User`s guide

7
Example 1:
Swept measurement with
automatically entered corrections
This example illustrates how to set up a 2 to 18
GHz swept measurement with a correction frequency
every 100 MHz (see figure 1 for system configuration).
The auto fill feature is used to increment the cor-
rection frequencies across the entire measurement
range. A 437B power meter automatically enters
correction data into the array.
When additional correction points are desired, use the
auto fill feature to enter new correction frequencies
in the required portion of the frequency span. When
the 437B is used, the meter measurement menu’s
([Mtr Meas Menu]) Meas Corr [Undef] softkey may
be utilized to measure just the correction data for
the additional points. The correction table should
be cleared before entering an entirely new list of
correction frequencies.
This example assumes that there is a 5 dB path
loss in the measurement system attached to an
83620A. To provide the maximum available power
to the device under test, a test port power of +5
dBm is selected. With user flatness correction
enabled, the source will provide +10 dBm at the
RF output port and +5 dBm at the test port.
Command Description
Setup source parameters
[PRESET] Reset source to a known state
FREQUENCY [START] 2 GHz Set start frequency to 2 GHz
FREQUENCY [STOP] 18 GHz Set stop frequency to 18 GHz
POWER [POWER LEVEL] 10 dBm Set power to +10 dBm
(maximum specified power)
Access user flatness correction menu
POWER [MENU] Access power softkey menu
[more] Display next softkey menu
[Fltness Menu] Access flatness softkey menu
Clear flatness array
[Delete Menu] Access delete array softkey menu
Delete [All] Clear array
MENU SELECT [PRIOR] Exit delete menu
Display previous softkey menu
[more] Display next softkey menu
Enter frequencies in flatness array
Auto Fill [Start] 2 GHz Set first frequency in user flatness
array to 2 GHz
Auto Fill [Stop] 18 GHz Set last frequency of the user
flatness array to 18 GHz
Auto Fill [Incr] 100 MHz Set frequency increment to every
100 MHz from 2 to18 GHz
Calibrate the power meter to the power sensor in use
Connect 437B’s power sensor to test port
Verify GPIB cable connection between source and power meter
Enter and store in the power meter the power sensor's cal factors for
correction frequencies in the array
[more] Display next softkey menu
Enter correction data into array
[Mtr Meas Menu] Access the automatic data entry
power meter menu
Meas Corr [All] Input the correction data
Remove power meter sensor from test port; do not reconnect device
POWER [FLTNESS ON/OFF] Enable user flatness correction
POWER [POWER LEVEL] 5 dBm Set test port power +5 dBrn
(P
0 max
- P
path loss
)
[SAVE] n Save the source parameters including
the correction table in an internal
register
Reconnect device under test