Mission-Critical Connectivity Unit


Available soon!

The SATEL MCCU-20 LTE / UHF 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 LTE / UHF 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 LTE / UHF 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 and Canada, the relevant FCC / ISED parts are fulfilled.

Free fall ISO 16750-3:2012
IEC 60068-2-31:2008
Mechanical shock (half sine) ISO 16750-3:2012
IEC 60068-2-27:2008
Vibration (random) ISO 16750-3:2012
IEC 60068-2-64:2008
Ingress Protection IPX9K IEC 20653:2013
IP67 IEC 60529:2013
Safety IEC 62368-1:2018 Edition 3.0
EMC EN 301 489-1 v.2.2.3, -3 v.2.1.1,
EN 301 489-52 v1.2.1, -19 v2.1.1
EN 55035:2017 + A11:2020
Radiated emissions EN 55032:2015 + A11:2020
Electrostatic discharge IEC 61000-4-2
Level 4: 4 kV contact, 8 kV air discharge
Radiated filed immunity IEC 61000-4-3 (2010-04)
IEC 61000-4-3:2020
Level 20 V/m
Polarity Reverse polarity protection
Temperature and humidity (cyclic) ISO 16750-4:2006
IEC 60068-2-38:2009

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 GSM: B2/B3/B5/B8
WCDMA: B1/B2/B4/B5/B6/B8/B19
LTE-FDD: B1/B2/B3/B4/B5/B7/B8/B12/B13/B18/B19/B20/B26/B28
LTE-TDD: B38/B39/B40/B41