HP 8591C User Manual

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Channel Measurements
Making Channel Measurements
carrier-to-noise test calculates the noise contribution of the external
amplifier and reports that correction on the MORE INFO screen of the
carrier-to-noise test.
l Connect the output of the external ampliEer to the analyzer input (or
input of coupler).
l Connect the cable TV signal to the input of the external ampliEer.
l Press Analyzer Input EXT AMP YES NO to underline YES.
l Press EXT AMP GAIN then enter the gain value of the external
ampliEer. The default value is 20 dB for the HP 85905A preamplifier.
l Press EXT AMP NZ FIG then enter the noise Egure value of the
external ampliEer. The default value is 7 dB for the HP 85905A
preampliEer.
l Press Prev Menu to return to the Setup menu.
The TOTL PWR (B INPUT function measures the total RF power into the
analyzer. Use this function to externally adjust the total power into the
analyzer or preampliEer for optimization of measurement dynamic range.
16:32:15
OEC 86, 1993
EF 37.5 dBmV
enm
AT 10 dB
PEAK 1
:
EXT AtlP
YES NO
EXT RNP
GAIN
EXT AMP
NZ FIG
OTL PWR
@ INPUT
CENTER 57.868 tlHi!
RES BW 38 ktlz
PrQtl
Menu
SPAN 6.888 MHz
UBW 38 kHz SWP 20.0 msec RT
Figure 2-2. Analyzer Input Configuration Menu
6. RW analyzers with Option IO?: Press GATING YES NO to enable
immediate gated (YES) or non-gated (NO) measurements. This function
applies to the carrier-to-noise and CSO measurements only.
2-6

HP 8591C Specifications

General

Brand	HP
Model	8591C
Category	Measuring Instruments
Language	English