Mission-Critical Connectivity Unit


Available soon!

The SATEL MCCU-20 is a unique dual-technology RTK transceiver for receiving the GNSS RTK correction data to a moving vehicle with UHF radio based RTK or NTRIP over LTE. The RTK correction data is forwarded over RS-232 serial communication to machine control system.

Connectivity in harsh environments

The MCCU (Mission-Critical Connectivity Unit) platform is designed to resolve connectivity challenges in harsh environments. It delivers mission-critical signaling from relatively small machine control messages with constant latency to wideband and low latency camera stream.

The SATEL MCCU-20 has IP67 and IP69K classification and it withstands vibration and shock. It is based on field proven mechanics, and all the electrical connections are equipped with surge and ESD (Electrostatic Discharge) protection.

Easy integration

The machine and vehicle manufacturers and machine control system providers can integrate SATEL MCCU-20 to their offering without knowing what kind of technology is available in the operating area. The vehicle can be operated under varying connectivity environments.

Mission-critical connectivity

  • RTK correction signaling for centimeter level positioning accuracy
  • Collision avoidance signaling (CAS)
  • Machine to machine commands (V2V also V2X)
  • Secure firmware updates
  • Central control signal
  • Safety signaling
  • Mission-critical telematics

Type approvals for main markets are to be carried out.


In the EU the product falls under the scope of the radio equipment directive
2014/53/EU (RED). In the USA, the product fulfills relevant FCC parts.

Free fall IEC 60068-2-32, Procedure 1
Operating shock ISO 16750-3 (2012), Chapter 4.3
Random vibration ISO 16750-3 (2012), chapter
Ingress Protection ISO 20653 (2013), IP69K (150 bar)
Safety IEC 62368-1
Conducted RF ETSI EN 301 489-1 v.2.2.1
Radiated RF EN 55032
ESD IEC 61000-3-2 (2008-12)
Level 4: 8 kV contact, 15 kV air discharge
RF immunity IEC 61000-4-3 (2010-04)
Level 4: 30 V/m
Surge IEC 61000-4-5 (2005-11)
Level 4: 4.0 kV, 2 kA, impedance 2 ohm, 8/20 us
Polarity Reverse polarity protection -40 V

Integrated global roaming eSIM and traditional SIM card slot for local operator’s subscription.

Two communication modules LTE: (NTRIP application, NMEA position upstream)
UHF: 410 …475 / 902 … 928 MHz radio (RTK Receiver)
Serial interface RS-232 (TD, RD lines)
Serial data speed 4800 – 460800 bps
Operating voltage +9 … +30 VDC (-15% / +20% )
Operating temperature –30°C to +70°C (operational)
Interface connector Deutsch DT04-6P-CL09
Antenna connector 50 Ohm, 2 x SMA (LTE) / 1 x TNC (UHF)
Power consumption Typ. 2.4 W (NTRIP receive) / Typ. <1 W (RTK receive)
Housing Shielded / bare PCB inside a metal housing
Size / Weight 174 mm x 95 mm x 47 mm / 520 g
IP classification IP67 / IP69K
Cellular bands LTE-FDD: B1/B2/B3/B4/B5/B7/B8/B12/B13/B18/
LTE-TDD: B38/B39/B40/B41
WCDMA: B1/B2/B4/B5/B6/B8/B19
GSM: B2/B3/B5/B8