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Cellular Network Time via ATDT

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I am using an XBEE3 CAT-M1 device. Currently I do NTP requests to get time. In my current firmware I sync time to my local flywheel at boot and then once every 24 hours.
I am considering using the result of ATDT.

1.) I saw in the manual that this time is refreshed approx. once per hour. Is it always refreshed when the modem connects? i.e. going from a state of no signal & no connection to a state of being connected to the network.

2.) What are the circumstances when the result of DT will be invalid? I noticed that it is not available after boot until the device connects. Are there other circumstances the result would not be valid?
asked Jul 16 in XBee3 Cellular by ehughes New to the Community (3 points)

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1 Answer

+1 vote
Yes, the modem refreshes whenever it makes a new association to the network.

We have not tested the other situations when the result will be invalid. I know the clock continues to function even after putting the unit into Airplane Mode, although drift may occur.
answered Jul 16 by DystopianFerret Veteran of the Digi Community (365 points)
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