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Wavetek 3000 - SECTION 1 GENERAL INFORMATION; Introduction to Model 3000

Wavetek 3000
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1
.1
INTRODUCTION
The
Model
3000
is
a
rugged,
completely
solid-state
Signal
Generator
covering
the
frequency
range
of
1
to
520
MHz
.
The
output
can
be
amplitude
or
frequency
modulated
and the
level
canbe
set
be-
tween
+13
and
-137dBm
.
1
.1.1
FrequencyCharacteristics
The
frequency
of
the
unit
is
set
via
6
front
panel
lever/indicator
switches
which
yield
a
resolution
of
1
kHz
.
In
addition,
remote
frequency program
mability
is
standard
.
Thisfeaturemakes
the
Mode1
.3000
Signal
Generator
ideally
suited
for
both
semi
and
fullyautomatic
test
applications
.
The
accuracy
of
the
instrument
is
based
on a
crystal-controlled
oscillator
that
serves
as
a
stable
frequency
source
for
the
derivation
of
various
reference
frequencies
.
Thesereference
frequencies
arefed
to
phaselockedloops
that
enable
the
Model
3000
to
provide
high
stability
signals
to an
accuracy
of
0
.0017
over
its
specified
1
MHz
to
520
MHz
range
.
In
the
CW
and
AM
modes
of
operation
the
overall
accuracy
of
the
unit
is
0
.0017
including
short
term
drift,
long term
drift,
incidental
FM
and
variations
due
to
line
voltage
changes
and
temperature
changes
.
In
the
FM
mode,
the
frequency
is
accurate
to
0
.0017
t10
kHzup
to
5
kHz
peak
deviation
and
0
.0017
t45 kHz
up
to
500
kHz
peak
deviation
.
1
.1
.2
ModulationFeatures
The
Model
3000also
featuresboth
inter-
nal
and
external
amplitude
and
frequency
SECTION
1
GENERAL
INFORMATION
modulation
capabilities
.
Internal
modulation
frequencies
of
400
Hz
and
1
kHz
are
available
.
In
the
FM mode
of
operation,
peakdeviations
up to
500
kHz
are
attainable
.
In
the
AM mode
amp-
litude
modulation
to
907
is
-
attainable
.
With
the
MODULATIONMODE
switch
in
either
of
the
FM
positions
and
the
MODULATION
FREQUENCY
switch
in
the
vernier
posi-
tion,
the
frontpanel slide
control
po-
tentiometer
can
be
used
to
continuously
vary
the
output
frequency
over
either
a
5
kHz
or
500
kHz
range
.
With
the
MODULATION
MODEswitchin
the
AM
positionand
the
MODULATION
FREQUENCY
switch
in
the
vernier
position
the
out-
put
amplitude
can
be
varied via
the
same
front
panel
slide
control
.
This
provides
a reference
attenuator
for
variation
of
a
signal
levelaround
a
specific
point
of
interest
.
This
oper-
ationcan
also
enable
the
user
to
obtain
greater
than
20
milliwatts
of
power
over
portions
of
the
band
.
1
.1 .3
OutputLevel
Features
The
output
power
is
indicated
on
a
frontpanel meter
calibrated
in
both
dBmandVrms
.
A
fifteen-position,
10
dB
step
attenuator
used
in
conjunction
with
an
11
dB
vernier
control
provides
the
userwith
a
range
of
+13 dBm
to
-137
dBm
.
The
calibrated
output
of
the
Model
3000
is
leveled
to
within
±0
.75
dB across
the
complete
frequencyrange
of
the
instrument
.

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