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General information
The DL-252-FM is a 2,5 KW Termination Load; it is allocated in a custom enclosure specifically designed to be mounted into the base of a standard EIA 19” rack. The working frequency covers the FM range 88-108 MHz with return loss >30dB. The load is realized by combining thick film resistors on BeO substrate in order to transfer the heat exclusively by conduction to a suitable heat sink which is than cooled down by forced air. The DL-252-FM includes all the mechanical and electronics components in order to achieve the best efficiency and to provide the following functionalities:

  • Absorption of the applied RF Power
  • System cooling by forced air
  • Interlock protection for over temperature and over drive


Technical Specification  

  • Frequency Range:  88-108 MHz
  • RF Input:  EIA 7/16”
  • Impedance:  50 Ohm
  • VSWR:  better than 1:1.03
  • Max Input Power:  2.5 kW CW 
  • Supply Voltages:  115-230 VAC (mains)
  • Cooling:  forced air
  • Minimum required air flow:  500 m3/h at the sea level
  • Size:  304W x 282 H x 254 mm
  • Weight:  10 Kg.
  • Temperature range:  0 to +45°C
  • Protection:  Overtemperature/Overdrive Interlock
  • Telemetry:  Power level/Temperature/Alarms

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