sysmocom cavity duplexers

dx1800-kt30

We offer a variety of cavity duplexers for major cellular bands. They can be used as accessories to our own base station products, as well as with third-party base station products or SDR based systems.

Cavity duplexers offer excellent performance compared to discrete duplexers built from electronic components or even SAW filters:

  • very low insertion loss (typically <= 1.0 dB), ensuring most of your intended signal actually passes through

  • very high attenuation of any frequencies outside the respective Rx and Tx bands

  • large isolation between Rx and Tx, protecting the sensitive Rx input from being overdriven with the relatively high power Tx signal.

sysmocom offers mainly two families of duplexers: Either rated up to 30W RF power for use in dry environment (-kt30 suffix) only, or with IP67 rated weather-proof enclosure for outdoor (-kt40-ip67 suffix).

sysmocom cavity duplexer models

The table below shows our standard models, most of which we typically keep in stock in low quantity. Non-stock parts require an average or 4-5 weeks of production lead time.

SKU

Band

Uplink MHz

Downlink MHz

max. RF Power

IP67

Data Sheet

Shop

dx850-kt30

5

824 - 849

869 - 894

30

No

data sheet

http://shop.sysmocom.de/products/dx850-kt30

dx850-kt40-ip67

5

824 - 849

869 - 894

40

Yes

data sheet

http://shop.sysmocom.de/products/dx850-kt40-ip67

dx900-kt30

8

880 - 915

925 - 960

30

No

data sheet

http://shop.sysmocom.de/products/dx900-kt30

dx900-kt30

8

880 - 915

925 - 960

40

Yes

data sheet

http://shop.sysmocom.de/products/dx900-kt40-ip67

dx1800-kt30

3

1710-1785

1805-1880

30

No

data sheet

http://shop.sysmocom.de/products/1800-mhz-dcs-duplexer-30w

dx1800-kt40-ip67

3

1710-1785

1805-1880

40

Yes

data sheet

http://shop.sysmocom.de/products/dx1800-kt40-ip67

dx1900-kt30

2

1850-1910

1930-1990

30

No

data sheet

http://shop.sysmocom.de/products/dx1900-kt30

dx1900-kt45-ip67

2

1850-1910

1930-1990

40

Yes

data sheet

http://shop.sysmocom.de/products/dx1900-kt45-ip67

dx800-kt30

20

791 - 821

832 - 862

30

No

data sheet

http://shop.sysmocom.de/products/dx800-kt30

dx2100-kt30

1

1920-1980

2110-2170

30

No

data sheet

http://shop.sysmocom.de/products/dx2100-kt30

dx2600-kt30

7

2500-2570

2620-2690

30

No

data sheet

http://shop.sysmocom.de/products/dx2600-kt30

custom duplexer models

We are very happy to produce cavity duplexers per our customer request. Customization includes bands / frequency, connectors / RF pwerformance parameters. Please reach out to sales@sysmocom.de with your requirements. We can produce custom duplexers in low quantities (absolute minimum 10 units), but not at MOQ-1. Thanks for your understanding.