Tuned Digital Channel Display - HP 8591C User Manual

Channel Measurements
Making Channel Measurements
Digital Channel Power
The digital channel power measurement computes the total power within
Measurement
the speciEed bandwidth (between markers) of the selected channel. Before
the digital channel power measurement can be accessed the channel
measurement mode must be active with a channel selected.
Press the CHANNEL MEAS key in the main menu to select the channel
measurement mode. Next press the CHANNEL SELECT key and enter any
channel.
When tuning the channel to be measured, the channel edges must be within
the display limits for accurate results. The default RBW and VBW assumes the
channel bandwidth occupies at least 75% of the selected span.
When tuning in the channel mode, there are two methods which allow
manual setting of the center frequency and span.
M e t h o d #l - T u n e b y
1. Press the
center frequency and
frequency span
2. Press the m front panel key, select SPAN and enter the frequency
2-42
SEP 12,
CENTER 314.68 NHz
RES 8W 1BG kHz
Figure 2-27. Tuned Digital Channel Display
setting.
span setting then press (Enter).
1996
SPAN
CENTER FREQ and enter the center frequency
SYSTEM
FRQ RSP
IN-CHNL
FRQ RSP
DIF GRIN
DIF PHfiZ
CLDI
DIGITAL
CH POWER
8.88 MHz 8 of 8
RT