FEATURES
GNSS Technology
136 hardware channels for simultaneous tracking of all visible satellite signals

Supported signals:

GPS: L1, L2C / L2P, L5
GLONASS: L1, L2
BeiDou: B1, B2, B3
Highly reliable carrier tracking technology, greatly improving the carrier accuracy, to provide users with high-quality original data.

Formats
RTCM v3.0 and 3.2 (MSM included)

CMR2.0 and CMR+ (CMR+ input only)

NMEA 0183, v2.3, v4.0 (output only)

Connectivity
2 LVTTL

1 RS232 (up to 921,600 bps)

Full speed USB (device)

xPPS output (max. 20 Hz)
For detail, visit: Gnssmart