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Duplexers & Preselectors

We are proud to be an authorized dealer and reseller for Fiplex products, including duplexers, pre-selectors and trunking combiners. Fiplex products are unmatched in quality and performance, with very low insertion loss, extremely high rejection and superior temperature compensation.

Fiplex is the OEM choice for radio manufacturers including Icom America and Vertex Standard. Yes, you can pay less for a duplexer elsewhere, but, the Fiplex mechanical and electrical design is unrivaled, and a Fiplex duplexer will never drift off frequency.

Fiplex products are unconditionally warranted by Red Dog Radios to meet or exceed our specifications when designing a custom system configuration for you.


Fiplex Compact Mobile DHL-1533 VHF Duplexer
$364.95
  • 50 watts max
  • 5 MHz min separation
  • Specify your low pass/high pass frequencies
  • BNC 
  • TNC 

Fiplex Rack-Mount DHV-1633 Compact VHF Duplexer
$1,199.95
  • 150 watts max
  • 1.6 MHz min separation
  • N connectors
  • Specify your low pass/high pass frequencies

Fiplex Pass-Reject DVN-1522L Full-Size VHF Duplexer
$1,244.95
  • 150 watts max
  • 600 kHz min separation
  • N connectors
  • Specify your low pass/high pass frequencies

Fiplex Compact Mobile DCL-4533 UHF Duplexer
$364.95
  • 50 watts max
  • 5 MHz min separation
  • Specify your low pass/high pass frequencies
  • TNC 
  • BNC 

Fiplex Rack-Mount DHV-4533 Compact UHF Duplexer
$1,199.95
  • 150 watts max
  • 3.0 MHz min separation
  • N connectors
  • Specify your low pass/high pass frequencies

Pass-Reject DVN-4522L Full-Size UHF Duplexer
$1,084.95
  • 150 watts max
  • 3.0 MHz min separation
  • N connectors
  • Specify your low pass/high pass frequencies

Compact PR15-3H VHF Preselector
$239.95
  • 4 MHz bandwidth
  • 3 resonators
  • Specify your center frequency
  • BNC 

Compact PR15-4H-PE VHF Preselector
$419.95
  • 2 MHz bandwidth
  • 4 resonators
  • N connectors
  • Specify your center frequency

Compact PR45-3C UHF Preselector
$239.95
  • 2 MHz bandwidth
  • 3 resonators
  • Specify your center frequency
  • BNC 

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