R&S®HF postselectors

HF postselectors for challenging cosite situations

R&S®HF postselectors
R&S®HF postselectors, Front view
R&S®HF postselectors, Front view
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R&S®HF postselectors
R&S®HF postselectors, Front High
R&S®HF postselectors, Front High
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R&S®HF postselectors
R&S®HF postselectors, Side view
R&S®HF postselectors, Side view
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R&S®HF postselectors
R&S®HF postselectors, Back view
R&S®HF postselectors, Back view
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Key facts

  • HF wideband capable
  • Suppression of spurious emissions
  • Maintenance-free, rugged design
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Brief description

HF postselectors are used with HF transceiver systems to suppress mutual interference from cosite transmit and receive antennas. It is mainly used in shipborne applications to meet collocation requirements when antenna space is limited.
When connected between the transceiver and the ATU, the filter effectively suppresses spurious emissions thanks to its high selectivity. 
Tuning is digital with RF relays. 
Covers the entire frequency range from 1.5 MHz to 30 MHz

  • Reduces transmitter noise
  • Reduces harmonics

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Features & benefits

Maintenance-free, rugged design

The rugged design of the Rohde & Schwarz HF postselectors allows for operation 24 hours a day.

Available models

Available models
Models
Frequency range (transmit)
RF output power

R&S®FK4115X

Frequency range (transmit)
1.5 MHz - 30 MHz
RF output power
150 W (PEP)
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R&S®FK4190X

R&S®FK4190X

Frequency range (transmit)
1.5 MHz - 30 MHz
RF output power
1000 W
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