Image of 1.2-1.3 GHz, Triplexer


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D-Star Solutions

36-97-07053-A, 1.2-1.3 GHz, Triplexeris 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.

Six VariNotch cavities make up this Triplexer which offers the best cost-to-performance ratio for close spaced applications. Our cavity and filter construction is second-to-none when it comes to the materials used and the processes to manufacture.

Low insertion loss, high isolation between any of the input ports and a compact package make this the ideal solution for 1.2 GHz D-Star® repeater system.

D-STAR is a new ham radio system which offers digital voice and data communication. It connects repeater sites over the Internet and forms a wide area ham radio network. The DSTAR system provides a new capability and functionality to the ham radio world and increases the efficiency of emergency communications.

Where do TXRX systems products come in?
D-star systems are being configured all over the world. Sites may be comprised of VHF, UHF, 1.2 GHz or a complete system including all bands. TXRX offers various products to handle the signal management issues for these repeater site installations.

Duplexers for 28-37-02A (VHF), 28-66-02A (UHF) and 28-97-01A (1.2 GHz) as well as the new 36-97-07053-A, 1.2 GHz Triplexer which allows the use of a single 1.2 GHz antenna for the Tx, Rx, and a high-speed Data channels.

For sites in need of using only a single feedline for VHF/UHF, TX RX Systems manufactures Crossband Coupler models 80-05-06 and 80-05-07 handling up to 250W per band.


Duplexer Selection Guide


Product Specifications 
Item No36-97-07053-A
Item Name1.2-1.3 GHz, Triplexer
Frequency Range1.2 - 1.3 GHz
Minimum T-R Separation12
Tx Insertion Loss1.3 dB
Rx Insertion Loss1.3 dB
Tx-Rx Isolation>70 dB
Antenna - Tx-Rx Isolation>70 dB
Impedance Ω50
Between Channel Isolation50 dB
Power Ratings100 W
Temperature Range-30 to +60°C
ConnectorsTX and RX Ports: N
Antenna Port: N
Dimensions H x W x D10.5" x 19" x 8.9"
(266.7 x 482.6 x 226.0 mm)
Mounting19” Reverse Flush Rack Mount
Weight13 lbs.

Compatible Devices:

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144-174 MHz, Duplexer

Image of 442-450 MHz, Duplexer

442-450 MHz, Duplexer

Image of Duplexer

144-174 MHz, Duplexer

Image of 28-97-01A

1215-1300 MHz, Duplexer