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First,
connect
the
T-type
internal
(indoor)
antenna
provided with the CT-610 to the 300 Q
BAL Terminals on the rear panel. The two arms of
the
'T' should
be tacked
at full stretch to the
ceiling
or
walls
of
your
room.
Try
them
in
different
positions,
and
choose
that which gives
the best reception for the weakest station to which
you
will
normally
be
listening.
If you
cannot
obtain
satisfactory
reception
even
varying
the
angle of the horizontal T through a full 180°, this
is an
indication
that you
need
an external
FM
antenna.
The T-type antenna
is adequate only in high
signal strength areas under favorable conditions. In
all
other
cases,
an
external
multi-element
FM
antenna is needed. To ensure the very best results,
a motor
driven
antenna
assembly
with
remote
control of orientation is best, but the CT-610 has
CTING
AN FM ANTENNA _
sufficient
sensitivity
to
operate
extremely
well
with a fixed antenna.
External antennas are available for use with the
30082
and 75Q
terminals: the latter will use the
shielded
coaxial
cable which
reduces
losses and
interference.
Antennas
intended
for
3002
bal-
anced
feeder
wire can also be used
with
75Q
coaxial cable, but a matching transformer is neces-
sary at the antenna.
Coaxial cable shuld be used
where the antenna must be located some way from
the CT-610, or where
interference. from automo-
bile ignition, etc., is troublesome.
The external antenna should be located as close
as
convenient
to
the
CT-610,
and
as
high
as
possible, It should be oriented to give the highest
SIGNAL
meter reading possible for the weakest
station
you will normally
be listening to. If this
direction
is not too critical, you can orient the
antenna
for
minimum
interference
from
auto-
mobile ignition, etc.
CONNECTING COAXIAL CABLE
1 Strip insulation
from
outside
braided
sheath,
and bend
back outside the insulation.
Expose
the projecting central core wire as shown.
2 Slacken
the two
retaining
screws,
insert the
coaxial cable, and re-tighten the screws so that
the clip grips the exposed braided sheath.
3 Connect
the central
core wire to the 752
terminal.
4
If your CT-610 is provided with a coaxial jack,
use this with a coaxial plug on the 75 Q coaxial
cable, Whether you use plug or terminal, ensure
that the braiding does not come
into contact
with the inner core.
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