I was experimenting with a low speed Smart Beacon Profile on a T2 (with 
integrated 5W VHF transceiver) and encountered an unexpectedly high beaconing 
rate when parked.  My settings were as follows:

Slow Speed: 0.0 MPH   TX rate:  7193 sec
High Speed:   4 MPH   TX rate:    61 sec
Turn angle:  15 deg   Max TX rate: 3 sec

The shallow turn angle and fast TX rate was set to see if I could reliably 
double beacon on street corners.

The issue arose when parked:  Initially, as anticipated, the T2 did not beacon, 
but after 10 minutes sitting, it began beaconing every few seconds until I shut 
it off.  After thinking about what could cause this it occurred to me that 
beaconing may be triggered when the uncertainty in sequential GPS readings 
causes the T2 turning algorithm to be satisfied.  However, since I don't know 
the details of the turning algorithm I can only guess how to avoid this 
boundary condition.

Can anyone shed some light on this?

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