User guide

130 Chapter 10: Device Detection
AirMagnet Spectrum XT User Guide
Figure 10-10: Interference Source - Narrowband Jammer
Impact on WiFi on WiFi Networks
WiFi Jammers are designed to protect important working area and avoid leakage of sensitive
data by blocking WiFi networks. Since it works in the 2.4 GHz frequency band and channels,
this type of device can be a good “defensive” tools against data leakage over wireless
network, but can also be a “double-edged sword”. Anyone could use it to disrupt the
operation of a wireless network. Because of its compact design, it can be hidden in a pocket or
briefcase or elsewhere and can be carried around and deployed at any location of a network
without being discovered.
Recommended Course of Actions
Since RF Jammers operate in the same 2.4-GHz frequency band as 802.11b/g networks do, the
following actions are recommended in order to minimize or eliminate their interference to
802.11b/g WLANs:
• Monitor your WLAN on a regular basis to make sure that no RF Jamter is causing
interference to your WLAN.
• Conduct regular WLAN site RF surveys to determine the proper location and use of
RF Jammers, if they are necessary.