
SAFETY
Symbol
in
This
Manual
A
This
symbol
indicates
where
applicable
cautionary
or
other
imformation
is
to
be
found.
Power
Source
This
equipment
operates
from
a
power
source
that
does
not
apply
more
than
250
V
rms
between
the
supply
conduc-
tors
or
between
either
supply
conductor
and
ground.
A
pro-
tective
ground
connection
by
way
of
the
grounding
conductor
in
the
power
cord
is
essential
for
safe
operation.
Grounding
the
Product
This
equipment
is
grounded
through
the
grounding
conduc-
tor
of
the
power
cord.
To
avoid
electrical
shock,
plug
the
power
cord
into
a
properly
wired
receptacle
before
connect-
ing
to
the
equipment
input
or
output
terminals.
Use
the
Proper
Power
Cord
Use
only
the
power
cord
and
connector
specified
for
your
product.
Use
the
Proper
Fuse
To
avoid
fire
hazard,
use
a
fuse
of
the
correct
type.
Do
not
Operate
in
Explosive
Atmospheres
To
avoid
explosion,
do
not
operate
this
product
in
an
ex-
plosive
atmosphere.
Do
not
Remove
Cover
or
Panel
To
avoid
personal
injury,
do
not
remove
the
cover
or
panel.
Refer
servicing
to
qualified
personnel.
Voltage
Conversion
lf
the
power
source
is
not
applied
to
your
product,
contact
your
dealer.
To
avoid
electrical
shock,
do
not
perform
the
voltage
conversion.
CONTENTS
1
REA
TUORES
sic
ssecviucit
ances
vanadate
pee
denitia
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2
2.
SPECIFICATIONS
AND
ACCESSORIES.................
3
2-1.
SPECIFICATIONS..............:ecceeeseecenceeeeseeeneaes
3
2-2.
ACCESSORIES.
...........:.ececeeeeeeeceteereeseeenseoees
4
3.
PRIOR®
TO{USE.
a.
Jai
liveeeaeetissiesaseauadtscesedreaedbed
5
3-1.
ATTENTION
BEFORE
USING!
..................00
5
3-2.
EXTENDING
THE
FRONT
LEGS
....................
5
4.
FRONT
AND
REAR
PANELG.............:2:::eeeeeeeeee
eee
6
4=1.-FRONT
PANEL
vccceccc
certs
be
cece
cteedeted
eee
deer
oe
6
4-2:
REAR:
PANEL.
20:
..ccceee
serene
uyh
i
erence
de
ceevnean
caviedes
8
5.
DIRECTIONS
FOR
USE...........::::eeceeeeceeceseeeeeeeeeee
9
5-1.
BAND
SCOPE
FUNCTION
.......
0...
ces
ee
neces
9
5-1
PAHOOKAUP
wecctic
en
cuah
eet
ns
has
cennecidaee
ved
eases
9
5-1-2.
Initial
Setup
.........cececesscseeeceseeeeaeeeeeeeeees
9
5-1-3.
Operation........cccceceseeeeeeeeesesensenereeateneees
10
5-1-4.
Operation
of
Dual
Watch
Marker
.............
10
5-1-5.
Adjustment
of
Dual
Watch
Marker...........
10
5-2.
OSCILLOSCOPE
FUNCTION
............cceceeee
ees
10
5-2-1.
Initial
Setup
0...
cece
eeeseeeeeeeeteeneeeeen
ees
10
5-2-2:
Operations
ivisdeircoeuhendaartecicineccewereceeads
11
5-3.
MONITOR
SCOPE
FUNCTION..............0c00ec00e
11
5-3-1
HOOK
UD
sccsssiseceedevepugedstdccavts
te
cddax
Backaases
11
5-3-2.
Initial
Setup
........cccceececsessscncseseeassenenens
12
5-3-3.
Observation
of
Transmitted
Waveforms....
12
5-3-4.
Observation
of
Received
Waveforms........
13
5-4.
RTTY
CROSS-PATTERN
FUNCTION..............
13
5-4-7)
HOOK-UP
oo.
eé
ssvens
cdeves
vevide
Geavedeectecuacsveveae’
13
5-4-2.
Initial
Setup
..........eecsecescseecseceeeeeeeeees
14
5-4-3.
OPSatlOn.drccesens
cede
cssbeeberese
dh
dnadae
sh
uesavine's
le
14
6.
EXPLANATION
OF
CIRCUITRY.............ccccecseserees
15
6-1.
CIRCUITRY.
sseccccsteaine
coe
Ac
nseteaaedeentecesaatee
das
15
6-2.
UNIT
STRUCTURE
...........:cecscccseusersceerseeeaee
15
6-3,
BLOCK
DIAGRAM.
..........:::scecececverseeetserseeas
16
6-4.
CIRCUIT
DIAGRAM..........ccccsccssesenceceeeeaerenes
17
7.
MAINTENANCE
AND
ADJUSTMENT
............cc00008
21
7-1,
APTER-SERVICEs
ss
setcts
end
evendcnts
ea
vdemssvede
21
7-2.
CLEANING
AND
CARE.
...........cccsceseveeeeeseaeees
21
7-3.
BEFORE
DECIDING
IT’S
A
BREAKDOWN.......
21
7-4.
ADJUSTMENT
.......ccccccecscstetseeeecsaessereeressers
22
1.
FEATURES
The
SM-230
is
a
station
monitor
developed
as
a
peripheral
to
the
TS-950
transceiver.
Being
a
multi-function
monitor
scope
incorporating
oscilloscope,
band
scope,
monitor
scope,
RTTY
cross
pattern
observation,
and
tone
genera-
tor
functions,
the
unit
is
ideal
as
a
radio
station
peripheral
(for
supplementary
operational
use,
supervision,
and
equip-
ment
calibration).
1.
The
Band
Scope
portion
enables
observation
at
three
selectable
scan
speeds,
over
a
wide
maximum
bandwidth
of
500
kHz.
Three
bandwidths
may
be
selected:
50
kHz,
200
kHz,
and
500
kHz.
2.
With
the
Dual
Watch
Marker
function,
even
if
two
waves
are
received
simultaneously,
a
point
appears
on
the
mo-
nitor
indicating
the
reception
frequency
positions,
and
the
signals
can
be
confirmed
visually
(for
use
only
with
the
TS-950).
3.
The
unit
is
equipped
with
a
dedicated
RF
I/O
terminal
which
enables
observation
of
signal
waveforms
over
a
wide band
of
frequencies
up
to
150
MHz.
4.
The
oscilloscope
portion,
having
a
high
sensitivity
of
‘10
mV/div
and
a
wideband
frequency
characteristic
of
10
MHz
{-3
dB),
has
considerable
capabilities
for
the
observation
of
all
types
of
wave
forms.
In
addition,
it
can
directly
observe
IF
waveforms
received
from
the
TS-950
IF
terminal.
,
5.
Because
the
unit
is
equipped
with
a
1,000
Hz/1,575
Hz
two
tone
signal
generator,
it
can
be
used
in
transceiver
MIC
AMP
adjustment.
6.
The
unit
uses
a
large
6-inch-square
CTR
that
is
black
to
match
the
transceiver.