Test 2-6: Ac Flatness - 10 Mhz Filter - Agilent Technologies 75000 Series C Service Manual

Test 2-6: AC Flatness - 10 MHz Filter

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