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Low-Band Compact Base Station Duplexer for DOT applications

Product features
* Compact Base Station duplexer designed for Department of Transportation communications systems.
* Broadband design.
* Factory tuned to cover the full D.O.T. frequency range :45.120 – 45.600 MHz at low pass, and 47.040 – 47.360 MHz at high pass.
* High power handling capability.
* Small size.
* Fast and easy reallocation without any field retuning.
* Eight high Q (helical) resonant cavities, interconnected in a band pass-band reject configuration.
* Unique design and rugged construction that ensures long term performance stability.
* Supplied with brackets for installation on a flat chassis.
* Standard connectors are N female.

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Low-Band Compact Base Station Duplexer • 25-55 MHz

Product features
* Compact Base Station duplexer designed for low band applications.
* Eight high Q (helical) resonant cavities, interconnected in a band pass-band reject configuration which allows close spaced transmit-to-receive frequency operation.
* Unique design and rugged construction that ensures long term performance stability.
* Supplied with brackets for installation on a flat chassis.
* Standard connectors are N female.

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Mobile Band Reject Duplexers • Helical Type • 136-520 MHz

Product features
* Helical mobile duplexers
* Band reject configuration
* Semi-rigid coaxial cables are used to improve Tx to Rx isolation
* Six helical resonators, housed in 6063-T6 aluminium cavities with alodine finishing
* Standard connectors are BNC female.

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Mobile Band Reject Duplexers • Coaxial Type • 340-960 MHz

Product features
* Coaxial mobile duplexers intended to be used in systems up to 50 watts in the 340 – 960 MHz range.
* Resonant cavities are interconnected in a band reject configuration, which allows typical Tx to Rx frequency separation of 5.0 MHz in the range of 340-520 MHz, and 9.0 MHz in the range of 800 – 960 MHz.
* Semi-rigid coaxial cables are used to improve Tx to Rx isolation.
* Six TEM silver plater cooper resonators, housed in 6063-T6 alodine finished aluminium cavities.
* Standard connectors are BNC female.

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Band Pass-Band Reject Base Station Duplexers • 136-960 MHz

Product features
* Duplexers intended to be used in high power applications, or when there is small Tx-Rx separation.
* Around the pass frequencies, these duplexers display a quasi band pass response, providing an additional selectivity that protects the receiver against interferences and reduces the noise and spurious emission of the transmitter.
* Good thermal stability is obtained by a fine design an by the use of INVAR rods to control the tuning of each resonator.
* Supplied with mounting brackets for 19″ racks.
* Standard connectors are N female.

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VHF High Power Band Pass-Band Reject Base Station Duplexers

Product features
* True Band Pass Band Reject response
* Low loss
* High Q TEM resonant cavities
* Rack mounting
* Wide temperature, high stability
* INVAR control cavities
* Silver plated resonators

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