Plasma Cloud refers to Radio Frequency Interference made of non-WiFi signals such as Bluetooth, microwaves, radar signals, and other interfering frequencies that can impact network performance, as ambient noise.
Impact of Ambient Noise
Ambient noise can affect the quality and stability of your wireless network. Identifying and mitigating these interference sources is essential for ensuring optimal connectivity. Plasma Cloud Access Points can quickly scan their surrounding RF environment for ambient noise, with the results displayed directly in the RF Topology popup.
This article explains how to access and read ambient noise data. For a general overview about Radio Frequency topology, please refer to this article. Detailed information about all other fields and functions in the RF popup can be found in here.
How to Access Ambient Noise Data
To view ambient noise data, follow these steps:
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- Log into the Plasma Cloud console;
- Select the Organisation and Network of interest from the top right menu;
- Navigate to Topology > Radio Frequency in the main menu on the left;
- Click on a Device Map Marker to open the RF popup.
- In the RF popup, use the Filter drop-down menu and select Ambient Noise.
Interpreting the Data
The RF popup graph provides a detailed visualization of ambient noise across WiFi channels:
- Horizontal Axis: Lists all available WiFi channels for the selected band.
- Vertical Axis: Represents measured signal strength in dBm, ranging from -100 dBm (weakest) to -20 dBm (strongest).
The yellow graph indicates ambient noise levels for each channel, helping you identify interference sources.
- Signal strength is classified as:
- Strong: Above -50 dBm
- Medium: Between -50 dBm and -70 dBm
- Weak: Below -70 dBm
Hover over the graph to see the exact signal strength for any specific WiFi channel.
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Ambient noise detection is supported on the following Plasma Cloud Access Points with the corresponding firmware versions:
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