Giga-tronics 8003, Operation Manual

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8003 Precision Scalar Analyzer
2-104 Manual 20791, Rev. C, June 2001
2.14 8003 Power Sweep Measurements
Besides Swept and CW measurements, the 8003 Analyzer supports a Power Sweep measurement mode.
A linear power sweep of 20 dB or less is possible with 0.01 dB level resolution over a power range of
15 dBm to -120 dBm, depending on the source used (Giga-tronics 12000A, 7200, 7300 and HP8340,
8350B are presently supported). Digital power sweep is also possible with a 110 dB sweep range and a
minimum step size of 0.01 dB. The Power Sweep Mode can be entered from the Swept Mode by pressing
[POWER]
followed by the [ POWER SWEEP ] softkey. Once this mode is accessed, the following
variables can be set:
• Power Sweep ON/OFF
• Start Power Level
• Stop Power Level
• Frequency of Power Sweep
• Sweep Time
• Analog/Digital Power Sweep Mode
(Analog mode is the default. In the Digital mode, the Step Size default is 0.1 dB with a range of
about 0.01 to
±
110 dB. Digital power sweep dwell time is fixed at 10 msec).
A linear power sweep measurement can be made using the following keystrokes:
[POWER]
[ POWER SWEEP ] [ PWR SWP ON/OFF ] (toggle ON)
[ ANALOG ] (toggle to ANALOG if necessary)
[ START POWER ] (enter the desired starting power level in dBm)
[ STOP POWER ] (enter the desired stopping power level in dBm)
[ FREQ ] (enter the desired frequency)
[SWEEP TIME]
(enter the desired sweep time)
Figure 2-59: Menus & Typical Display (Power Sweep Measurements)
POWER
POWER
POWER
RF POWER
ON / OFF
UPD SWP
ON / OFF
POWER
SWEEP
PWR SWP
ON / OFF
START
POWER
STOP
POWER
FREQ
SWEEP
TIME
ANALOG /
DIGITAL
STEP
SIZE
RETURN
Menus used for Power
Sweep Measurements Display Produced by
Power Sweep Measurements (Typical)
-20 4 10
STRT -2.00 dBm
CH1 : SW A CRSR 6 dBm
2 dB/ REF 4 dBm
1
PSF 2000.0 MHz
dBm
STOP 10.00 dBm