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Test 2-5: Frequency Accuracy
Description
Equipment Setup
Test Procedure
Chapter 2
The purpose of this test is to verify that the AFG meets its specifications for
oscillator frequency accuracy.
Connect equipment as shown in Figure 2-8
–
Set Counter to: Frequency
–
Figure 2-8. Frequency Accuracy Test Setup
1. Reset the AFG:
*RST;*CLS
2. Set the AFG Aux Out port to output the reference oscillator:
MARK:FEED "ROSC"
INIT:IMM
3. Record the counter reading in Table 2-7. The AFG's reference
oscillator frequency should be 42.9497 MHz ± 50 ppm.
Reset AFG and clear status registers
Marker source is ref oscillator
Initiate waveform
Verification Tests 47
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