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To select the best frequency, in mikrotik, should I use the scan function?
Yes, using the scan function on a MikroTik device is a great way to select the best frequency for your wireless network.
This tool allows you to identify the least saturated frequencies and channels that have less interference from other nearby Wi-Fi networks, which is essential for optimizing the performance of your wireless network.
How to use the scan function in MikroTik to select the best frequency:
- Access your MikroTik device using WinBox, WebFig, or SSH, depending on your personal preference.
- Go to the wireless interface:
- In WinBox: Click “Wireless” in the left menu.
- On the command line: You can access it using the command
/interface wireless.
- Select the wireless interface you want to configure and click “Scan”. On the command line, the command would be similar to
/interface wireless scan [interface-name] duration=10s, replacing[interface-name]with the name of your wireless interface. - View the scan results: The scan tool will display all detected networks, their respective frequencies (or channels) and signal strength (RSSI). Look for channels that have the fewest networks operating or that have the lowest signal strength from other networks, indicating less interference.
- Choose a frequency or channel: Based on the scan results, select a frequency (or channel) that is less saturated. If you are using a 2.4 GHz band, channels 1, 6, and 11 are generally recommended in many countries because they do not overlap. However, the scan may reveal that other channels are less used in your specific environment. For the 5 GHz band, you will have more channel options, and the scan will help you identify which is the best option.
- Configure your network to use the selected frequency: Once you have decided on the best frequency or channel based on the scan results, configure your wireless interface to use that frequency.
Additional considerations
- Interference and performance: In addition to Wi-Fi networks, consider potential non-Wi-Fi interference sources, such as cordless phones, microwave ovens, and Bluetooth devices. Although scanning will not necessarily detect these sources of interference, it is important to consider them when choosing your channel.
- Local regulations: Make sure the frequency you choose is allowed by telecommunications regulations in your country. Some channels, especially in the 5 GHz band, may have specific restrictions or require the use of DFS (Dynamic Frequency Selection).
- Regular updates: Performing scans periodically can be helpful, especially if the wireless environment changes frequently in your area. This ensures that your network is always optimized for the best possible performance.
Using the scan feature will significantly help you improve the quality of your wireless connection by selecting the least congested channel, but remember that adjusting your network settings may require additional testing to find the optimal settings.
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2 comments on “To select the best frequency, in mikrotik, should I use the scan function?”
Good afternoon, could you help us?
Knowing which frequency is with the least noise and least use will allow you to define which frequency could be used at that moment. In the aps
The scanning tool gives us information about the APs that are in the place, showing the frequencies, the signal level, the noise floor and signal to noise (signal/noise ratio), among all this information, the frequency information What this tool shows are the frequencies that the APs in the place are using the most (the important thing is to look for a frequency that is being used little or that no one uses, but we must consider that the tool does not show the other devices that are not APs that frequencies are using).
A better option would be to use the Wireless snooper tool or the spectral history tool. The wireless snooper tool also does a scan, showing all devices, both APs and stations, the frequencies they are using (the important thing is to look for a frequency that is being used little or that no one uses). The spectral history tool can only be used by command, where it shows, using a color map, the frequencies that the devices in the location are using. Warmer colors are the most used frequencies and cooler colors are the least used frequencies.