NF FRA5022, Instruction Manual

Page: 61 / 145

3.5 Basic Operations
FRA5022
3-31
3.5.8 Sweep Measurement Screen
The Sweep measurement screen displays the measured gain (dB) and phase (deg) as a
Bode diagram.
The settings for measurements or display are made under the Sweep menu screen.

“3.5.5 Sweep Menu Screen”
Figure 3-13 Sweep measurement screen
■
Measured values reading
The sweep measurement screen allows you, during the STOP mode, to check the gain
and phase at each frequency by moving the frequency cursor (vertical line on the
graph) using the Left/Right cursor keys
△ ▽
. The cursor moving speed (the number of
points to move at one time) can be adjusted using the m key and k key in the range of
×
1/
×
2/
×
4/
×
10/
×
100. Pressing the m key increases the spead. Upon specifying the
moving speed, the speed is displayed on the screen for a short duration.
■
Frequency axis magnification
When many frequency points are clustered and cannot be resolved, using the UP
cursor key allows you to magnify the frequency axis near the cursor by 1
×
/2
×
/4
×
/8
×
/16
×
. Use the Up/Down cursor keys (MAG) to magnify/reduce the display as
needed.
Frequency axis
magnification
ration
Setting memory
number
Title
Oscillator output
ON OFF status
Measurement
mode
Data memory
display
Gain (dB)
Phase (deg)
Frequency
Gain graph
Phase graph
Left/right end,
Frequency max/min
Upper/lower end,
Gain max/min
Upper/lower end,
Phase max/min
Frequency
AC amplitude
DC bias
Integration cycle Integration time
Current oscillator output
(when output is open)
During measurement: latest measurement value the cursor (vertical axis) is not displayed.
When STOP: value for the cursor position
When the graph axis (measured values display format) settings are
“ G, P
-
F ” or “ a
-
b ” , the
following values are displayed according to the settings.
Below Gain (dB): linear gain G or real value a of complex gain a + jb
Below Phase: imaginary value b of complex gain
Frequency axis Log/Lin
Sweep measurement
status
Cursor
Blinks when ON
+10.0
GAIN
-73.05dB
G
2.2259E-04
-120.0
4.7285kHz
MAG x 1 9: TITLE AC/DC CH2/CH1 A/B
OSC:123.45mHz 7.0.00Vdc 1c/0.10s
123.45m Freq(Hz) LOG <STOP> 100.00k
+180.0
PHASE
-0.05deg
-180.0