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Co-location Interference Protection Filters

Interferences are likely to exist when RF base stations are co-located. That may cause receiver desensitization, overload and/or intermodulation product (IMP) interference, thereby degrading their system performances and increasing dropped calls.

Co-location filters are used to prevent wideband noise and spurious signals to interfere from one system transmitter band into another system receiver band.

Some examples of applications of the co-location filters are:

  • GSM900 is co-located with 800 MHz cellular equipment
  • PCS is co-located with GSM 1800 MHz equipment
  • UMTS is co-located with PCS equipment, etc
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