Lennox Hearth G8 - Manual (Page 137)

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TracVision G8 Owner’s Manual - Guide to Technical Information
Report Last Satellite Tracked/Update Value
Function: reports the last satellite tracked or updates the last
tracked satellite to the value input if it is different
from the current value
Command: LASTSAT
LASTSAT,X
Response: Last =
Where: X = A (updates to Satellite A)
or
X = B (updates to Satellite B)