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All variables are entered into the 3314A with the MODIFY knob and the RANGE
UP or DOWN
or 1) keys. Variables are entered literally from the HP-IB, see HP-IB
(t
Programming for more details.
Modify Knob
The MODIFY knob has 2 distinct modes: a multi speed mode to quickly make large
changes and a cursor mode for fine tuning or making constant increments. The
3314A is in cursor when a digit in the display is flashing. The flashing digit is in-
cremented or decremented by 1 every time rotation of the MODIFY knob is sens-
ed.
The LEFT and RIGHT ARROW keys move the digit through the
no digit is flashing, the 3314A is in the multispeed mode. The display is
cremented by 1,2,4,8,16 or 32 depending upon how fast you rotate the Modify
knob.
Range Up or Down
The RANGE UP key multiplies the display by 10. The RANGE DOWN key divides
display by 10. If the result would be operation outside the limits of the
3314A, the key and the HP-IB commands" RU" or "RD" are ignored.
Range Hold
Frequency, Amplitude and Offset are implemented in the 3314A with several dif-
ferent hardware configurations, called ranges. Range Hold allows the user to limit
the operation to a single hardware configuration. The advantage of Range Hold is
that the range of operation without a discrete step is
tage from the front panel is the extended range of constant increments. Since the
3314A's output frequency is synthesized in frequency ranges 7 and 8, Range
Hold can increase the range of synthesized output frequencies down to 1kHz. The
primary disadvantage is reduced resolution in the lower portion of each range.
DATA ENTRY
51
display.
increased.
Another advan-
When
in-
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