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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 ïReading (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