28-37-02A-DIN
28-37-02A-DIN
D-Star Solutions 28-37-02A-DIN, 144-174 MHz, Duplexer
- TX RX Systems offers a wide variety of Duplexer options to suit your application, including Vari-Notch®, Bandpass, and notch type circuits
- Vari-Notch® design provides low loss and high isolation in a compact package
- All high RF-current components silver-plated for highest performance
- Various models to choose from to match your application.
Notes
Specifications for duplexers of unsymmetrical construction or response are listed as follows:
- Isolation: Noise Suppression/Carrier Suppression
- Insertion Loss: Tx Loss/Rx Loss
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.
Downloads:
| Product Specifications | |
|---|---|
| Item No | 28-37-02A-DIN |
| Item Name | 144-174 MHz, Duplexer |
| Frequency Range | 144-174 MHz |
| Minimum Freq Separation | 0.5 MHz |
| Power Rating | 400 W |
| Isolation | 85 dB |
| Insertion Loss | 1.5 dB |
| Number of Cavities | 4 |
| Cavity Size | 6.625" Dia. |
| VSWR | 1.3:1 |
| Impedance Ω | 50 |
| Dimensions H x W x D | 33" x 19" x 7.5" |
| Tx-Rx Port Connectors | N |
| Antenna Connectors | 7/16 DIN |
| Temperature Range | -30 to +60 °C |
| Shipping Weight | 50 lbs. |
28-66-02A
442-450 MHz, Duplexer
28-97-01A
1215-1300 MHz, Duplexer