Radio Transmission
20.4.2
Frequency Bands
Transmitters for the GSM band are capable to operate in the extended
GSM frequency band, 925 - 960 MHz. The combining system supports
the primary GSM 900 band, 935 - 960 MHz, see /GSM:05.05:2/.
Transmitters for the GSM 1800 band operates in the 1800 frequency
band, 1805-1880 MHz, see /GSM:05.05:2/.
Transmitters for the GSM 1900 band operates in the 1900 frequency
band, 1930-1990 MHz, see /PCS:5.1/.
20.4.3
Nominal Power
The nominal power is the maximum output power the transmitter is
allowed to use. Nominal power is defined as the power level at the
output of the transmitter which in the Micro Building System
corresponds to the Tx ref point. The nominal power is set at
configuration. It is possible to set 7 values in 2 dB steps with accuracy
according to /GSM:05.05:4.1.2/ for GSM 900 and GSM 1800 and /
PCS:3.3.3.1/ for GSM 1900.
20.4.4
Output Power
The output power is measured at the TX reference point, see Section
20.2 Concepts on page 135.
The output power is configuration dependent and is described in chapter
Radio Configurations, RBS 2000 Micro.
138 (306)
EN/LZT 123 2697
R5A
1998-08-13
© Ericsson Radio Systems AB
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