User's Manual Part 2

RBS 2308 and RBS 2309 User’s Guide
3. Enter the hardware information, and click OK when finished.
4. Repeat steps 2 to 3 for all applicable HW units.
5. Click Close when finished.
7.6.9 Defining Loss
This section describes how to define the Total Feeder Attenuation.
To sustain uplink RX sensitivity and optimize the RF performance of the RBS, it
is essential to define the correct value for the loss parameter. That includes
losses from jumper cables, combiners, splitters and RF filters of an RX feeder
chain with attached TMA.
For a TMA configuration, this means that if the feeder loss value, measured
and calculated in chapter Antenna System Test, differs from the default loss
value of 3.996 dB, then the l oss parameter must be updated to the feeder loss
value. See test record from Antenna System Test.
For non-TMA configurations, the loss parameter is kept to the default value
of 0 dB.
1. On the Configuration menu, click Define and Loss to open the Define
Loss window.
2. Select the appropriate feeder cable (for example, FEED_RXA 0) and click
Run.
3. In the Define Loss window, enter the Total Feeder Attenuation from the
test record for Antenna System Tests and click OK. The OMT has default
values for the RRU to RXBP RX cables.
4. Repeat steps 2 to 3 for each RX and TX feeder used.
5. Close the Define Loss window when finished.
7.6.10 Defining RBS Identity
This section describes how to define the RBS Identity.
Specifying a name and a description for the RBS makes the RBS easier to
identify when for example connecting it by Remote OMT.
1. In the Configuration menu, select Define and RBS Identity to open the
Define RBS Identity window.
2. In the RBS name field, enter the RBS name (preferably a unique name
with a maximum of 20 characters).
3. In the RBS description field, enter information about the site, such as the
site name or the location of the site (maximum of 100 characters).
4. Click OK.
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/LZT 720 0027 Uen R8A 2006-06-27