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General information
The DL-4x152-FM is a four ports 1,5kW FM Termination Load; it is allocated in a custom enclosure specifically designed to be mounted into the back of a standard EIA 19” rack. The working frequency covers the FM range 88-108 Mhz with return loss >30dB. The four loads are 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-4x152-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:  4xN type connectors
  • Impedance:  50 Ohm
  • VSWR:  better than 1:1.03
  • Max Input Power:  4x1.5 kW CW 
  • Supply Voltages: 115-230 VAC (mains)
  • Cooling:  forced air
  • Minimum required air flow:  500 m3/h at the sea level
  • Size:  483W x 170H x 190D mm
  • Weight:  15 Kg.
  • Temperature range:  0 to +45°C
  • Protection:  Overtemperature/Overdrive Interlocks
  • Telemetry: Power level/Temperature/Alarms 

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