3-38 Chapter3
Functional Testing
Resolution Bandwidth Switching Uncertainty
Required Equipment
(No Equipment Required)
Procedure
NOTE The 50 MHz reference output will automatically be switched internally
on the E4401B and E4411B and will not require any external
connections. All other ESA analyzers require that the AMPTD REF
OUT be connected to the INPUT to perform this test.
1. Press
System, Power On/Preset, Preset (Factory), Preset on the
analyzer. Wait for the preset routine to finish. Set the analyzer by
pressing the following keys:
Input/Output, Amptd Ref (f=50 MHz) (On) (E4401B and E4411B)
Input/Output, Amptd Ref Out (f=50 MHz (On) (E4402B, E4403B,
E4404B, E4405B, E4407B and E4408B). Connect a cable from the
AMPTD REF OUT to the INPUT 50 Ω.
FREQUENCY, 50 MHz
SPAN, 50 kHz
AMPLITUDE, –20 dBm
Scale/Div, 1 dB
More 1 of 2, Amptd Units, dBm (75 Ω Input only)
BW/Avg, 1 kHz
Video BW Auto Man, 1 kHz
2. Press AMPLITUDE and use the knob to adjust the reference level until
the signal appears five divisions (mid-screen) below the reference
level. Press the following keys on the analyzer:
Peak Search
Marker, Delta
FREQUENCY, Signal Track (On)
3. Set the analyzer Resolution Bandwidth and Span according to
Table 3-6 on page 3-39.
4. Press Peak Search, then record the ∆ Mkr 1 amplitude reading in
Table 3-6.
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