Tektronix 2715, Руководство пользователя

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Operating Basics
3–6
2715 User Manual
Figure 3–5: The Keypad
Numeric keys are used to enter numerical values in the immediate entry mode or
in response to menu prompts. They are also used to select the numbered items
from menus.
The terminator keys signify the end of an entry, and supply the appropriate units
for the entry. They are context sensitive; if you press [X], the spectrum analyzer
automatically interprets it as MHz, ms, or mV depending on the parameter being
entered.
The dot key supplies the decimal point in numeric entries, and can be used as a
period in label and title entries.
The backspace key erases the last character pressed in data entry modes and
backs up one menu level when menus are active.
Figure 3–6: Display Register Control
Pressing [A], [B], [C], or [D] when SAVE ENABLE is not armed turns its
respective register on and off for display. When the register is displaying data
(saved or current), the red LED to the lower right of the key is lighted.
When SAVE ENABLE is armed, press [A], [B], or [C] to store the current sweep
if the register is cleared, or clear the register if it contains saved data.
Numeric Keys (0–9)
Terminator Keys
(W, X, Y, Z)
Dot Key (
Ă
D
Ă)
BKSP Key
Register Select and Save
Keys (A, B, C, D)