Download Instruction Manual

9640A
Instruction Manual
Power Meter
Instrument
9610A/AF REFERENCE SOURCE
96xx
HEAD INTERFACE
RF OUTPUT
SINE
MOD
CONTROL
-/
7
GHI
ABC
8
JKL
DEF
9
MNO
4
5
6
PQRS
TUV
WXYZ
1
2
3
ALPHA
LOCK
OPER
NEXT
CHAR
SWEEP
UNITS
10V
PK
MAX
STBY
0
.
-
BKSP
EXP
SPACE
ENTER
SETUP
RF
COMMON
CONNECT
96xx HEAD
ONLY
A
B
N Adapter
75
Leveling Head
Power Sensor
ead215f.eps
Figure 5-10. Equipment Connections- Level Accuracy Tests (75 Ω), High Frequency Points
10. Set the UUT as follows:
Mode
Frequency
Level
Output
Leveled Sine
100 kHz
+10 dBm
OPER
11. Configure the power meter to indicate readings in dBm. Enter the measurement
frequency (0.1 MHz) into the power meter to enable cal factor (frequency)
correction.
Note
The recommended power meter has power sensor calibration factors stored
internally in the sensor. Setting the input frequency in the power meter
automatically selects the appropriate cal factor for the measurement.
However, the power sensor may also be accompanied by a table of
calibration factors which must be applied externally.
Note
A diode-based power sensor may exhibit frequency dependent linearity
errors, and additional corrections for these errors must also be applied.
12. Allow the power meter reading to settle. Record the measured level in dBm as P2 for
use later in this procedure.
Note
The power meter autorange boundary may coincide with a measurement
point. To avoid unwanted power meter autoranging, manually lock the
power meter range once the 100kHz reading is obtained and maintain the
power meter range lock for all subsequent frequencies at this amplitude.
5-38