User's Manual

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116/136 3CC10875AAAA TQ BJA 02
Issue 02 -January, 10 2000
– validate by clicking on “Apply” and close the application,
– use the 9900LT software applications to check the absence of alarms (see section 4.10).
7.3 – Change of frequency
7.3.1 – Change of frequency in the same sub–band
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To make this change:
– update the “Installation information” sheet required for station installation (refer to Appendix 1 of the
present Manual),
– modify the output power via the “Radio Management“ screen menu (refer to section 4.7 of the present
Manual),
– validate by clicking on “Apply” and close the application,
– use the 9900LT software applications to check the absence of alarms (see section 4.10 of the present
Manual).
7.3.2 – Change of frequency in a different sub–band or band
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The change of frequency in a different sub–band requires the RBS to be changed.
The change of frequency in a different band requires, in addition, the antenna(s) to be changed.
In both cases, therefore, the change of frequency requires the physical presence of the technician in each
station. The change of software configuration is carried out locally in each station.
The operations described below must be carried out in each station:
– update the “Installation information” sheet required for station installation (refer to Annex 1 of the
present Manual),
– turn off the power to the DBS rack(s),
– modify the Outdoor part with respect to the new configuration (exchange of RBS(s) and, where
applicable, antenna(s)), with reference to Chapter 3 of the present Manual,
– repeat the commissioning operations by programming the new operational parameters, as indicated
in Chapter 5 of the present Manual,
– use the 9900LT software applications to check that the duplex spacing between transmission and
reception frequencies is respected (see section 4.7),
– validate by clicking on “Apply” and close the application,
– use the 9900LT software applications to check the absence of alarms (see section 4.10 of the present
Manual).