A
Glossary
of
Pulsed-RF
System
T
erms
Introduction
This
section
con
tains
a
list
of
terms
used
to
describ e
the
pulsed-RF
stim
ulus
and
resp onse.
Figure
A-1
sho
ws
a
t
ypical
en
v
elop e
of
the
pulsed-RF
w
a
v
eform
output
b
y
the
RF
signal
source.
Pulse
Repetition
P
eriod,
PRP
The
time
from
the
50
p ercen
t
p oint
on
the
rising
edge
of
one
pulse
to
the
50
p ercen
t
p oint
on
the
rising
edge
of
the
next
pulse.
F
or
in
ternal
triggering
op eration
the
system
PRP
dep ends
up on
the
instrumen
t
state.
T
ypically
there
is
one
pulse
p er
measuremen
t.
The
pulse
is
turned
ON
for
a
user-sp ecied
time
and
the
measuremen
t
is
made
at
some
user-sp ecied
time
relativ
e
to
the
start
of
the
pulse.
The
time
un
til
the
next
pulse
consists
rst
of
the
time
required
for
the
analyzer
to
set
up
for
the
next
measuremen
t
and
second,
if
necessary
,
w
aiting
to
satisfy
the
user-sp ecied
pulse
width
and
dut
y
cycle
limit.
In
the
frequency
domain,
when
the
analyzer
is
tuned
to
the
next
frequency
,
the
maxim
um
PRP
is
ab out
30
milliseconds.
In
the
Pulse
Prole
domain,
the
frequency
do es
not
c
hange,
making
the
maxim
um
PRP
ab out
3
milliseconds.
With
a
v
eraging,
the
PRP
can
b e
ab out
1
millisecond
during
part
of
the
measuremen
t.
Other
factors
whic
h
aect
the
system
PRP
are
calibration
t
yp e,
pulse
width,
dut
y
cycle,
and
pulse
prole
domain
stop
time.
If
the
PRP
is
con
trolled
externally
,
the
HP
8510
external
trigger
input
is
used
to
sync
hronize
the
analyzer
with
the
pulse.
Pulse
Repetition
Frequency
,
PRF
P
R F
=
1
P
R P
Duty
Cycle
The
ratio
of
the
time
that
the
pulse
is
ON
to
the
total
Pulse
Repetition
P
erio
d.
If
the
pulse
ON
and
OFF
times
are
equal,
the
Dut
y
Cycle
is
50
p ercen
t.
F
or
in
ternal
op eration,
the
maximum
dut
y
cycle
p ercen
t
limit
can
b e
sp ecied,
but
the
actual
dut
y
cycle
may
b e
less,
dep ending
up on
the
user-sp ecifed
pulse
width
and
the
time
it
takes
for
the
analyzer
to
set
up
for
the
next
measuremen
t.
Glossary
of
Pulsed-RF
System
T
erms
A-1
Summary of Contents for 85108
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Page 9: ...C Loading the System Con guration Disk Introduction C 1 Procedure C 1 Index Contents 5 ...
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Page 32: ...Figure 2 3 HP 85108 System Cabling Diagram rack mounted system 2 14 System Installation ...
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Page 106: ...Figure 6 5 HP 85102 Pulsed RF Signal Path 6 14 System Service and Troubleshooting ...
Page 112: ...6 20 System Service and Troubleshooting ...
Page 113: ...Figure 6 7 HP 85108A Block Diagram ...
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Page 118: ...Figure 7 1 HP 85108 Replaceable Parts 7 2 Replaceable Parts ...
Page 121: ...Figure 7 2 HP 85108 Replaceable Parts Replaceable Parts 7 5 ...
Page 125: ...Figure A 1 Pulse Terms and Definitions Glossary of Pulsed RF System Terms A 3 ...
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