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240 Chapter 23
CMMB Measurement Application
N6158A, CMMB Measurements Application
N6158A, CMMB Measurements Application
Description Specifications Supplemental Information
Channel Power Input signal must not be bursted
8 MHz Integration BW
Minimum power at RF Input –50 dBm (nominal)
Absolute Power Accuracy
a
20 to 30 °C
a. Absolute power accuracy includes all error sources for in-band signals except mismatch errors and
repeatability due to incomplete averaging. It applies when the mixer level is high enough that measure-
ment floor contribution is negligible.
±0.94 dB ±0.27 dB (95th confidence)
Measurement floor –78.7 dBm
Description Specifications Supplemental Information
Channel Power with Shoulder
Attenuation View
Input signal must not be bursted
7.512 MHz Integration BW
ML = –15.91 dBm (nominal)
Dynamic Range, relative
a
Offset Freq
4.2 MHz
a. The dynamic range specification is the ratio of the channel power to the power in the offset and region
specified. The dynamic range depends on the measurement settings, such as peak power or integrated
power. This specification is derived from other analyzer performance limitations such as third-order
intermodulation, DANL and phase noise. Dynamic range specifications are based on default measure-
ment settings, with detector set to average, and depend on the mixer level. Mixer level is defined to be
the input power minus the input attenuation.
87.1 dB 94.2 dB (typical)