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Wavetek 3000 - Front Panel Controls Overview

Wavetek 3000
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OPERATION
O2
AccuracyLamps
Indicate
frequency
accuracy
.
±0
.001%
in
CW
and
AM
modes, ±(0
.001%
+
10
kHz) in
FMxl
and
±(0
.001%
+
45 kHz)
in
FMx100
.
Typically
the
lamp
willflash
for
a
few
seconds
after
power
is
turned
on
.
Under
normal
operationa
steady
light
indicates
that
the
unit
is
phase-locked
and the
frequency
accuracy
in-
dication
is
valid
.
A continuouslyflashing
light
indicates
that
one
or
more
of
the
phase
lock
loops
is
open
.
(The
open
loop
canbe
identified
by
removing
the top
cover
and
looking
for the
corresponding
"module
fault"
light
.)
O3
Output
LevelMeter
Indicates
outputlevel
over
a
10 dB
range
in
VRMS
and
dBm
.
4O
Unlevel
Lamp
Indicates
that
the
outputlevel
accuracy
is
not
validwhen
the
lamp is on
.
O5
Attenuator
Controls
the
outputlevel
over
a140
dB
range
from+10
to
-130
dBm
.
TheAttenuator
dial
is
calibrated
in
dB
and
VRMS
.
6O
Vernier
Controls
the
output
level
over
an
11
dB
range
.
O7
AM/FMVernier
Is
calibrated
from
O to
5
kHz
FM
peak
devia
tion
and
from
0
to
90%
AM
.
This
control
per-
mits precise
AM
and
FM
settings
with
the
mode
switch
in
AM
and
FMxlor
FMx100
respec-
tively
and the
frequency
switch
in
400
Hz,
1
kHz
or
Ext
.
Thevernier
also
serves
as
a
manualamplitude
and
frequency
control
with
the
frequency
switch
in
vernier
.
Thevernier
provides
up
to
+6 dB
amplitude
change
when
the
modeswitch
is
in
the
AM
and
also pro-
vides
up
to
a
+5
kHz
or up
to
+500
kHz
fre-
quency
change
when
the
mode
switch
is
in
FMxl
and
FMx100
respectively
.
FrequencySwitch
Selects
vernier,
for
manual
amplitude
or
frequencyicontrol,
400Hz
and
1
kHz
internal
modulation
and
external
modulation
.
O9
Ext
Modulation
input
accepts
a
DC to 20
kHz
sig-
nal for
AM
and
a
DC
to
25
kHz for
FM
.
A
10
V peak-to-peak
signal
into
a
600 ohm
impe
dance
calibrates
the
AM/FM
vernier
full
scale
.
A
lesser
.
input
voltagewill
result
in
a pro-
portional
full
scale
calibration
of
the
AM/
FMvernier
.
Therefore,
a
1
volt
peak-to-
peak
signal
into
600
ohms
will
result
in
a
2-3

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