Ground Connections - Pioneer SX-727 Operation Instruction Manual

PIONEEfiI
ANTENNA AND
GROUND CONNECTIONS
FM
ANTENNA
FM
broadcast signais are obstructed somewhat by mountains,
buildings, and other obstacles. Therefore, even
if
a station
is
nearby,
a
high-gain antenna
may be
required. Select
the
antenna
in
accordance
with
the following rules:
. If
the
receiver
is
to
be located
in
a
wooden building
and
stations are nea.rby, use the T-type antenna which
comes
with
the
SX-727. As shown
in Fig.6,
connect the
feeder
terminals
of
the
antenna
to
the FM
antenna terminals.
Stretch
out the
antenna
proper
and secure
it
to the
ceiling
or a
wall
in
such
a
manner
that pickup is optimum,
as
determined by listening to the station to
be
received. Refer
to FM RECEPTION
on page
9.
o If
orientation
of
the T-type
antenna does
not
eliminate
background noise, connect
an
outdoor antenna
to
the
antenna terminals shown
in
Fig. 7.
Instead
of
an
FM
antenna,
a
combination FM/TV antenna may be
used.
NOTES:
1.
A
variety
of
FM
antennas are available. Consult
your
dealer for
selection.
'
;
"
::
:
I
:fr
;1 fi:"J
J"
i
:,x"l',,"
I:,"i""
I
"'"
J::
:: #
il
?h'
:'iil::
may
not
give the
desi
red
noise attenuation.
ln
such
cases,
consult
f
,:: ff
TL
:
:
":::l
I
:
i
ffi
'
:
",,::: :
J;
:Ti
"
:'"Ti
J:
i
"'
?
;"
"y
ceiver
as
shown
in
Fig.
B.
AM
ANTENNA
o
Refer
to AM
RECEPTIOI{ on
page
9. With
an
AM station
tuned
in,
position the ferrite antenna for optimum
pickup.
See
Fig.
9.
o If
positioning
of
the ferrite
antenna does
not
give satisfy-
ing results, stretch
out the AM
lead antenna
(vinyl-insulated
wire) and connect
it
to the AM
antenna
terminal.
Keep the
othes end
of the
antenna lead
as
high
as
possibie.
o If
the lead antenna
does
not
give
satisfying results, erect
an
outdoor
antenna and connect
it
as
shown
in Fig.
7. Special
construction is not
required; vinyl-insulated wire may
be
stretched between two
masts
or other
supports.
GROUNDING
o A
ground lead is
not
necessary
for
reception.
Still, from
the
viewpoint of safety
and
elimination of
noise, one should
be
used.
DIRECTION OF STATION
CONDUCTOR
(+l
OUTER
SHIELD
(BRAIDI
COAXIAL
CABLE
(75-ohm)
Fis.
6
AM ANTENNA
Strip
the
end
of
the
coaxial
cable
as
shown in A.
Loosen the screws shown
in
B.
lnsert the stripped
end
of
the
coaxial
cable.
Tighten the
screws.
Fis.
B
Fig.
9