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40 (66) © Nokia Corporation Draft DN99252966
Nokia Proprietary and Confidential Issue3-0en
Figure 14. Dimensions of the GSM/EDGE combiner
Table 17. Specifications for the GSM/EDGE combiners
GSM 900
Combiner
GSM 1800
Combiner
GSM 1900
Combiner
Transmit Path:
Frequency range 925-960 MHz 1805-1880 MHz 1930-1990 MHz
Impedance 50 Ω 50 Ω 50 Ω
Insertion loss 3.5 dB maximum 3.5 dB maximum 3.5 dB maximum
Antenna port
return loss
18 dB minimum 18 dB minimum 18 dB minimum
BTS port return
loss
18 dB minimum 18 dB minimum 18 dB minimum
Isolation BTS
port to BTS port
(antenna port
loaded to 50 Ω
25 dB minimum 25 dB minimum 25 dB minimum
Power handling 2 x 10 W 2 x 10 W 2 x 10 W
Receive Path: