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Adjustments
Manual Adjustments
Automated Adjustments
This section documents the following automated adjustments:
1. AM Level and Distortion (Not used for serial prefixes ≥ 3847A/3847U)
2. Detector Offset (Not used for serial prefixes ≥ 3847A/3847U)
3. Output Level
4. AM Level: FE (Not used for serial prefixes ≥ 3847A/3847U)
5. Predistortion and Detector Offset (Not used on some versions of hardware)
6. Prelevel
7. Output Level: FE
8. AM Modulator
9. Time Base DAC
10.Motherboard Audio Path
11.DCFM
12.Audio Generator
13.HF Power Level Accuracy
14.LF Output Level
15.LF Power Level Accuracy
16.FSK Deviation
17.Filter Path
Note: Before performing these automated adjustments:
• Ensure that the Device Under Test (DUT) and all test equipment have been turned on
at lease 45 minutes. Shorter warm-up times may result in improper adjustment.
• Ensure that all GPIB connections are securely made between the test equipment, the
DUT, and the PC.
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