Delta X 100/12 User Manual
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Contents
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Delta X. User Manual20 Downlinks: Used by base stations for sending data to the mobile devices Shared frequency: The band is used by both sides of communication simultaneously. Thistechnology is used by some 4G/LTE bands, Wi-Fi, Bluetooth, ZigBee and DECT.The "Threshold" determines the sensitivity for the band. When it is exceeded by a signal, the bandbecomes "dangerous" and produces an alarm. The threshold allows the operator to eliminate anyinterference from neighboring mobile phones, Wi-Fi access points and wireless phones which cannot beswitched off during the detection procedure.Since the task of counter surveillance sweeping is detecting local signals, the thresholds for mobiledevices (uplinks and shared) must be lower, while base stations (downlinks), should be rejected with thehelp of higher values. The thresholds can be adjusted automatically or manually.The "High Priority" parameter should be set for the uplink bands of the standards which have shorttransmission time (timeslots). These are GSM, 3G, 4G, DECT and Wi-Fi. When fetching the spectrumtrace, the Delta X system measures the priority bands longer in order to capture the short bursts.The "Tracker Detection" parameter should be set for the uplinks of the mobile networks so they arescanned in the Car Tracker Detector mode.If the "Auto-Setup" is successful, the system is ready for detection. In this case, you can skip thefollowing sections describing the Bands in details.Import and ExportIf the "Auto-Setup" cannot find the data file for the selected country, the Bands table can be filledmanually using the "Import/Export" button. The necessary bands should be imported from the externaldata files. The program has the following view when the import-export is activated:Content ofthe BandstableImport and exportof recordsOpen andcreate fileRelevantcountries Content ofthe externaldata fileDelete record inthe external file |
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