User's Manual Part 2

RBS 2109 User’s Guide
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 DTF 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 82.
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 metres by the attenuation per metre.
3. Add the attenuations for the feeder and the jumpers, see Table 15 on
page 85
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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4
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N/LZT 720 0090 Uen R1A 2004-09-17