 14 channels, only three are non-overlapping. So basically you have three solid channels to choose from. But the 5GHz has more channels, it has 60 channels.

2.4 GHz (802.11b/g/n/ax/be)

ChannelFrequency Range (MHz)Center Frequency (MHz)Availability
12401 – 24232412Global
22406 – 24282417Global
32411 – 24332422Global
42416 – 24382427Global
52421 – 24432432Global
62426 – 24482437Global
72431 – 24532442Global
82436 – 24582447Global
92441 – 24632452Global
102446 – 24682457Global
112451 – 24732462Global
122456 – 24782467Africa, Asia & Europe
132461 – 24832472Africa, Asia & Europe
142473 – 24842484Japan

5 GHz (802.11a/h/n/ac/ax/be)

ChannelFrequency Range (MHz)Center Frequency (MHz)US FCC U-NII band(s)
325150–51705160U-NII-1
365170–51905180U-NII-1
405190–52105200U-NII-1
445210–52305220U-NII-1
485230–52505240U-NII-1
525250–52705260U-NII-2A
565270–52905280U-NII-2A
605290–53105300U-NII-2A
645310–53305320U-NII-2A
685330–53505340U-NII-2A
725350–53705360U-NII-2B
765370–53905380U-NII-2B
805390–54105400U-NII-2B
845410–54305420U-NII-2B
885430–54505440U-NII-2B
925450–54705460U-NII-2B
965470–54905480U-NII-2C
1005490–55105500U-NII-2C
1045510–55305520U-NII-2C
1085530–55505540U-NII-2C
1125550–55705560U-NII-2C
1165570–55905580U-NII-2C
1205590–56105600U-NII-2C
1245610–56305620U-NII-2C
1285630–56505640U-NII-2C
1325650–56705660U-NII-2C
1365670–56905680U-NII-2C
1405690–57105700U-NII-2C
1445710–57305720U-NII-2C/3
1495735-57555745U-NI-3
1515735-57755755U-NI1-3
1535755-57755765U-NI1-3
1555735-58155775U-NI1-3
1575775-57955785U-NIl-3
1595775-58155795U-NIl-3
1615795-58155805U-NIl-3
1655815-58355825U-NI-3
1834910-49204915N/A
1844910-49304920N/A
1854920-49304925N/A
1874930-49404935N/A
1884930-49504940N/A
1894940-49504945N/A
1924950-49704960N/A
1964970-49904980N/A

Speed and Range

Some other differences between a 2.4 and 5 GHz band are the speed and the range that they cover. The 2.4GHz band transmits data at a slower speed than the 5 GHz, but it does have a longer range than the 5GHz. The 5GHz band transmits data at a faster speed than a 2.4, but it has a shorter range. The 5GHz has a shorter range because it has a higher frequency and higher frequencies have a harder time penetrating solid objects, such as floors and walls in a building.

Conclusion

2.4GHz

Advantages

• Farther range.
• Can penetrate solid objects better.

Disadvantages

• Vulnerable to interference
• Slower speed

5GHz

Advantages

• Higher transfer speed.
• Less vulnerable to interference

Disadvantages

• Shorter range.
• Harder time penetrating solid objects.

So the question is, which band do you want to use? And that really depends on your situation. They both have their advantages and disadvantages.

The advantage of a 2.4GHz is that it has a farther range, and can penetrate solid objects better. However, its disadvantage is that it’s more vulnerable to interference because so many other devices use the same band, and it’s also slower than the 5GHz.

And the advantage of the 5GHz is that it has a higher transfer speed, and it’s less vulnerable to interference. But at the same time, it does have a shorter range and it has a harder time penetrating through solid objects.

Final Thoughts

I recommend the Dual-Band Wireless Video Transmission System, Accsoon CineView 2 SDI if you want to purchase dual-band wireless video transmission. Thank you for reading.

Darren

Filmmaking tips & tricks, camera gear reviews, cinematography breakdowns, and other training-based content to help you level up your filmmaking.

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