Fluke 5700A Series II - Variable Phase Output

5700A/5720A Series II
Operators Manual
4-34
11. Press E. The calibrator clears your entry from the Control Display and copies
it into the Output Display. No voltage is available at the WIDEBAND Type “N”
coaxial connector however, until you press O.
12. Press O to activate the calibrator’s output. The UUT will now respond to the
applied voltage.
Note
To deactivate the Wideband AC Module and switch to another output
function, press w. If you are sourcing an ac voltage or dBm level within
the range of the standard ac voltage output mode, that value is selected.
Otherwise, the Output Display reads 0 mV (dc).
When you are using units
of dBm and switching between wideband and standard ac voltage output,
the amplitude changes. This change occurs because for the wideband
function, decibel levels are computed for a 50
Ω load, and for the standard
ac function, decibel levels are computed for a 600
Ω load.
4-31. Variable Phase Output
A variable-phase signal of nominally 2.5V rms is available at the rear panel BNC
connector labeled VARIABLE PHASE OUT when sourcing ac V, wideband voltage, or
ac current outputs. The phase of this signal with respect to the main output signal is
continuously adjustable from -180º to +180º in 1º increments. The rotary knob and
softkeys adjust the phase of this signal, after calling up the phase controls menu using a
softkey. The Control Display shows the phase of the phase output signal as a number and
a cursor on a linear scale graduated in 90º steps from -180º to +180º.
To set and adjust a phase output, proceed as follows:
1. Set an ac voltage or current output as described under “AC Voltage or Current
Output.”
2. Press the “Phase Ctrls Menu” softkey. The Control Display appears as shown below:
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