Non-Wi-Fi Interferers; Non-Wi-Fi Interferer Types - Aruba IAP-335 User Manual

Table 71: Device Summary and Channel Information
Column
Duty-cycle
Add-time
Update-time

Non-Wi-Fi Interferers

The following table describes each type of non-Wi-Fi interferer detected by the Spectrum Monitor feature:
Table 72: Non-Wi-Fi Interferer Types
Non Wi-Fi
Interferer
Bluetooth
Fixed
Frequency
(Audio)
Fixed
Frequency
(Cordless
Phones)
Fixed
Frequency
(Video)
Fixed
Frequency
(Other)
Frequency
Hopper
(Cordless Base)
Frequency
Hopper
(Cordless
Network)
Aruba Instant 6.5.0.0-4.3.0.0 | User Guide
Description
Device duty cycle. This value represents the percent of time the device
broadcasts a signal.
Time at which the device was first detected.
Time at which the device's status was updated.
Description
Any device that uses the Bluetooth protocol to communicate in the 2.4 GHz band is
classified as a Bluetooth device. Bluetooth uses a frequency hopping protocol.
Some audio devices such as wireless speakers and microphones also use fixed frequency
to continuously transmit audio. These devices are classified as Fixed Frequency (Audio).
Some cordless phones use a fixed frequency to transmit data (much like the fixed
frequency video devices). These devices are classified as Fixed Frequency (Cordless
Phones).
Video transmitters that continuously transmit video on a single frequency are classified as
Fixed Frequency (Video). These devices typically have close to a 100% duty cycle. These
types of devices may be used for video surveillance, TV or other video distribution, and
similar applications.
All other fixed frequency devices that do not fall into any of the above categories are
classified as Fixed Frequency (Other).
Note that the RF signatures of the fixed frequency audio, video, and cordless phone
devices are very similar and that some of these devices may be occasionally classified as
Fixed Frequency (Other).
Frequency hopping cordless phone base units transmit periodic beacon-like frames at all
times. When the handsets are not transmitting (that is, when there are no active phone
calls), the cordless base is classified as Frequency Hopper (Cordless Base).
When there is an active phone call and one or more handsets are part of the phone
conversation, the device is classified as Frequency Hopper (Cordless Network). Cordless
phones may operate in 2.4 GHz or 5 GHz bands. Some phones use both 2.4 GHz and 5
GHz bands (for example, 5 GHz for Base-to-handset and 2.4 GHz for Handset-to-base).
These phones may be classified as unique Frequency Hopper devices on both bands.
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