Teledyne LeCroy BTTracer_Trainer - BTTracer Users Manual - Manual (Page 99)

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BTTracer Protocol Analyzer User’s Manual CATC SW Version 2.20
Sync Window
The Sync Window slide bar controls the amount of time that BTTracer
should wait between receiving an Inquiry Response (which will cause the
Sync LED to blink) and detecting Master-Slave piconet traffic (which will
cause the Sync LED to turn solid.)
A "Narrow" setting means that the wait time will be minimal, a "Wide"
setting means it will be "maximal." The default is "Narrow" and this is
suitable for most recordings. However, if significant drift occurs between
BTTracer’s clock and that of the Master, BTTracer may not be able to sync
properly to the piconet. Under these conditions, you should move the slide
bar towards the "Wide" Setting. The slide bar has five discrete settings.
After sync is established, BTTracer will remain in sync as long as there is
piconet traffic.
6.5 Recording Options - Inquiry
The Inquiry page configures how BTTracer records Inquiry traffic. Two
main options are presented in the Sync Method drop-down menu: General
(Unlimited) Inquiry and Dedicated (Limited) Inquiry. These options tell
BTTracer what kind of Inquiry traffic it should expect to record.
This page includes settings only for Inquiry recording and BT
Neighborhood.
General (Unlimited)
"General" means "General Inquiry" and is used to search for ALL Bluetooth
devices that are within range, for the amount of time specified in the Inquiry
Timeout field. Completion of the inquiry process is indicated by
illumination of the "trigger" light on the front of the analyzer. All
responding packets will be displayed when data upload from the analyzer
completes.
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 class
or group that are within range, for the amount of time specified in the
Inquiry Timeout field. Completion of the inquiry process is indicated by
illumination of the "trigger" light on the front of the analyzer. All
responding packets will be displayed when stop is selected.