CONTROLS AND CONNECTORS
4-6
(17) [RETN] After using the [×÷10] or [Ø×10] keys or the control knob
returns the setting of the function to the last keyed-in value.
(18) [KNOB/STEP] Switches between enabling the control knob and enabling the
step operation.
(19) [SET REF] Transfers the current value as the keyed-in setting.
(20) [×÷10]
When KNOB is enabled, increases the knob resolution by a
factor of 10.
When STEP is enabled, increments the current function by
one step.
[Ø×10]
When KNOB is enabled, decreases the knob resolution by a
factor of 10.
When STEP is enabled, decrements the current function by
one step.
(21) [ENTER]/Units keys Determine the units of the set parameters; also used to
terminate a numerical entry.
(22) [MOD SOURCE]
Selects modulation source as the current function and causes
the main screen to be displayed.
For internal modulation repetitive pressing of this key cycles
through the currently selected modulation sources while
displaying the appropriate wave shape on the screen.
For external modulation it cycles through the currently
selected external coupling modes.
(23) [SET Δ] Press to obtain the step setting display. To change the step
size, press the relevant function key.
(24) [STO] Used to store the current instrument settings in memory.
(25) [MOD] Selects modulation as the current function and causes the
main screen to be displayed. Repetitive pressing of this key
cycles through each of the modulations of the current mode
together with their source values.
(26) [SELECT] Selects an item highlighted on a utility menu.
With the main screen displayed selects the last utility
accessed.
After power-up causes the software status to be displayed.
[LOCAL] Transfers control from the GPIB to the front panel
(providing local lockout not asserted).
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