Delta X. User Manual40Press "Update" to start the process. The progress bar will show the status.Please note that the Delta X versions 100/12 and 100/4 use a slower spectrum analyzer and thereforewill perform the procedure longer than shown on the progress bar.Additional mask updates may reduce false alarms even more. Use "Add another point" to perform moremeasurements. Please note that the Update button clears the old masks, while the Add another pointadds new data to the existing ones.Below is the example of placement for the Update Mask in a modern city. The red spot is the targetzone. The circle of 50-100 m radius is the non-recommended zone. The suggested places for updatingmasks are drawn by the green spots.The results of the Update Mask are saved automatically.RF SweepThis is the main detection mode, in which the Delta X detects signals, evaluates their danger level andwarns the operator about any high danger. The signals, alarm events and spectrum traces are saved inthe log.The RF Sweep mode provides extremely high sensitivity thanks to the ability to omit the safebroadcasting and communication signals existing in the area and detect all other signals.This mode is suitable for the following tasks: Checking premises for the presence of RF bugging (sweeping procedure) Checking vehicles for the presence of GPS trackers and RF bugs Securing conference rooms during negotiationsPreparationsThe following preparations should be made before starting the RF Sweep:Target zonePlaces suitable for theUpdate Masks procedure