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3. CHECKING THE OP ERATION
(1) While performing the installation, set
the
marker switch
of
the unit to the
"OFF"
position and the marker fre-
quency switch in the "100KHz" position_
(2)
Connect
the plug
of
the
internal
speaker on the top
cover
to
the
original connector,
or an external speaker
to
the external speaker jack on
the rear panel.
(3) Make
sure
the power
switch of your
1C-730
is
turned
OFF.
Set the
other
controls and switches
in
the receive
mode
according to
the manual of IC·730. Then connect
the power plug to the power
socket of
the IC-730.
(4)
Turn the power
switch of the
IC-730 ON, and the
set
operates
in the receive mode.
(5) Set
the marker switch
of
this unit to the
"ON"
position
and
the marker
frequency
switch in the " 100KHz"
position
.
Then turn the
tuning control
knob, and
you
can receive
a
strong signal
on
every
100KHz.
(6) Set the
marker
frequency switch in the "25KHz"
po.
sition,
and you can
also receive
a strong
signal
on every
25KHz.
These are the
complete
operations of the unit.
(7)
When
the operatfons are
performed, unplug the power
cord again and replace
the
speaker
connector and covers.
4.
CALIBRATION
OF
THE MARKER
(1) Set the MODE
Switch
in
the
"AM"
position
and
BANO
Switch
in the
"lOMHz"
position,
then
turn ON the
POWER
Switch.
(2)The
FREQUENCY DISPLAY will show
" 10.100.0".
Turn the TUNING CONTROL knob to tune to WWV
(or
other standard
frequency station) on 10.000MHz.
Set
the TUNING RATE Switch
in
10Hz
steps
for fine
tuning.
(3)
Turn ON the marker
switch on the
unit and
adjust
the
FREQUENCY
ADJUST trimmer
on
the
unit
to
make
"zero beat"
with WWV
.
(4) When you have
performed
the
calibration,
turn
OFF
the
marker
switch.
5.
CALIBRATION OF THE TRANSCEIVER
i1)
Set the MODE SWitch
in
the
CW position and the
TUNING RATE
SWitch
in 100Hz
position.
Tune
to
the
lower band
edge of
the
band you
want
to calibrate,
as an example,
"21
.000.0".
(2) Ground the Key
jack
on
the
rear panel so that
the CW
sidetone
becomes audible. (Don't
transm it.)
(3)
Turn ON
the marker switch, and adjust
the
FRE-
QUENCY SET control of the set, so that
the
two
tones
are of
the
same
pitch (In
zero
bead.
(4) The frequency
calibration is
suHicient on a frequency
on
the
same
band, but it is required
for each
band.
6-3
6
-
3
-
2
INSTALLATION OF THE IC-E
X203
(CW
AUDIO
FILTE
R
UNIT)
1. PARTS
LAYOUT
P
1
ITo
J3
0fOETuniti
2. INSTALLATION PROCEDURE
(1) Loosen
two
retaining
screws of the
upper
sub-chassis,
and
turn the
sub-chassis around hinges on
the
other end
as
shown
in
the photo.
(2)
Loosen
the front side screw of the shaft coupling
sleeve
of
the band
switch and
remove
the shaft sliding
toward
front side.
Install
this
unit
to the
position
shown in the
photo,
using
SQ'SWS
that have
been attached.
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by
RadioAmateur.eu
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