MTS-RF9: Radio Communication Module

for Modular Telemetry System                                    specsheet 


MTS-RF9 Features:

  • License-Free 902-928MHz Operation
  • Spread-Spectrum Frequency Hopping Technology
  • RF Signal Strength Indication
  • Loss of Signal Output
  • Point-to-Point or Point-to-Multi-Point Topologies
  • Automatic Recognition of Attached I/O Modules
  • Approvals: ETL 3098704: Class I & II, Div. 2 and Class III, Div. 1&2; UL 508; CSA-C22.2 No. 14-95 

MTS System Features:

  • Bi-directional Communication using License-free 902-928 MHz Radio Band
  • Spread-Spectrum Radio Technology Provides Reliable Communication
  • Modular Design Provides Maximum Flexibility
  • Analog and Digital I/O Modules
  • Expandable to 99 I/O Modules
  • Point-to-Point or Host-to-Multipoint Topologies
  • No Programming Required - Easy to Configure
  • Microprocessor Controlled for High Accuracy
  • Power: 24 VDC, Solar Power, and Others Available
  • Easy Field Installation with Integrated Power/Data Bus


The MTS-RF9 is a license-free radio communications module that forms the backbone of an MTS telemetry system. These modules can be configured as ‘Host’ or ‘Remote’ by a single DIP switch. Systems can be setup in a ‘Point-to-Point’ or ‘Point-to-Multi-Point’ topology. Multiple frequency hop tables allow several MTS radio systems to operate in close proximity.

Typical indoor range is 1500+ ft. Outdoor range can be extended to 12+ Miles with directional antennas. A signal strength indicator shows the amount of RF signal received. Pribusin offers a complete line of antennas and accessories for all types of installations.

The MTS-RF9 can also be used as a stand-alone Wireless RS-232/RS-485 link between PLCs etc.

Deployment and installation is as simple as plugging the needed I/O modules into the communications module and assigning unique module ID’s. The MTS-RF9 automatically discovers the I/O modules that are attached to it and does all necessary configuration. Power and communication for the modules are provided through an integral bus.

The wireless communication is via license-free (in USA and CANADA) 900MHz Spread Spectrum Radio using channel hopping technology for greater reliability. Line-of-Sight distances of up to 12 miles can be achieved with these radios in conjunction with high gain antennas.



  • RF Output: 100mW/1000mW Selectable
  • Range (Indoor): 1500+ ft., depending on obstructions
  • Range (Outdoor): 12+ mi., with YAGI Antennas
  • RF band: 902-928MHz, License-Free ISM Band
  • Receiver Sensitivity: -110dBm
  • Communcation Speed: 9600/115000 Baud, Selectable
  • Power Consumption: 2.5VA @ 1W RF Output, 1.5VA @ 100mW RF Output
  • Temperature: -40C to +70C

Other Modules

  • MTS-8DI - 8-Channel Digital Input
  • MTS-8DO - 8-Channel Digital Output
  • MTS-4AO - 4-Channel Analog Output
  • MTS-4DIO - 4-Channel Digital Input/output
  • MTS-4AI  - 4-Channel Digital Input
  • MTS-PWR - Power Distribution
  • MTS-CEL - Cellular Communications Module
  • MTS-NET - Ethernet Communications Module





Click here for a list of Antennas