User's Manual Part 2

RBS 2308 and RBS 2309 User’s Guide
1. Find the cell ID in the Site Installation Documentation.
2. Read the label text on the jumper being measured.
3. Combine the measurement type, cell ID and label text (a unique name
with a maximum of 16 characters).
The following example illustrates these steps:
1. The cell ID found in the Site Installation
Documentation is "SOF007_A".
2. The text on the feeder label is "Cell A: DX1".
3. The type of measurement is DTF, so the name of
the measurement is "DTFSOF007ADX1".
Example 1 Naming a D TF Measurement
6.5 Calculating the Feeder Attenuation
This section describes how to calculate the attenuation of the feeder system.
1. Use the feeder length measured in Section 6.3.3 Measuring Feeder Length
on page 96.
2. Find the attenuation value (dB/m) for the cable type in the table below.
Calculate the total attenuation for each feeder and jumper, by multiplying
the length in meters by the attenuation per meter.
3. Add the attenuations for the feeder and the jumpers, see Table 20 on
page 98.
4. Enter the result of the calculation in the test record.
5. Repeat the DTF test, and calculate the feeder attenuation for all antenna
feeders on the site.
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/LZT 720 0027 Uen R8A 2006-06-27