Base Station System ND 951
R&S BICK Mobilfunk GmbH
DVers.: 01 / 28.01.99
951_ENG.DOC
Page: 12 / 14
2.4.16 Storing of Channels
The channels of each transceiver are stored with the following command:
Amm
30/nnnn
30/EE++++
For this, mm is the CCU address of the transceiver and nnnn is the transceiver channel number.
This is repeated for all transceivers.
2.4.17 Tuning the Transmitter Combiner
The combiner filter is now aligned with the dialled channel. First the CCU-address of the transceiver
is dialled. Then the transmitter is switched on and the continuous display of the TX combiner
alignment is activated.
Amm
10+
C/12
The display of the combiner alignment is now aligned with the minimum value. Finally the
transmitter is switched off.
10-
This procedure is repeated for all channels. When all channels are aligned, it is recommended to
repeat the whole alignment for all channels. It is not necessary to switch off all transmitters while
this is done. To simplify the procedure and to make it more precise, it is useful, however, to only
load the channel which is being measured with the HF of the corresponding transmitter. A DC-
multimeter can be connected directly to the combiner test point.
2.4.18 Channel Self-Test
The installation is ready for a self-test. It is started on all channels by a software reset:
B/02+
With the following command a self-test without RX-antenna test can be started on all channels
simultaneously:
B/04-
