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28-83E-01A, 764-869 MHz, Duplexer

  • TX RX Systems offers a wide variety of Duplexer options to suit your application, including Vari-Notch®, Bandpass, and notch type circuits
  • Vari-Notch® design provides low loss and high isolation in a compact package
  • All high RF-current components silver-plated for highest performance
  • Various models to choose from to match your application.


Specifications for duplexers of unsymmetrical construction or response are listed as follows:

  • Isolation: Noise Suppression/Carrier Suppression
  • Insertion Loss: Tx Loss/Rx Loss


Duplexer Problems and Remedies


Product Specifications 
Item No28-83E-01A
Item Name764-869 MHz, Duplexer
Frequency Range764-869 MHz
Minimum Freq Separation30 MHz
Power Rating125 W
Isolation60/90 dB
Insertion Loss0.8/0.8 dB
Number of Cavities4
Cavity Size4" Dia.
Impedance Ω50
Dimensions H x W x D5.25" x 19" x 9"
Tx-Rx Port ConnectorsN
Antenna ConnectorsN
Temperature Range-30 to +60 °C
Shipping Weight10 lbs.