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Step 2 -Access the module's source screen
1. Press the
INSTR PRESET
2. Press the
softkey if necessary.
Source
HP 70428A: go to step 3.
HP 70427A: press the
HP 70428A Option 002: press the
Step 3 - Enter the first test frequency (2.4 GHz)
1. Press the
softkey.
Output
2. Press the
softkey.
FREQ
3. Enter the frequency with the numeric keypad.
4. Complete the entry by pressing the
The module's firmware won't accept an output power entry until a frequency
is entered.
Step 4 -Enter the output power (+20 dBm)
1. Press the
softkey.
Output
2. Press the
softkey.
POWER
3. Enter the output power with the numeric keypad.
4. Complete the entry by pressing the
The power you entered will be displayed in the lower left corner of the
screen. But, the module's actual output power, as measured by the internal
voltmeter, will be displayed on the
will be somewhere between the specified value and +20 dBM. You will
probably notice a difference between power shown on the
and the power measured by the measuring receiver. This is because the
measuring receiver is more accurate than the module's internal diode
detector.
Step 5 -Measure power at each frequency in the table
1. Press the
softkey.
Output
2. Press the
softkey.
FREQ
3. Enter the frequency with the numeric keypad.
4. Complete the entry by pressing the
5. Enter frequency into measuring receiver to invoke proper calibration
factors.
Test 1 - Maximum Output Power (mW LO)
key.
softkey.
Source
softkey.
Source
softkey.
GHz
softkey.
dB
display. The actual output power
Power:
softkey.
GHz
HP 70427A/HP 70428A User's Guide 14-5
Performance Tests
display
Power:
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