NF FRA5022, Instruction Manual

Page: 60 / 145

3.5 Basic Operations
FRA5022
3-30
3.5.7 Sweep Measurement
Sweep measurement measures gain and phase by sweeping the frequency.
The settings for measurements or display are made under the Sweep menu screen.

“3.5.5 Sweep Menu Screen”
The measurements results are displayed on the sweep measurement screen as Bode
diagrams.
Sweep measurements are made by operating the four keys located on the
MEASUREMENT SWEEP part of the front panel. The operation related to each key is
described below. The UP key is disabled while the sweep is in the UP mode.
Figure 3-12 Sweep measurement control keys
DOWN Performs a sweep from the maximum frequency to the minimum
freauency when the operation is in the STOP mode.
When HOLD or UP is active, a sweep is executed from the frequency
f
at that point to the minimum frequency.
If
f
≦
minimum frequency or
f
＞
maximum frequency the sweep is
executed from the maximum frequency.
A manual sweep performs a measurement only once toward the next
frequency point.
UP Performs a sweep from the minimum frequency to the maximum
freauency when the operation is in the STOP mode.
When HOLD or DOWN is active, a sweep is executed from the
frequency
f
at that point to the maximum frequency. If
f
≧
maximum
frequency or
f
＜
minimum frequency the sweep is executed from the
minimum frequency.
A manual sweep performs a measurement only once toward the next
frequency point.
HOLD Stops frequency change. Fixes the frequency to the current point and
performs a measurement.
Even if
f
＜
minimum frequency or
f
＞
maximum frequency, a
measurement is performed at
f
.
In an automatic sweep, the measurement is repeated for that
frequency.
In a manual sweep, the measurement is made only once at that
frequency.
STOP Stops sweep measurement. Retains the last frequency used.
When the total number of measured data has reached the maximum
data memory volume of 1000 point it becomes impossible to perform
further measurements and the sweep is stopped.
■
Operation upon pressing of MENU key or SETUP key
Preesing the MENU key or SETUP key displays the setup screen. While the setup
screen is displayed, sweep measurement is paused and no measurement is performed.
After the settings are changed, the previous measurement data will be displayed until
a new measurment is started.
DOWN HOLD UP STOP
SPOT SETUP
EXIT
SWEEP
MEASUREMENT
Sweep measurement control keys