Modem
The Modem will be an PLS8-E(EU Versions) ([1],Features for both Versions, Datasheet) or PLS8-US(US Versions). It provides GSM, LTE and GPS. SMS and Voice is supported and tested, however it will fallback to 2G for Voice on most Networks. There's an CPU-GPIO controlled FET switch to disconnect the whole Modem from Power so you don't have to rely on the Closed-Source Modem Firmware. Also there's an Current Sensor to detect if the Modem is doing unwanted Things. [2]
Antenna
The Antenova A10340 as seen here [3]is listed with "Antennas Calvus SMD GSM850/ 900/1800/1900/WCDMA"
Carrier Compatibility
Main article: Carrier Compatibility
US
Look for a GSM network, like Tmobile or AT&T. (Verizon and Sprint use CDMA networks, which are incompatible with the Pyra modem.)
US MVNOs
There are smaller companies which use the Tmobile and AT&T networks (i.e. Virtual operators), but you'll have to look through for the GSM carriers with a BYOD policy.
Some that may allow use of a Pyra (none yet confirmed) include:
- Cricket Wireless
- Ting
- MetroPCS
- Simple Mobile
Australia
Australia requires the European Pyra Modem. See this Whirlpool Forum post for more details.
Europe
Pretty much everybody???