It's one of the modems that is compatible and is proven working excellently well with IPSTAR ground and satellite technology.
If it's used with a 4-watt BUC, then it would allow a return speed (upload) of 24 Mbps and a forward speed (download) of 62 Mbps with a bandwidth occupancy of 12.5 MHz and 31.86 MHz for the return and forward links, respectively.
Romantis modem is a Single Channel Per Carrier (SCPC) type of modem. So, two modems (pairs) are needed in the communication link. One pair has to be installed at the remote site and the other one will be installed at the IPSTAR gateway.