52 Chapter 2
Test Descriptions
Noise Source Supply Accuracy
Noise Source Supply Accuracy
Test Description
The Noise Source Supply Accuracy test verifies that the noise source
drive supply meets the published specifications. A Digital Multimeter is
connected to the +28V noise source supply BNC connection. The supply
is then tested in the on and off states.
Test Specification
• Noise Off 0.0V ± 1.0V
• Noise On +28V ± 0.1V
Related Adjustment
None
Required Test Equipment
The following equipment is required for the Noise Source Supply
Accuracy test.
Table 2-9 Equipment required for Noise Source Supply Accuracy test
Equipment description Critical specification for equipment
substitution
Recommended model
Digital Multimeter Input Resistance of 10 MΩ
Accuracy of 10 mV on 100 V range
3458A
DVM BNC Adapter BNC (F) to Dual Banana Plug (M) Adapter,
50 Ω
E9637A
BNC Lead Length 122 cm (48 in.), Frequency 10 MHz 10503A
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