Agilent Technologies 75000 Series C - Manual (Page 54)

Test 2-6: AC Flatness - 10 MHz Filter
Description
The purpose of this test is to verify that the AFG meets its specifications for
AC flatness with the 10 MHz filter enabled.
Equipment Setup
• Connect equipment as shown in Figure 2-6
•
Set DMM to ACV, autorange
Test Procedure
1. Reset the AFG:
*RST;*CLS Reset AFG and clear
status registers
2. Set up the AFG to output a 24 dBm sinewave with the 10 MHz filter
enabled:
VOLT 24DBM; Set amplitude
:OUTP:LOAD 50 50 ohm load
OUTP:FILT:FREQ 10MHZ 10 MHz filter
OUTP:FILT ON Enable filter
INIT:IMM Initiate waveform
3. Set AFG output to the reference frequency (1 kHz):
FREQ 1000 Set frequency
4. Measure the amplitude with the DMM, convert the reading to dBm,
and note the reading for future reference:
Reference Level
(
dBm
) =
20
×
log
ï
Reading
(
volts
)ï+
13.0103
5. Set the AFG to the crossover frequency (lowest frequency that the
Power Meter can measure):
FREQ 1E5 Set frequency
6. Measure the amplitude with the DMM and note the reading for future
reference.
52 Verification Tests Agilent E1445A Service Manual