Agilent Technologies 8753ET User Manual page 75

Making Measurements
Measuring Amplifiers
Figure 1-49 Gain Compression Using Linear Sweep and
12.If
COUPLED CH OFF
COUPLED CH ON
Sweep Setup
13.To place the marker exactly on a measurement point, press:
MARKER MODE MENU
Marker Fctn
14.To set the CW frequency before going into the power sweep mode, press:
SPECIAL FUNCTIONS
Seq
15.Press
Sweep Setup
If interpolation is on (the default setting), the calibration will be applied to the power
sweep.
16.Enter the start and stop power levels for the sweep.
Now channel 1 is displaying a gain compression curve. (Do not pay attention to channel
2 at this time.)
17.Press
Chan 2 Display
18.If
D2/D1 to D2 ON
19.Press
Meas INPUT PORTS
Now channel 2 displays absolute output power (in dBm) as a function of power input.
20.Press
Scale Ref
division.
21.Press
Chan 1 1
1-62
was selected, recouple the channel stimulus by pressing:
MARKER→ CW
SWEEP TYPE MENU
DUAL | QUAD SETUP
was selected, press
.
B
SCALE/DIV
10
to change the scale of channel 1 to 1 dB per division.
x1
MARKERS:DISCRETE
POWER SWEEP
DUAL CHANNEL ON
MORE D2/D1 to D2 OFF
to change the scale of channel 2 to 10 dB per
x1
D2/D1 to D2 ON
.
.
.