HP 70427A User Manual page 582

3. Set RF source to OTHER:
a. Press the
Service
b. Press the
Misc
c. Press the
RF Source
d. Press the
OTHER
4. Set the frequency to 12.6 GHz:
a. Press the
Output
b. Press the
FREQ
c. Enter 12.6 with the numeric keypad.
d. Press the softkey.
GHz
5. Set the output power to +10 dBm:
a. Press the
Output
b. Press the
OUTPUT POWER
c. Enter 10 with the numeric keypad.
d. Press the softkey.
dBm
Step 3 - Set HP 8662A Power and Frequency
1. Set HP 8662A output frequency to 600 MHz.
2. Set HP 8662A output power to +5 dBm.
Step 4 - Set calibration source power to equal DUT power
Power is measured by bridging the HP 3561A across the output of the AM
detector and making a DC voltage measurement.
1. Set up the HP 3561A for DC voltage measurement
Press the following HP 3561A keys:
•
VERT SCALE
softkey.
•
RANGE
softkey so that
•
DEFINE TRACE
softkey.
•
in the MARKER key group then the
MKR
so that
The Y value of the marker will indicate the dc voltage across the AM
detector. This voltage is proportional to RF output power.
Test 9 - AM Noise and Spurs (RF)
softkey.
softkey.
softkey.
softkey.
softkey.
softkey.
softkey.
softkey.
in the DISPLAY key group then the
in the INPUT key group then the
is underlined.
ON
in the DISPLAY key group then the
is underlined.
ON
HP 70427A/HP 70428A User's Guide 14-71
Performance Tests
LINEAR
AUTO RNG
TIME
softkey
MKR