
8.
Option
857
Amplitude
Fidelity
Performance
Tkst
Related
Adjustment
Log Amplifier Adjustments
Specification
Log:
Incremental
f0.1
dB/dB
over 0 to 80
dB
display
Cumulative
3 MHz to 30 Hz Resolution Bandwidth:
sf0.6
dB
max over 0 to 70
dB
display (20 to
30°C)
24~
1.5
dB
over 0 to 90
dB
display
10 Hz Resolution Bandwidth:
sf0.8
dB
over 0 to 70
dB
display (20 to 30°C)
sf2.1
dB
over 0 to 90
dB
display
Linear:
f3%
of Reference Level for top 9 l/2 divisions of display
Description
Amplitude fidelity in log and linear modes is tested by decreasing the
signal level to the spectrum analyzer in 10
dB
steps with a calibrated
signal source and measuring the displayed amplitude change with the
analyzer’s MARKER A function.
ENC
TEE
Figure 5-1. Option 857 Amplitude Fidelity Test Setup
5-2
Option 857
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