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SECTION
I
INTRODUCTION
1.1
MODEL
158
The
Wavetek Model 158
Waveform
Generator
is
a
remote-
control
only
Model 159
generator (without front panel
controls
and
indicators). All
information
on
the
Model 159
generator
also pertains to
the
Model
1
58
generator
except
local
operation.
1.2
MODEL
159
The
Wavetek Model 159
Waveform
Generator
is
digitally
controlled
locally
with
front
panel,
keyboard pushbuttons,
and
remotely with
a selection
of 21
ASCII
(7-level)
"typing"
characters (with appropriate external
interface).
The
effect
of each control
is
digitally
displayed
on
the front panel
with
red
LED
(light
emitting diode)
indicators.
Numeric
readout
of frequency,
offset
and amplitude
is
in
3-digit scientific
notation.
Sine,
triangle,
square,
and
ramp waveforms
of
frequencies
from
1
Hz
to
3
MHz
and
amplitudes
from 10
mV
p-p to
10V
p-p
can be
generated.
Waveform
generation can
be
continuous,
triggered
for
just
one
cycle
at a
time, or gated
for as
many
cycles or for as long as desired.
Waveform
center reference
levels
can be
offset positive
or negative
from 10
mV
to
5V
and
waveform
phase, or
polarity,
can be
inverted
(
1
80
degrees)
Along
with the
main
50
ohm
output
at
the
rear panel,
which
is
the controlled
waveform
signal
output, the
gener-
ator
delivers a
square
wave
of the
selected
frequency
for
a
synchronizing
pulse
output.
Analog
inputs
are received at
the
rear
panel for
a triggering
input
for triggered
and
gated operations,
and
a voltage
controlled generator
(VCG)
input
for
frequency
propor-
tional
to input
dc
levels.
The
5012
OUT
signal
can be swept
in
a
1000:1 frequency
ratio,
frequency
modulated
or
dc
programmed by
the
VCG
input.
The
trigger
and
gate
modes
can be used
for
pulse output,
one
cycle
output
or
tone
bursts.
Up
to
nine generators
can be connected
in
parallel
with
one
another
as a
multiple unit group.
Each
generator
is
inter-
nally
configured with
its
own
address, or unit
select
code,
from
1
to
9.
For example, an
installation
may
have
one
master
display
and keyboard
panel,
which
is
used to address
and
command
the
slave
generators.
The
status
of the
ad-
dressed generator
would
be
displayed.
1.3
INTERFACE
The
generator accepts
TTL
ground
true
7-bit
ASCII
"typing"
characters
serially;
the 7
bits
of each character are accepted
in
parallel.
A
clock
line
in
parallel
with
the data
bits
is
used
to clock
in
the data
characters.
Computer
control
is
accepted
as
is
keyboard
control
from
another generator
in
multiple
unit groups.
With computer
control,
the generator
keyboard
control panel
can be locked
out, or disabled, to
prevent
control
competition.
1.4
OPTIONS
Several interface
options
are available for
the
Model 158
and 159
generators.
They
include input
isolation,
RS232and
IEEE 488
compatible
data converters.
1.5
ACCESSORIES
Accessories
for
the generators include
interfaces for several
mini-computers.
1.6
PHYSICAL DESCRIPTION
The
mechanical
characteristics
of the
Models 158 and 159
are given
in
Paragraph
1.7.8.
The
standard
models
come
equipped
with
a
10
foot,
3
wire detachable
power
cord
and
rack
mount
adapters. Interface cabling requires
Molex
brand
connectors
(see
Paragraph
2.2.3);
one
is
furnished.
1.7
SPECIFICATIONS
1.7.1 Versatility
Waveforms
Sine
,
triangle
\
,
square
JL
,
ramp _/L (50%
duty
cycle),
and
auxiliary
TTL
sync
pulse. All selectable
waveforms
may
be
inverted.
1-1
3/76
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