Can I transmit from indoors?

In most cases you cannot transmit from indoors. The satellite signal does not go through solid objects like walls. However, if you have a clear view of the satellite and the glass in a window is uncoated, it may be possible for the SatPaq to transmit from indoors.

The better solution is to use SatPaq Detached mode to communicate over Bluetooth from inside. In this mode, you position the SatPaq outside on the provided stand or other support and transmit messages from your cell phone while indoors.