4 Theory of Operation
70 Keysight N1913/1914A Service Guide
Calibrator Assembly
Purpose
– Provides a 1 mW (0 dBm) power reference level at 50 MHz
Inputs
– Power supplies [from PSU, via main board]
– Control, address, and data lines [from PPMC]
Outputs
– 1 mW (0 dBm) power reference [to external equipment]
– Control and data lines [to PPMC, via main board]
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