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SimulANT Loses Sync with multiple Displays

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Total Posts: 1

Joined 2009-03-05

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I am running a Trainer prototype with 3 Active ANT Profiles. Bicycle Speed and Cadence, Bike Power, and FE-C. I get the same results running the Master profiles on my Nordic module and on the Nordic Demo board. These are running with the Profile recommended timing, and I can see the occasional dropouts due to collision when I run all three simultaneous SimulANT display simulators, using a single Suunto ANT stick, on Windows 10. In addition to the colllision dropuots, I also see the display simulators lose sync repeatedly on the BPWR and FEC profiles. This occurs at times when there should be no channel collision. Attached is a timed log from the 3 SimulANT logs, showing the relative timing and dropouts. When I run Trainer Road, with all 3 profiles, I see the dropouts also. Is this a basic system issue trying to use a single ANT stick receiver, or shouild I be looking for a different failure cause?      

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Total Posts: 120

Joined 2013-05-07

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While some packet loss due to collisions is expected when running 3 slave channels on the same stick, the pattern shown in your file is not consistent with my experience of channel collisions. Is it possible the issue is with the Trainer prototype? How often do these drop outs occur? Do all the channels drop out at the same time?

BK.