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Duplexers (64)

Bird Technologies Group manufacturers a comprehensive line of duplexers with the critical specifications you require to operate a high performance system. Whether your application has a challenging T-R frequency spacing or requires broadband duplexed windows to implement a single antenna system, our Duplexers provide the transmitter and noise suppression characteristics you need while minimizing the loss to you carriers. Vari-Notch® Duplexers offer the best cost-to-performance ratio for close-spaced applications. Series Notch® Duplexers utilize a band-reject (notch circuit) design to optimize isolation specifications when necessary. Bandpass Duplexers can be used to combine transmitter combiners and Receiver Multicouplers to a ...

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6-Meter Duplexers

Patented Vari-Notch performance is now available to the 6-meter amateur enthusiast. This four-cavity duplexer uses full quarterwave coaxial cavity resonators with Vari-Notch coupling devices to achieve over 100 dB transmitter to receiver isolation at frequency separations dow to 0.500 MHz. In addition, this design offers significant suppression of transmitter spurious radiation at channel 2 TV frequencies which can help make your repeater more neighborhood friendly.

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Control Station Combiner Duplexers (3)

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Triplexers

The 36-97-07053-A Triplexer is the latest edition in our product line which is applicable to the Amateur Radio service. The design was based on the D-Star® radio system requirements in the 1.2 to 1.3 GHz band. Essentially a 3 input duplexer, the Triplexer allows combining the voice TX and RX channels onto a single antenna along with the simplex data only channel. This eliminates the need for a separate data channel antenna and feedline

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