Duplexer
1850 – 1910 / 1930 – 1990 MHz (GSM 1900)
The Duplexer is designed to combine/split GSM 1900
Tx and Rx signals onto/from one common Tx/Rx antenna in order to save feeder cable and antenna costs.
• Suitable for indoor applications
• Built-in DC stop
Typical Attenuation Curves
Diagram I
Attenuation/dB
Antenna → Low band
Low Band
Antenna
High band → Antenna
0
10
20
1850 – 1910
1930 – 1990
30
40
High Band
50
60
70
Technical Data
936.2464/b
Pass band
Low band
High band
Insertion loss
Antenna → Low band
High band → Antenna
Isolation
Low band ↔ High band
VSWR
Impedance
Input power
Intermodulation products
Temperature range
Connectors
Application
Special features
Mounting
Weight
Packing size
Dimensions (w x h x d)
Internet: http://www.kathrein.de
792 544
90
100
1820 1840 1860 1880 1900 1920 1940 1960 1980 2000 2020
1850 – 1910 MHz
1930 – 1990 MHz
Frequency/MHz
Diagram II
< 0.7 dB (1850 – 1910 MHz)
< 0.7 dB (1930 – 1990 MHz)
> 65 dB (1850 – 1910 / 1930 – 1990 MHz)
< 1.25 (1850 – 1910 / 1930 – 1990 MHz)
50 Ω
< 300 W (low band or high band)
< –160 dBc (3rd order; with 2 x 20 W)
–20 ... +55 °C
7-16 female
Indoor
Built-in DC stop between all ports
With 4 screws (max. 4 mm diameter)
1.7 kg
282 mm x 252 mm x 114 mm
192 mm x 42.5 mm x 199.6 mm
(including connectors and mounting feet)
Antenna → Low band
Attenuation/dB
Subject to alteration.
Type No.
80
High band → Antenna
0
0.5
1.0
1850 – 1910
1930 – 1990
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
1820 1840 1860
1880 1900 1920 1940 1960 1980 2000 2020
Frequency/MHz
792 544
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KATHREIN-Werke KG . Anton-Kathrein-Straße 1 – 3 . PO Box 10 04 44 . D-83004 Rosenheim . Germany . Telephone +49 8031 1 84-0 . Fax +49 8031 1 84-9 91