67BTTracer Protocol Analyzer User’s ManualCATC Version 1.0Recording ModeTo record Bluetooth™ traffic, the BTTracer analyzer needs to synchronizeto the piconet under observation. BTTracer does not participate in thepiconet and behaves as a passive listener. It needs, however, tocommunicate briefly with the devices in the piconet to learn the Masterclock and frequency hopping sequence.To synchronize to the piconet under observation, BTTracer can be set up indifferent recording modes: Inquiry Recording and Piconet Recording. Theoption you select affects the types of settings that display in the window.Inquiry RecordingSelecting the "Inquiry Redcording" button causes the Modes window todisplay the options shown in the previous screenshot.The "Inquiry Recording" option presents two choices for recordingInquiries: "General (Unlimited)" and "Dedicated (Limited)."General (Unlimited)"General" means "General Inquiry" and is used to search for ALLBluetooth™ devices that are within range, for the amount of time specifiedin the Inquiry Timeout field. Completion of the inquiry process is indicatedby illumination of the "trigger" light on the front of the analyzer. Allresponding packets will be displayed when data upload from the analyzercompletes.Dedicated (Limited)"Dedicated" means a specific class or group of Bluetooth™ devices(designated by the DIAC field of the Recording Options dialog). Selecting"Dedicated" causes BTTracer to search for all devices from a specific classor group that are within range, for the amount of time specified in theInquiry Timeout field. Completion of the inquiry process is indicated byillumination of the "trigger" light on the front of the analyzer. Allresponding packets will be displayed when stop is selected.
