According to FCC regulations, which frequencies are available for use by the 1.6/2.4 GHz Mobile-Satellite Service?
1610-1613.8 MHz: User-to-Satellite Link
1613.8-1626.5 MHz: User-to-Satellite Link
2483.5-2500 MHz: Satellite-to-User Link
1610-1626.5 MHz: User-to-Satellite Link
1613.8-1626.5 MHz: Satellite-to-User Link (secondary)