Chapter 2 317
Performance Verification Tests
37. Displayed Average Noise Level: Agilent E4404B and E4405B
Figure 2-55 Displayed Average Noise Level Test Setup
2. Press System, More, Show System. If there is an entry shown which
reads 1DR: Narrow Resolution BW, then enter 10 Hz below;
otherwise enter 1 kHz as the minimum RBW (resolution
bandwidth). Keep this value in mind as you continue to perform this
procedure. Also, take note of whether or not Option 1DN (3.0 GHz
Tracking Generator) and Option 1DS (RF Preamplifier) are
installed.
Minimum RBW____________ Hz
Option 1DN: ____________
Option 1DS: ____________
3. Press Preset on the analyzer. Press the Factory Preset softkey, if it is
displayed. Then press the following keys:
Input/Output (or Input), Amptd Ref Out (On)
FREQUENCY, Center Freq, 50 MHz
SPAN, 2kHz
AMPLITUDE, –20 dBm
AMPLITUDE, Attenuation, 10 dB
BW/Avg, Res BW, 1 kHz
BW/Avg, Video BW, 1 kHz
Det/Demod, Detector, Sample, Return
4. On the analyzer, press Single, Peak Search (or Search) and record the
Ref Amptd reading below.
Ref Amptd ____________ dBm
5. If the analyzer does not have Option 1DN (3.0 GHz Tracking
Generator) installed and the minimum RBW is 10 Hz, continue with
step 10.