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HP 416A - Page 62

HP 416A
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.......
.......
<1l
.
....
!-<
Q)
{fJ
"tj<
L!)
-
r-
......
-N
.......
d.
Use
two
linear
diode
peak
detectors
to
produce
two-
1000-cycle
voltages
proportional,
r
espectivel
y,
to
amplifier
input
and
out
-
put
rf
voltages.
The
two
BNC-to-BNC
cables
supplied
with
the
Model
416A
are
suitable
for
making
the
following
connections
be
-
tween
each
detector
and
the
Model
416A.
(
1}
Connect
one
detector
so
that
it
monitors
the
signal
input
to
the
amplifier
.
(This
connection
must
be
made
between
the
signal
generator
and
the
input
to
the
attenuator
(see
Fig.
17
].
}
Connect
the
output
of
this
detector
to
the
Model
416A
INCIDENT
/REFERENCE
input.
(2)
Connect
the
other
detecto
r
so
that
it
monitors
the
output
of
the
amplifie
r.
The
output
of
this
detector
w
ill
be
con-
nected
to
the
Model
416A
REFLECTED/PROBE
input,
but
is
not
to
be
connected
at
this
time.
e,
Check
that
the
signal
input
(reference
voltage)
is
within
the
opera-
ting
limits
of
the
Model
416A
.
The
RF
POWER
MONITOR
(tuning
eye}
permits
a
simple
check
as
to
the
correctness
of
the
modulating
frequency
and
magnitude
of
the
signal
generator
output
voltage.
A
procedure
similar
to
that
given
in
step
4
of
Operating
Proced
ure
for
Slotted
Lines,
above,
may
be
us
e d
to
make
this
check.
INC
IDE
NT
_.... _....
--,.
DETE
CTOR
...
~
REFERENCE
SIGNAL
....
GENERATOR
I
KC
1--+-1
_..
REFLECTED
ATTENUATOR
AMPLIFIER 1------1
DETECTOR
MODULATION
...
PROBE
MODEL
RATIO
Fig.
17.
Model
416A
Typical
General
Application
Measur
ement
of
Amplifier
Relative
Frequency
Response
Bloc
k
Diagram
-46-
4
16A
METER

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