Anritsu BTS Master MT8222A, Руководство пользователя, Страница: 46 / 115

Basic Measurement Setups 3-6 Setting Up Limit Lines
BTS Master UG PN: 10580-00156 Rev. T 3-5
3-6 Setting Up Limit Lines
Press the
Shift
key then the
Limit
(6) key on the numeric keypad to display the Limit menu.
Single Limit Line
Spectrum Analyzer and Interference Analysis Modes
1. Press the
Limit (Upper / Lower)
submenu key to select the desired limit line, Upper or
Lower.
2. Activate the selected limit line by pressing the
On Off
submenu key so that
On
is
underlined.
3. Press the
Limit Move
submenu key to display the Limit Move menu. Press the
Move Limit
submenu key to change the dBm level of the limit line.
4. Press the
Back
submenu key to return to the Limit menu.
5. If necessary, press the
Set Default Limit
submenu key to redraw the limit line in view.
Cable and Antenna Mode
1. Press the
Shift
key followed by the
Limit
main menu key to list the Limit menu.
2. Activate the limit line by pressing the
Limit On Off
submenu key so
On
is underlined.
The limit line is displayed on the graph.
3. Press the
Single Limit
submenu key to change the location of the limit line on the y-axis.
4. If necessary, press the
Set Default Limit
submenu key to display the limit line.
Segmented Limit Lines
Spectrum Analyzer and Interference Analysis Modes
The following procedure creates limit lines for a Return Loss Measurement. Limits are set to
12 dB between 1000 MHz and 1400 MHz and to 15 dB between 1600 MHz and 2000 MHz.
Initial Setup:
1. Press the
Limit (Upper / Lower)
submenu key to select the desired limit line, Upper or
Lower.
2. Activate the selected limit line by pressing the
On Off
submenu key so that
On
is
underlined.
3. Press the
Limit Move
submenu key to display the Limit Move menu.
Creating a Sample Segmented Limit Line:
4. Press the
Move Limit
submenu key and use the number keys to enter a limit value of
12 dB. The limit value can also be moved by using the arrow keys or the rotary knob.
Press the
Back
submenu key to return to the Limit menu.
5. Press the
Limit Edit
submenu key to display the Edit menu.
6. Press the
Add Point
submenu key.
7. Press the
Frequency
submenu key and enter 1400 MHz.
8. Press the
Add Point
submenu key
9. Press the
Frequency
submenu key and enter 1600 MHz.