HP 8510 User Manual

Duty Cycle
The ratio of the time that the pulse is ON to the total Pulse Repetition Period. If the pulse
ON and OFF times are equal, the Duty Cycle is 50 percent.
For internal operation, the maximum duty cycle p ercent limit can b e specied, but the actual
duty cycle may b e less, depending up on the user-specifed pulse width and the time it takes for
the analyzer to set up for the next measurement.
Pulse Width
The ON time from the 50 p ercent point on the rising edge to the 50 percentpointon the
falling edge.
The internally-generated Pulse Width can be set from less than 100 nanoseconds to 40.88
milliseconds.
Rise/F
all
Time
The
pulse
transition
time:
tr
=
pulse
rise
time
The
time
it
tak
es
for
the
pulse
to
rise
from
the
10
p
ercen
t
ON
condition
to
the
90 p
ercen
t
ON
condition.
tf
=
pulse
fall
time
The
time
it
tak
es
for
the
pulse
to
fall
from
the
90
p
ercen
t
ON
condition to
the 10
p
ercen
t
ON
condition.
The
normal
IF
resp
onds
to
rise/fall
times
of
ab
out 75
microseconds; the
wideband IF
responds
to rise/fall times of ab out 300 nanoseconds.
Trigger
Dela
y
The
time
after
pulse
ON
that
the
measuremen
t
is
actually made.
In the F
requency domain, the T
rigger Dela
y can b e set from do
wn to -6 resolution p erio
ds
(internal) or +3 resolution p erio ds (external) and
up to 40.88 milliseconds. In the Pulse
Prole domain the trigger dela
y is automatic depending upon the displa
y time span, pulse
width,
and numb er of p oin
ts.
3-2
Principles
of
Pulsed-RF
Netw
ork
Measurements

HP 8510 Specifications

General

Dynamic Range	>100 dB
Number of Channels	2
Display	CRT
Resolution Bandwidth (RBW)	1 Hz to 3 MHz
Device Type	Network Analyzer
Interface	GPIB