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4-Cavity TXRX 350W UHF Duplexer

4-Cavity TXRX 350W UHF Duplexer

At UHF, the TX RX Vari-Notch® design is the most commonly used. Vari-Notch® provides a low-loss pseudo-bandpass characteristic that can exist very close to a deep notch. Proven low-loss and low-noise construction techniques are used such as welded cavity construction; silver-plated loops, Alballoy®-plated integrated loop plates and connectors; as well as a unique fingerstock-free high-conductivity silver-plated tuning probe. Our cavities are constructed of hardened aluminum which, unlike most copper cavities, resists denting and associated detuning.



  • All high RF-current components silver-plated for highest performance
  • Vari-Notch® design provides low loss and high isolation.
  • 406-430 MHz, 3.0 MHz Minimum Freq Separation
  • 442-450 MHz, 5.0 MHz Minimum Freq Separation
  • 450-470 MHz, 5.0 MHz Minimum Freq Separation
  • Power Rating 350 W each model
  • 0.8 dB Insertion Loss  (406-430 MHz)
  • 100 dB  Isolation (406-430 MHz)
  • 0.6 dB Insertion Loss  (442-450 MHz)
  • 100 dB  Isolation (442-450 MHz)
  • 0.6 dB Insertion Loss  (450-470 MHz)
  • 100 dB  Isolation (450-470 MHz)
  • 4 Cavities in 19" 3U rack configuration
  • 4" Diameter cavities 
  • 1.3:1  VSWR
  • 50 Impedance 
  • Dimensions: 5.25” x 19” x +3”/-9” (133 x 483 x +76/-229 mm)
  • 406-430 N Type Tx-Rx and Antenna Port Connectors
  • 442-450 N Type Tx-Rx and Antenna Port Connectors 
  • 450-470 N Type Tx-Rx and Antenna Port Connectors
  • -40 to +80 °C Temperature Range
  • 14 lbs

Sales Tax is charged for the following states:  Missouri, New York, California, Illinois, and Texas

Chat with us online or give us a call us at (816)-532-8451 if you have any questions.

These duplexers have a lead of 4 weeks as they are custom built and tuned 

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    Regular price $1,610.00
    Save: $-1,610.00 Sold out

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