910-0001-00-MAN-R06  FLIR Proprietary Information  Page 55 of 81  
Information contained in this document pertains to a Canadian origin product that is controlled as "dual use" by the Canadian 
government.  However, when in the United States or possessed by a US person, it may be considered a defense article from the US Government's 
perspective.  US government authorization may be required for re-transfer to a foreign person.   If you have any questions, please contact FLIR's 
Global Trade Compliance group at exportquestions@flir.com . 
 
2.2.7  Intruders and Targets 
2.2.7.1  Intruder and Target Symbols 
An Intruder is defined as a radar track detected inside an intrusion zone. A Target is defined as a radar 
track detected inside a contact zone. 
 
The display of intruders and targets is controlled by the View Menu -> Intruders and Targets option. 
 
Intruders and targets are displayed as shown in Figure 41. The display of the intruder / target 
identification number is controlled by the View Menu -> Identification Number option. 
 
 
Figure 41 - Description of Intruder and Target Symbols 
 
When an intruder or target is no longer detected, the point in the icon center disappears (e.g. target:
). After a few seconds, the symbol changes to   . This symbol is then displayed for a configurable 
period of time before disappearing from the PPI. This period is set using the configuration parameters 
"Target_save_tm" and "Intruder_save_tm". 
 
2.2.7.2  Intruder and Target Tracks 
An Intruder or Target Track is the trace of the intruder’s or target's position over a period of time in 
the past. The period during which the track history is recorded is set by the configuration parameter 
"Target_hist_tm" and, the distance interval at which the track position is recorded is configured by the 
configuration parameter "target_hist_int". 
 
The display of tracks is controlled by the View Menu Tracks command.