Tektronix 2715, Руководство пользователя

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Spectrum Analyzer Menus
2715 User Manual
6–15
After you enter a value for a factor, the asterisk moves to the next frequency. If
you do not want to change the antenna factor at the indicated frequency, turn the
FREQ/MKRS knob to move the asterisk to the desired frequency.
For instance, suppose an antenna manufacturer specifies the antenna factors for
his antenna as follows:
f k f k f k
—
51.0
52.0
53.0
54.0
—
2.1
2.3
2.4
2.5
55.0
56.0
57.0
58.0
59.0
2.7
2.9
3.0
3.2
3.3
60.0
61.0
62.0
63.0
—
3.5
3.6
3.8
3.9
—
Then to make measurements from 55 to 60 MHz, the entries in the antenna table
should look like this:
1> 55.000000 : 2.7
2> 56.000000 : 2.9
3> 57.000000 : 3.0
4> 58.000000 : 3.2
5> 59.000000 : 3.3
6> 60.000000 : 3.5
10. If you are creating a new antenna table, press [Z] to exit (return to EDIT
ANTENNA TABLE) after the last entry has been completed. If you are
editing an existing table, press [W] after your last entry. Then press [Z] to
return to EDIT ANTENNA TABLE.
Naming antennas is not required, but names can provide quick reminders of the
purpose of each antenna. The following steps show how to name an antenna:
11. Press [1] to select TITLE EDIT.
12. Press [W] to begin editing.
If an old antenna table is being modified, its name appears at the upper left with
an underscore cursor beneath the first letter. If the antenna table is new, only the
cursor appears.
13. Press [Y] to delete an old name entirely. (You can press [Z] to abort the title
editing process without changes.)
14. Turn the FREQ/MKRS knob to select letters to change the title.
15. Use MKR [
'
] or MKR [
a
] to move the cursor back and forth.