HP 8591C User Manual page 262

Cable tv analyzer cable tv measurements
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CHANNEL
REF 5,7 dBmV
GTPOS
LOG
VA WE
SC FC
.
.
.
CENTER
68.740
YRES 8W 30 kHz
Figure 8-3. Carrier-to-Noise Measurement
In channel measurement mode, pressing More MORE INFO shows the raw
data and all corrections used for this measurement.
JAN 25, 1995
REF -3.0 dBmV
Uncorrected
Correct
LOG
IF Noise Equlv. Pwr BW
Analyzer Noise Correction (-1.76) = -18.81
Ext
C/N
Total
START
179.744
Carrier-to-Noise Ratio Test Description
1993
MEASUREMENT RnNC'E
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..~........~........ . .
M A R K E R S
D E F I N E
NOISE
INTEGRATION
RANGE
.
.
CONTROL5
CENTER
OF
SPAN
CALCULATION
marker
on
to
measurement
detect
Noise
Preamp
Noise Correction<-G-17) = -18.18
Carrier
Level
Corrected
29.28
Analyzer
Input
STOP
Figure 8-4.
MORE INFO
Test Descriptions
69.490 MHz
-30.03
O F F
RNG SET
:
RANGE
. ...,: ,......, :,
MENU
6.888 MHZ
RT
-18.23
-15.73
-16.25
RE-ENTER
C/N
TEST
Noise
4 7 . 3 8
TOTL PWR
42.1
INPUT
29.2
185.744
T
6.90
Screen
8 - 9

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