Radio Modems - Systems

We offer a fine line of wireless modem products. These products represent the state-of-the-art in wireless data transmission.

Our units provide rugged and reliable operation with sophisticated features which make them versatile and easy to use for a wide variety of applications. The radios are watertight and rugged enough for the toughest environments, easily configurable in the field with an enhanced user interface. Easy-to-integrate modules are also available to system integrators seeking the best radio modems possible.

Current product line includes: Pacific Crest ADL Vantage, Pacific Crest Sentry, Pacific Crest XDL Rover 2 and 4RF APRISA XE.


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ADL Vantage


ADL Vantage is an advanced, high speed, wireless data link built to survive the rigors of GNSS/RTK surveying and precise positioning. 


Key Features:

  • Multi-function user interface – allows radio configuration and troubleshooting in the field
  • Environmentally sealed to IP67 standard
  • High Over-the-Air Link Rate 19,200 bps (both GMSK and 4FSK)
  • Supports 1Hz RTK corrections for multi-GNSS receivers
  • Configurable Transmit Power 0.1-2 W for longer battery life 4.0 W for longer range (where permitted)
  • Advanced 40 MHz Bandwidth 390-430 and 430-470 MHz models
  • Compatible with both 12.5 and 25 kHz licenses

Pacific Crest XDL Rover 2

The XDL Rover 2 is a lightweight, ruggedized UHF receiver designed for digital radio communications between 403 and 473 MHz in either 12.5 or 25 kHz channels. This sophisticated radio utilizes Pacific Crest’s latest generation XDL modem technology while remaining backward compatible with existing Pacific Crest and other products.

XDL Rover 2 is equipped with Bluetooth® wireless communication. This allows users to configure XDL Rover 2 using a Bluetooth-equipped PC or Android™ device. Serial communications is also available through the standard LEMO port. Using the latest modem technology from the leader in radio frequency data communications instantly puts your products in touch with the world’s largest installed base of GNSS precise positioning systems.