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DAB/DMB BIII L-Band Filters

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Description

Electrolink is providing filters with up to 8 cavities to meet the strict requirements of both the critical and non-critical masks.

All the filters are fully compliant with the Eureka 147 international specification achieved at DAB (170 – 240 MHz) and L-Band (1452 –1492 MHz) frequencies at powers ranging from 1Wrms to 3kWrms. All Electrolink filters are DAB band tunable and temperature compensated. The bandpass filters use light alloy and brass construction for stable high power performance.

KEY FEATURES

  • Flexible and compact
  • Temperature stabilised
  • Square cavity at high mechanical stability
  • Light alloy and brass construction
  • Retunable
  • Thermic stabilization carried out with INVAR
  • Mounted in every position
  • Natural convection cooling
  • Fine tuning
  • Silver superficial treatments and outer painting

Technical Features:

IN/OUT Impedance 50OHM
Frequency Range VHF BIII 170MHz – 240MHz
Frequency Range VHF BIII 1.452MHz – 1.492MHz
Input Power (VHF BIII) up to 3kW
Input Power (L-Band) up to 2kW
Insertion Loss Depending on models
Return Loss >23dB
Bandwidth Tunable (up to 4 adjacent channels)
Temperature Range 30ºC to +45ºC