384 Chapter 2
Performance Verification Tests
51. Gate Mode Additional Amplitude Error: Agilent E4401B, E4402B, E4404B, E4405B, and
E4407B (Option 1D6)

51. Gate Mode Additional Amplitude Error:

Agilent E4401B, E4402B, E4404B, E4405B,

and E4407B (Option 1D6)

This procedure measures the additional amplitude error while gate
mode is turned on. An amplitude reference is established while gate
mode is off. Gate mode is then turned on with a function generator
providing the gate trigger input. The amplitude with gate mode on is
then measured using the marker delta function.
There are no related adjustment procedures for this performance test.
Equipment Required
Synthesized signal generator
Function generator
Cable, Type-N (f), 50
Cable, BNC, 120 cm

Additional Equipment for Option 1DP

Adapter, Type-N (f) to BNC (m), 75
Minimum loss pad
Additional Equipment for Option BAB
Adapter, Type-N (f) to APC 3.5 (f)
Procedure
1. Connect the equipment as shown in Figure 2-71.
2. Press Preset on the analyzer. Press the Factory Preset softkey, if it is
displayed. Set the analyzer by pressing the following keys:
FREQUENCY, 300 MHz
SPAN, Zero Span
AMPLITUDE, Ref Level, –20 dBm (50 Inputs only)
AMPLITUDE, Ref Level, –10 dBm (75 Inputs only)
AMPLITUDE, More, Y Axis Units (or Amptd Units), dBm
Sweep, 20 ms