User's Manual Part 2

RBS 2109 User’s Guide
3. Enter the
Start frequency
in MHz, from the table below. Press ENTER.
4. Press the F2 soft key.
5. Enter the
Stop frequency
in MHz, from the table below. Press ENTER.
6. Check that the FREQ (MHz) scale in the display area indicates the correct
frequency start and stop values.
Table 13 Start and Stop Frequencies
System Start Freq. (MHz) Stop Freq. (MHz)
GSM 800
800 1000
GSM 1900
1800 2000
6.2.2 Performing Calibration
This section describes how to perform the calibration of the Site Master.
To calibrate the Site Master, a Precision Open/Short/Load is needed; this
is shown in the figure below.
P009530A
Test Port Extension Cable
MODE
2
3
4
5
6
7
8
9
0
Site Master
FREQ/DIST
AMPLITUDE
SWEEP
Load
Short
Open
3
1
2
Figure 32 Connecting the Open/Short/Load
For correct calibration results, ensure that the Open/Short/Load is connected
at the end of the Test Port Extension Cable, at the same point where the test
object is to be connected.
1. Connect the Test Port Extension cable.
2. Ensure that the correct frequency range is selected.
77EN/LZT 720 0090 Uen R1A 2004-09-17