Dynamic Accuracy Test - Agilent Technologies E8362B Service Manual

Tests and Adjustments
Performance Tests (Agilent N7840A Software Package)

Dynamic Accuracy Test

Function of the Test: To measure the relative power linearity of the analyzer's receivers.
Specification Tested: Test Port Input–Dynamic Accuracy
Equipment Used: The dynamic accuracy test set (Z5623A Option H01), a power meter
(E4418B or E4419B) power sensors, and two test cables.
Description of the Test:
1. The analyzer's test ports are tested separately at a specific CW frequency and a
reference power level of −20 dBm.
2. The analyzer's driving port is connected to the dynamic accuracy test set's source port
and the analyzer's receiving port is connected to the dynamic accuracy test set's
receiver port. A power sensor is connected to the dynamic accuracy test set's power
meter port.
3. The dynamic accuracy test set is used to input a signal from the driving port on the
analyzer. The input signal is routed through step attenuators to both the analyzer and
a power sensor.
4. The analyzer source and the dynamic accuracy test set create power levels that are
"deltas" from the reference power level of −20 dBm. Each delta is measured two ways:
by the power sensor and by the analyzer's receiver under test.
5. The analyzer's power level into the port under test is set to the −20 dBm reference
level.
6. The power level is measured with the power sensor: (P
7. The power level is measured using the analyzer's receiver under test: (P
8. The power level into the analyzer's port under test is stepped, in 5 dB steps, over the
range of 0 to −120 dBm. Each power level represents a "delta" from the reference level.
9. At each step, the power level is measured using the power meter: (P
10. At each step, the power level is measured using the receiver under test: (P
11. The power error in dB = (P
3-38
−P −P
)−(P ).
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Service Guide E8364-90026
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