Reference Manual

Product Description 36 (33)
© Ericsson. Commercial in confidence Rev B 2001-05-16 SRN/X-00:146
8 Dual Band GSM 900/1800 Radio Specification
The operating specifications of the radio equipment will in most cases exceed the
performance requirements specified in the GSM Technical Specifications.
The Dual Band BTS comprises equipment for both GSM 900 and GSM 1800.
8.1 System Data
The System Data, for the Dual Band RBS are the same as for the GSM 900 and the GSM
1800.
8.2 Configurations Dual Band RBS
Table 15. Configurations for Dual band with CDU-G.
Max
Config
(900|1800)
No. of
cabinets
TMA Number of
CDU’s
Number of Antennas
1
CDU
type
1x4|1x4 1 Opt. 2 (2)|(2) G
1x8|1x4 1 Opt. 3 (4)|(2) G
1x4|1x8 1 Opt. 3 (2)|(4) G
Table 16. Configurations for Dual Band with CDU-F and the hybrids used in the dTRU’s
(combined mode).
Max
Config
(900|1800)
No. of
cabinets
TMA Number of
CDUs
Number of Antennas
1
CDU
type
1x4|1x4 1 Opt. 2 (2)|(2) F
1x8|1x4 1 Opt. 3 (2)|(2) F
1x4|1x8 1 Opt. 3 (2)|(2) F
1
The number of physical antennas is reduced if cross-polarised antennas are used.