HP 8591C User Manual

Specifications and Test Aids
Cable TV Measurement Specifications and
Characteristics
Depth of Modulation lcharacteristicl
AM Range
Resolution
Accuracy
Percent AM is measured from horizontal sync tip to maximum video
level; measurement requires a white-reference VITS and may not be
valid for scrambled channels.
50 to 93%
0.1%
1*2.0% for C/N > 40 dB
Digital Channel Power Measurement Characteristic
Accuracy *l.O dB for 6 MHz channel bandwidth and 10 averages
FM Deviation (characteristic1
Range
Resolution
Accuracy
Peak reading of FM deviation
flO0 kHz
100 Hz
~t1.5 kHz
HumlLow.Frequency Disturbance
AM Range
Resolution
Accuracy
Power-line frequency and low-frequency disturbance measured on
modulated and/or unmodulated carriers. May not be valid for scrambled
channels.
0.5 to 10%
0.1%
1tO.4% for hum 13%
1tO.7% for hum 55%
f1.3% for hum 510%
Visual Carrier-to-Noise Ratio (C/N)*
Optimum Input Range
Maximum C/N Range
C/N Resolution
C/N Accuracy
The C/N is calculated from the visual-carrier peak level end the minimum
noise level, normalized to 4 MHz noise bandwidth.
See Graphs+
Input level dependent - See graphst
0.1 dB
Input level and measured C/N dependent
kl.0 to f3.5 dB over optimum input range
‘A preamplifier and preselector filter may be required to achieve specifications.
tOptimum input range is determined at the time of measurement since a total input power measurement is first done to automatically set the
attenuator.
9-5

HP 8591C Specifications

General

Brand	HP
Model	8591C
Category	Measuring Instruments
Language	English