Heat signature. RF when it does transmit.
If it’s hidden in a metal frame then it’s not going to get a good GNSS fix. And if you’re doing a deep sleep you’re powering down your GNSS module so not getting a proper warm fix.
If it’s hidden in a metal frame then it’s not going to get a good GNSS fix. And if you’re doing a deep sleep you’re powering down your GNSS module so not getting a proper warm fix.
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