Tektronix RFM150, Инструкция по эксплуатации, Страница: 28 / 278

Tutorial
1–6 RFM 150 Instruction Manual
a. If you select AUTO, the instrument will continually adjust the
contrast level for best viewing at differing temperatures.
b. To use the MANUAL mode, select CONTRAST, then turn the
knob to achieve best contrast. A beep will sound if you
exceed either end of the range (0% to 100%).
C. Channel Table Setup
When making measurements with the RFM 150, you must have the
correct channel table setup.
1. Select the active table as follows:
a. Press UTIL, then press F2 (CHAN TABLE). A list of all
channel tables will be displayed, with the active channel table
name displayed above the list. (Nine fixed channel tables are
loaded in the RFM 150, and they are defined in Appendix A.
The factory setting is the CATV–STD table.)
b. Use the knob to select a table that is appropriate for your RF
input signal. Press F1 (MAKE ACTIVE). The selected
channel table now becomes the active table. This is the
channel table that will be used when making measurements.
2. Edit the Skip, Scrambled, Dwell Time, and Amplitude Offset
fields of the channel table if desired.
3. Create custom tables, if desired, using the companion CSS150
package. For information, refer to the CSS150 SignalScout
Software User Manual.
D. Using Help Screens
1. Enter the 1 channel mode, then press the HELP key. The help
screen is displayed. The percent of remaining battery charge is
indicated in the upper right portion of the help screen. After a full
8 hour charge, 99% or 100% should be displayed.
2. Use the knob to scroll through the lines of this help screen. The
help screen begins with a description of the measurement portion
of the 1 channel display (Mode Help), and ends with a description
of the preset keys (Function Keys Help).
3. Press ESC to exit the help screen.
Tutorial
1–6 RFM 150 Instruction Manual
a. If you select AUTO, the instrument will continually adjust the
contrast level for best viewing at differing temperatures.
b. To use the MANUAL mode, select CONTRAST, then turn the
knob to achieve best contrast. A beep will sound if you
exceed either end of the range (0% to 100%).
C. Channel Table Setup
When making measurements with the RFM 150, you must have the
correct channel table setup.
1. Select the active table as follows:
a. Press UTIL, then press F2 (CHAN TABLE). A list of all
channel tables will be displayed, with the active channel table
name displayed above the list. (Nine fixed channel tables are
loaded in the RFM 150, and they are defined in Appendix A.
The factory setting is the CATV–STD table.)
b. Use the knob to select a table that is appropriate for your RF
input signal. Press F1 (MAKE ACTIVE). The selected
channel table now becomes the active table. This is the
channel table that will be used when making measurements.
2. Edit the Skip, Scrambled, Dwell Time, and Amplitude Offset
fields of the channel table if desired.
3. Create custom tables, if desired, using the companion CSS150
package. For information, refer to the CSS150 SignalScout
Software User Manual.
D. Using Help Screens
1. Enter the 1 channel mode, then press the HELP key. The help
screen is displayed. The percent of remaining battery charge is
indicated in the upper right portion of the help screen. After a full
8 hour charge, 99% or 100% should be displayed.
2. Use the knob to scroll through the lines of this help screen. The
help screen begins with a description of the measurement portion
of the 1 channel display (Mode Help), and ends with a description
of the preset keys (Function Keys Help).
3. Press ESC to exit the help screen.