Wireless networks are divided into multiple independent frequency bands such as 2.4 GHz and 5 GHz. Each frequency bands is divided into several channels. Each country or region has formulated its own policies on how to use frequency bands such as the maximum transmission power and bandwidth.
The 2.4 GHz band provides the most coverage but transmits data at slower speeds. Wireless range decreases as frequency increases because higher frequencies cannot penetrate solid objects like walls and floors. However, higher frequencies allow data to be transferred faster than lower frequencies, so higher frequencies like 5GHz allow you to upload and download files faster than 2.4GHz.
Compared to 2.4GHz, 5GHz will give you more signal strength and faster speeds in a shorter range. If you are able to use 5GHz is your best choice to take advantage of higher speeds. Similarly, if you’re doing a lot of high-bandwidth activities online, such as online classes or video conferencing, it is best to use this frequency and move as close as possible to the Wireless LAN Access Point.
2.4 GHz Channel Allocations
NOTE: Marked in accordance with the frequency bands permitted by the Macao SAR Regulations for Radiocommunication Services, details of which can be found on the website of the Macao Post and Telecommunications Bureau.
5 GHz Channel Allocations
NOTE: This Frequency Allocation Chart is for reference only. Details can be found at Ministry of Industry and Information Technology of the People’s Republic of China website, Macao Post and Telecommunications Bureau website and Hong Kong SAR OFCA website.
Use Macau 5 GHz Channel Allocations as example, the permitted wireless frequency bands are relatively wide which include 5150 – 5350 MHz frequencies (Channel 36 to 64), 5470 – 5725 MHz frequencies (Channel 100 to 144), 5725 – 5850 MHz frequencies (Channel 149 to 165), and so on.
For China, the currently available frequency bands are 5150 – 5350 MHz frequencies (Channel 36 to 64) and 5725 – 5850 MHz (Channel 149 to 165).
Some of the devices that manufactured by China may not support 5150-5350 MHz frequencies due to production date, operations system or other hardware factors. And probably cause Wi-Fi signal cannot be searched, connection disconnected continuously, or continually fighting with slow network speeds, etc.
- Read product specification and confirm whether the Wi-Fi channel compatibility which is within Macau 2.4 GHz and 5 GHz Wi-Fi channel allocation range before purchasing devices.
- For the devices that manufactured by China, please try to update the latest operating system that available on official website.
- Some China brand such as Xiaomi, Huawei, OPPO, or Realme provide region setting. Try to change region setting to Macau SAR, and may be able to receive 5470 – 5725 MHz frequencies (Channel 100 to 144) Wi-Fi signal. Changing region setting will not affect the normal operation of the device.
