Trimble TDL 450 Series Data Radios Trimble Geospatial. The Trimble® TDL 450 series is comprised of the TDL 450L and TDL 450H models of advanced, high speed, wireless UHF data radios that are built to endure the stresses of daily use in harsh conditions. Designed to support all aspects of GNSS surveying, the Trimble TDL 450 series is a giant step forward in radio technology and offers flexible configuration options together with rugged reliability for surveyors that need to make the most of every day.
To assure optimal radio performance and to ensure that exposure to RF energy is within the guidelines in the above standards, observe the following operating procedures: 3 TDL 450L/TDL 450H User Guide • Do not operate a transceiver when someone is within the distance noted below of the antenna (unity gain). – 120 cm (approximately 4 ft) for the TDL 450H.
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