HP 8591C User Manual

I
-
Channel Measurements
Making Channel Measurements
NOTE
Spurious signals in the integration range can negatively affect the result because the power in the
spurious signal is added into the noise level. It is best to find the reason for the spurious signal and
eliminate it. But if this is not possible it is best to reduce the integration range and adjust its position
so it does not include the spurious signal.
14:85:54 JAN 25, 1995
@ CHANNEL m (STO) MKR 225.582 MHz
REF -4.3 dBmV #AT 10 dB -39.72 dBmV
GTPOS'
:
LOG
ti,
. . . . . . ...' :..
..' ,,,,,
:
FCC MEhSUREtlENT RANGE (4 MHz) -(
,,,,,,,
WA SB
SC FS
*OUTER MARKERS DEFINE hClU!L ;
:..
N,O!SE,I.NTEGRATION RANGE
CORR
.:
*KNOB CONTROLS CENTER OF RANGE
. . . . . . . . . . . . . . . . : . . . . . . . . . .
..,,
C/N ii MHz'> = dBc
START 221.752 NHz STOP 227.752 llHz
YRES BW 30 kHz
YUBW 3 MHz XSWP 6.96 set
mm
GATE
ON OFF
CIUERAGE
&I OFF
NORE
INFO
MAIN
MENU
Figure 2.12. Carrier.to-Noise-Modulation and Gating On
NOTE
The AVERAGE ON/OFF key defaults to ON for the gated test because it is done with a wide
video bandwidth. The non-gated test is done in a narrow video bandwidth so this key has less obvious
effect in this mode.
2-18

HP 8591C Specifications

General

Brand	HP
Model	8591C
Category	Measuring Instruments
Language	English