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Making Measurements
Measuring Amplifiers
Figure 1-44 Gain Compression Using Linear Sweep and
12.If was selected, recouple the channel stimulus by pressing:
13.To place the marker exactly on a measurement point, press:
14.To set the CW frequency before going into the power sweep mode, press:
15.Press .
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 .
18.If was selected, press .
19.Press .
Now channel 2 displays absolute output power (in dBm) as a function of power input.
20.Press to change the scale of channel 2 to 10 dB per
division.
21.Press to change the scale of channel 1 to 1 dB per division.
D2/D1 to D2 ON
COUPLED CH OFF
Sweep Setup
COUPLED CH ON
Marker Fctn
MARKER MODE MENU
MARKERS:DISCRETE
Seq
SPECIAL FUNCTIONS
MARKER
→
CW
Sweep Setup
SWEEP TYPE MENU
POWER SWEEP
Chan 2 Display
DUAL | QUAD SETUP
DUAL CHANNEL ON
D2/D1 to D2 ON
MORE
D2/D1 to D2 OFF
Meas
INPUT PORTS
B
Scale Ref
SCALE/DIV
10
x1
Chan 1 1 x1