The MSC-RF-ADAPT is a multi-global navigation satellite system receiver capable of receiving GPS, GLONASS and other GNSS constellation signals using a Trimble Bullet 360 or other commercially-available GNSS antenna. The MSC-RF-ADAPT connects to Evertz' master clock products such as 5700MSC-IP and 5601MSC with a RS-422 serial link, and to the GNSS antenna using 50Ω coaxial cable. For added flexibility, several MSC-RF-ADAPT multi-GNSS receivers may be connected to an RF distribution amplifier (such as the Evertz 7703DA4/8/16/32) to share one antenna. RF connections may be extended with in-line amplifiers (such as the Evertz 7703PA and 7703PA-2) and fiber extenders (such as the Evertz 2408LT and 7707LRA).